1. Does the PowerwoRx e3 work in any home?
Yes it does! The PowerwoRx is designed to go into any home
with a single-phase circuit breaker panel with breaker switches. For homes
with the old screw in type fuses, the unit will work but additional hardware
will be required. The “energy savings” from PowerwoRx comes from how it
deals with inductive loads or to put it in more common terms, how it deals
with motor driven appliances. If you say "yes" to only two or more of the
following then you could be saving money on your electric bill right now!
Is your central air conditioner / heat pump unit 3 years or older?
Is your forced air furnace 3 years or older?
Do you have a pool?
Do you have a well?
Do you use an air conditioner?
Is your refrigerator / freezer not EnergyStar rated?
Do you have more than one refrigerator / freezer?
Is your washer / dryer not EnergyStar rated?
Do you have a hot tub or a Jacuzzi?
Is your dishwasher not EnergyStar rated?Is your home over 2500 Square feet?
2. Installation Considerations?
PowerwoRx e3 must be installed by a licensed electrician
(or equivalent in areas which do not issue licenses) or the 10-year Warranty
is void. The PowerwoRx e3 mounts next to a standard 100A or 200A single
phase power panel. The unit’s two supply wires (L1 and L2) are connected
into a dedicated 220V, 20A or 30A breaker, ideally located at the top of the
panel but can be installed anywhere an opening exists. The neutral and
ground are connected to their respective busses. Questions regarding proper
attachment and wiring should be directed to the electrician who can verify
local and state codes are being complied with. The Installation Guide which
accompanies the product can be found at the end of this document.
Some specific questions from Electricians…..
1. A standard 200 Amp service has 1-Panel with a 200 Amp main breaker,
usually located 3-5' from the meter. Should the PowerwoRx e3 be tied in on
the line-side of the main breaker or can a separate branch breaker be
installed and hook it up there? Could it even be installed to an existing
240 Volt breaker? ANSWER: The PowerwoRx e3 is always installed on the
switched side of the MAIN 200A breaker through a dedicated 20A or 30A
double-pole breaker. If the panel is full or there is not a double space
available to add a double-pole breaker, space can be made available by using
two split, slim-line or “piggyback” breakers.
2. Does the 20A or 30A dedicated double pole breaker need to be at the top
of the panel – there have been some manufacturers who say it must? ANSWER:
The dedicated double pole breaker can be installed in any open slot that
will accommodate a 240V breaker, regardless of whether it is at the top or
bottom. The reason some have suggested the breaker MUST be installed at the
top of the panel is the assumption that a surge or spike will only be
stopped if it reaches the PowerwoRx e3 first. This is not true. The
PowerwoRx Surge and Spike protection will activate as soon as the line
voltage exceeds the rated voltage +20%. Yes, it does take more time for the
voltage to travel to the bottom of the panel and then out to the PowerwoRx
e3 then if it were connected to the top slot in the panel. Regardless of
location, the Surge or Spike will be stopped or arrested long before it can
travel out from the panel on branch circuits to appliances and electronics
in the building.
3. Some areas require a 200A disconnect be mounted at the meter and from the
disconnect run a line to a 200A Main Lug Only panel inside the home. In that
application, should the PowerwoRx e3 be located at the exterior disconnect.
ANSWER: In all cases, the PowerwoRx e3 is always installed on the switched
side of the MAIN 200A breaker through a dedicated 20A or 30A double-pole
breaker, not on an exterior disconnect.
4. Many times the panel in the home is in a bedroom or other “living area”
where people may not want to look at this “green box” on the wall. Can it be
located elsewhere, like in a closet in the attic, and if so how far from the
panel is this permitted? ANSWER: The PowerwoRx e3 can be remotely located in
a closet or some other less-conspicuous location. Distance from the panel
should be minimized. Keep in mind that the two indicator lights are the only
indication that the PowerwoRx e3 is operating properly. Consequently the
unit should be located in an area where the lights can be checked. An
inaccessible attic would not be the ideal location.
5. If there were enough room in the panel could the PowerwoRx e3 be placed
inside the panel box? ANSWER: Because the two indicator lights are the only
indication that the PowerwoRx e3 is operating properly and code does not
permit the cover of the power panel to be modified, locating the unit inside
the panel would not be the ideal location.
6. Can the wires coming from the PowerwoRx e3 be shortened or lengthened and
if so do they need to be the same length? ANSWER: Yes the wires can be
shortened to whatever length is necessary and no the wires do not need to be
the same length. Continental Power allows the lengthening of the wires to
accommodate mounting the unit further away from the panel than the current
wiring allows. As a general rule, the length of the wires should be kept as
short as possible and electricians should follow standard electrical code
regarding adding wire to the unit.
7. Can PowerwoRx e3 be mounted horizontally rather than just vertically and
why does it have to be mounted at least 12” from the main panel? ANSWER: Due
to the way the PowerwoRx is assembled internally, the ideal mounting
orientation is vertically (as instructed in the Installation Instructions)
with the wires coming out the bottom. Continental Power allows a horizontal
mounting orientation with the cover on the top side and the wires coming out
on the right. In addition, the 12” requirement is being removed from the
installation instructions.
8. Many "Custom" homes have one 400A meter and run from there with a line to
each of (2) 200A panels in the home with main breakers. If we locate one
PowerwoRx e3 in just one of the panels are both panels protected? ANSWER:
One PowerwoRx e3 per 200A panel is required. If only one PowerwoRx e3 is
installed, only one panel is protected. In this case installing two
PowerwoRx e3’s is recommended, one per 200A sub panel.
9. If a home or small business has two 200-amp main panels, does a PowerwoRx
e3 need to be installed on both panels? ANSWER: Typically one unit is
recommended for each 200A panel. One reason you may want to only install one
unit is if the boxes are located next to each other, and the total
electrical usage is low – typically in the $200-$300 per month range. If the
electrical usage is well above this level or the panels are not side by
side, the only way to adequately treat the panels and protect the attached
appliances and electronics is to have a unit on each panel. The PowerwoRx
provides adequate treatment for typical home electrical usage, in other
words for typical inductive loads. If the electric bill is quite high – over
$500 per month, a single PowerwoRx will not provide the expected results.
10. If a home or small business has a 200 amp service and a 100 amp sub
panel either next to, or in a remote location, does a PowerwoRx e3 need to
be installed on both panels, or one of the panels, & if so which panel?
ANSWER: If the 100A sub panel is located close by and total electrical usage
is no more than $200-$300 per month, one PowerwoRx is adequate. If the 100A
sub panel is 100 yards away in another building, a second PowerwoRx on the
sub panel is suggested to insure the sub panel has adequate surge & spike
protection, harmonic filtration, and PF reduction. Of course it is also
dependent on what reactive loads are tied to the sub panel. If there are
little or no reactive loads, and there are few appliances or electronics to
protect, a unit on the sub panel would not be warranted. Conversely, if
there are a large number of reactive loads being powered by the sub panel, a
separate PowerwoRx will be needed.
3. How long will the PowerwoRx e3 last?
It has a predicted lifespan of over 20 years and comes with
a 10-year warranty. This claim is based upon the synergy between the three
components which protect each other and lessen the derating of components
which is typical in “capacitor in a box” type products.
4. What is the PowerwoRx e3 Warranty?
The warranty on PowerwoRx e3 is the best in the industry –
a full 10 year! The patent pending design and the quality of the components
used in the PowerwoRx e3 Whole House Energy Management System lets us offer
this industry leading warranty. No other manufacturer comes close. Even if
the PowerwoRx e3 performs as it should in the event of a lightning strike
nearby, and the Industrial rated MOV’s which absorb the energy sacrifice
themselves, Continental Power will repair or replace the unit.
In addition, a $25,000 warranty on the homeowners appliances AND electronics
is included! For more details on this warranty see the policy at
www.continentalpowerworx.com website. It should be noted that the PowerwoRx
only protects against surges on the electrical lines, not on the Telephone
or TV Cable. For 100% protection Telephone and Cable surge protectors are
needed.
Note: The $25,000 warranty on the homeowners appliances AND electronics
applies to the residential PowerwoRx e3 only. A PowerwoRx e3 installed in a
commercial facility is not covered. The commercial 3-phase PowerwoRx have
the same industry leading 10-year product warranty, but do not have the
appliance/electronics warranty. This is not a liability insurance policy.
The PowerwoRx, along with all products offered by Continental Power are
insured by a multi-million dollar manufacturer’s liability insurance policy.
5. How much current will the PowerwoRx e3
handle?
The PowerwoRx e3 is designed for 240V and 200A which is
typical for residential applications. The PowerwoRx cannot be damaged if
used on an application which would be better served by a larger unit. The
only down side would be the inability to store as much reactive current
required for the motors being used, which means that current must come from
the utility. In addition, where harmonic filtration is needed for larger
“Commercial” applications, a line of 3-Phase Commercial PowerwoRx e3 units
is available through Continental Power.
6. Will the PowerwoRx e3 affect any of my
appliances and their normal use?
No, if anything, your motors will run about 10% cooler,
which is good because heat is the enemy of a motor. PowerwoRx e3 reduces I2R
line losses which improves voltage stability, improving motor performance.
7. Is the PowerwoRx e3 tested and approved
by independent labs?
PowerwoRx e3 is UL listed and tested (PowerwoRx UL
certificate is under the UL 508 “Industrial Control Equipment” category, UL
Certificate # E320259, dated 3/27/08).
The technology is also recognized by the U.S. Department of Energy.
8. How much can I expect to save per month
by using the PowerwoRx e3?
That depends on many factors. The size of your home, the
amount of inductive motor load, and the amount you are paying per
kilowatt-hour for electricity, harmonic noise on your electrical lines,
surge & spike issues, etc. Based upon customer feedback by far the majority
of users are seeing a savings but it is important to point out that some
users have seen no energy savings based upon initial power factor above 95%,
low harmonics and other factors.
A few states have electric utilities which are beginning to penalize
residential electric customers for poor power factor as implementing charges
for peak demand. In these locations the opportunity for savings by
installing the PowerwoRx is increased significantly due to the PowerwoRx
ability to eliminate Power Factor penalties and reduce peak demand.
9. How long will it take for the
PowerwoRx e3 to pay for itself?
Looking strictly at Energy Savings the product can pay for
itself within 2-4 years. This of course depends on individual circumstances,
number of appliances and age, electrical costs and usage patterns, the homes
power factor as well as other criteria. The other benefits can turn out to
be the biggest benefit of all! Consider Surge & Spike Protection, as well as
the harmful effects of harmonic distortion. These invisible but very real
threats to all electrical appliances and electronics in the home can and
will cause premature failure. Considering the significant investment in
these appliances and electronics, often totaling in the 10’s of thousands of
dollars, the protection provided by PowerwoRx e3 could be the biggest
money-savings benefit of the product.
10. Is the PowerwoRx e3 easy to install
and who is qualified to perform the installation?
Yes, but the PowerwoRx e3 must be installed by a licensed
electrician or qualified electrical installer in areas where electricians
are not required to be licensed. Qualified installers can be HVAC
contractors. It is ultimately the responsibility of the Continental Power
distributor to insure the installer is qualified. Continental Power does not
evaluate installers as to their qualifications and only in the event of a
warranty claim will the qualifications of the installer be questioned. If
the installer is determined to not be qualified based upon local standards,
and the product failure is attributable to improper installation, the
product warranty will be void.
Installation requires opening up of the electrical panel, exposing
potentially dangerous high voltage wires. The unit comes with complete
installation instructions and installs in about 15-30 minutes as long as
there is space to add a 20A or 30A double pole breaker.
11. Why haven’t I heard of these products
until now?
That’s easy; two words “cost effectiveness”. Up until
recently, electric rates throughout America were cheap, costing us 2, 3 or 4
cents per kilowatt-hour. Now, electric rates are 8, 10, 12, 14, and 19 and
in some cases New York City is 22 cents per Kwh, and Hawaii is 33.5 cents
per Kwh. At the cheaper rates the PowerwoRx e3 didn’t make sense, but at the
current rates, it makes all the sense in the world.
12. What about PowerwoRx e3 for Surge
Protection?
One of the most important features of the PowerwoRx e3 is
the ability to protect the entire home against power surges. No longer is
there a need for so many individual surge protectors in the home. The
PowerwoRx e3 provides a broad range of protection for hardwired appliances
and most home electronics such as appliances, televisions, satellite
equipment, entertainment systems, etc using Industrial-Rated MOV’s. The unit
protects from power line surges as well as spikes caused by internal wiring
problems, loose connections and fluctuating demand from large motors such as
vacuum cleaners, heating and cooling equipment, etc.
13. Is the PowerwoRx e3 Energy Star
rated?
PowerwoRx e3 is not Energy Star rated because this type of
product does not fit into the Energy Star rating system.
14. Does the PowerwoRx e3 save any energy
on Resistive (non-motor) loads?
Resistive loads are equipment like incandescent lighting,
electric resistant heating, electric hot water heaters and electric ovens
and ranges. These devices require no “magnetic power” or “reactive power” to
operate; consequently they have no negative impact on Power Factor. The
energy savings capability of PowerwoRx e3 is achieved by storing the
reactive power which is typically wasted, and making it available for
reactive loads as required. There is no energy savings from PowerwoRx e3
being attached to a purely resistive load.
15. Can the PowerwoRx e3 cause my
electric bill to go up and does it use electricity when there is little or
no power demand?
The PowerwoRx e3 will not cause the electric meter to turn
on its own. The product does not “Use” energy – it captures energy from
reactive (motor) loads and then provides it back to the motors when they
need it.
16. Mounting Considerations – what if the
Residential Power Panel is flushmounted in an exposed area?
The PowerwoRx e3 is designed to be SURFACE MOUNTED only due
to its size (5” deep) and the surface mount mounting flange. Even if the
200A Power Panel is recessed and therefore flush mounted, the PowerwoRx e3
must still be surface mounted. With several feet of wire to tie into the
power panel, the PowerwoRx e3 can be mounted in a less obvious location.
Continental Power is developing a Flush Mount PowerwoRx e3 which will be
released in mid 2009.
17. What is the difference between
PowerwoRx e3 and other “Energy Savings” devices in the market?
There are over a dozen manufacturers of products that
“look” similar and make similar claims as PowerwoRx e3 regarding energy
savings. These products are in many cases less expensive so what is the
difference? The numerous “Power Savings Devices” on the market today consist
of two electrolytic capacitors in a box. The PowerwoRx e3 contains:
‐ 2 Electrolytic Capacitors
‐ 2 Harmonic Filters
‐ 2 MOV’s for Surge/Spike protection
‐ Additional electronics
A comparison of the two products is like comparing a golf cart and a sports
car. They are both considered transportation, but the sports car has a lot
more capability. As far as the literature goes, we all know that companies
make all kinds of claims. The PowerwoRx e3 has: 1. The best warranty in the
business (10 years)
2. A patent pending product developed by a team of MIT PhD’s with no other
product like it in the market
3. True Harmonic and Noise Filtration
4. True Surge & Spike Protection thanks to Industrial MOV’s
5. $25,000 warranty on connected appliances & electronics (see the end of
this document).
PowerwoRx e3 is a premium product that has premium features. Consequently
there is no comparable product on the market today that combines all these
features together.
There are several products on the market which provide individual features
much like the PowerwoRx e3: • Leviton 51120-1 Whole House Surge Suppressor,
1-Phase - single feature only for a home: $190
• Panamax MAX In-Wall Powerkit-Pro electronic Noise reduction unit, single
feature only- but not a whole-house unit: $299
• Facility Management Solutions Inc. Power factor correction device, single
feature only for a home: $349. Total cost of all 3 units: $838 and does not
have many of the features and benefits of the PowerwoRx e3 PowerwoRx e3 by
Continental Power Corporation - One unit, One installation and One low
price!
18. Does the PowerwoRx e3 consume energy
on its own?
No. The PowerwoRx e3 stores and supplies energy to the
electrical appliances in the home, it does not directly consume electricity.
Consequently, if an amperage meter (current probe) is placed on the
electrical lines leading to the PowerwoRx e3, a reading of 2.5-3 amps will
typically be shown. Even when no appliances are on, and therefore no
electricity is being consumed, there will still be current flow showing on
the current probe. Most assume this translates into 400W of energy being
“used” which on an annualized basis will cost the homeowner well over $100
per year at current electric rates. The truth is the PowerwoRx e3 “uses” no
energy. This is easily proven by turning off all electrical loads and going
to the Electric Meter and reading the consumption – the meter will not be
turning.
Another interesting test is to power a typical motor load like a bench
grinder. Use a current meter to measure the inrush current at start-up as
well as the steady-state current draw with and without the PowerwoRx e3 in
the circuit. With PowerwoRx e3 activated the current draw at start-up and
steady-state is typically reduced by over 30% thanks to the storing of the
reactive energy by the PowerwoRx e3.
19. Is a company by the name of EcoQuest
also selling the PowerwoRx e3?
EcoQuest International was granted exclusive distribution
rights of the PowerwoRx e3 in June 2008. In March 2009 EcoQuest was
foreclosed upon and another company purchased their assets. Because the new
owners chose not to continue with EcoQuest’s original contract, the new
EcoQuest no longer has rights to the PowerwoRx product line, Trade Mark or
any intellectual property. Any product EcoQuest may be selling under the
name PowerwoRx or another name is not based upon the 15 year history and the
thousands of satisfied customers.
Continental Power and its President Ed Kimmel has been a Power Conditioning
solutions provider for over 15 years. Continental Power owns the
intellectual property for PowerwoRx and there is only one way to obtain the
original PowerwoRxbrand, and that is through an authorized Continental Power
Distributor.
20. Some Power Company Representatives
have said Power Factor Correcting devices do not result in savings on the
customer’s electric bill – why?
The following response was provided by Ed Kimmel, President
of Continental Power:
I have fifteen years worth of data that I have shared with many engineers
that have made the same statement as above. I can tell you with 100%
confidence that our systems do reduce kWh and kW usage as well as reduce or
eliminate power factor penalties and reduce harmonic distortion.
As you know, no two electrical systems are the same, and no two utility
companies bill their customers exactly the same. There are electric utility
companies that charge more for kW and kWh usage than others. There are
electric utility companies that penalize a customer for poor power factor.
We see much larger reductions in usage in less efficient electrical system.
This is to be expected. We also see shorter payback periods and larger ROI’s
on electric utilities with higher rates than others.
Power factor is just one third of the technology incorporated in the
PowerwoRx Systems. We also install PowerwoRx for noise reduction and
protection, using MOV’s for surge and spike protection and harmonic
filtration for noise reduction.
In my fifteen years of installing our equipment I have never had a
dissatisfied customer. This I have done by being honest and upfront with
every customer I have had. We do reduce kW and kWh usage!
Ed Kimmel, President Continental Power Corporation
Most Power Companies do not charge a penalty for poor power factor. States
currently charging a residential Power Factor penalty include California and
Texas with several others adding this provision in 2009. Regardless of power
factor penalties, PowerwoRx can and does save energy, but is important to
understand that the amount of saved energy is dependent upon an almost
infinite number of factors so being able to predict what the savings is not
possible.
Some of the factors which can lead to power savings beyond reducing reactive
current by improving power factor include reductions in harmonicas as well
as surges & spikes. Feedback from customers has shown that the majority of
homeowners are seeing a savings on their electric bill, which is beyond the
benefits provided by increased equipment life from reduced harmonics and
surge and spike protection.
21. Are there any tax incentives for
buying the PowerwoRx e3 unit?
The PowerwoRx e3 could potentially qualify for a tax credit
under the Energy Policy Act of 2005 for tax year 2009. On September 17,
2008, The Energy Improvement and Extension Act of 2008 was passed by
congress as part of the $700 Billion financial bail-out plan. For a complete
summary of the bill see:
http://www.finance.senate.gov/sitepages/leg/LEG%202008/091708%20Staff%20Summary%20of%20the%20Energy%20Im
provement%20and%20Extension%20Act.pdf ) Here is the summary of the provision
which could potentially benefit homeowners:
§ 302 Extension & Modification of Credit for Energy-Efficiency Improvements
to Existing Homes The bill extends the tax credit for energy-efficient
existing homes for 2009 under Section 25C, and includes energyefficient
biomass fuel stoves as a new class of energy efficient property eligible for
a consumer tax credit of $300. The proposal also clarifies the efficiency
standard for water heaters. AUDIENCE: Consumers – Residential Homeowners
See IRS form 5695 http://www.irs.gov/pub/irs-pdf/f5695.pdf: What’s New for
2008 - Non-business energy property credit expired. You cannot take the
non-business energy property credit for property placed in service in 2008.
What’s New for 2009 - Non-business energy property credit available. The
non-business energy property credit will be available for property placed in
service in 2009. The credit is available for items such as high-efficiency
heating and cooling systems, water heaters, windows, doors, and insulation.
The amount of the credit will be limited by the amount of any non-business
energy property credit you took in 2006 or 2007.
Taxpayers should consult their tax professional or accountant for how the
PowerwoRx e3 can qualify for the Tax Credit and how much of the purchase
price and installation costs apply. Continental Power makes no claim
regarding an individual’s ability to receive a tax credit.
22. Can PowerwoRx e3 be mounted on the
outside of the building?
The standard PowerwoRx e3 case is a NEMA 1 and therefore
cannot be mounted outdoors or where exposed to moisture.
For exterior mounting order the PowerwoRx mounted in a NEMA 3 enclosure
23. Will PowerwoRx e3 affect X10 lighting
control systems, or Telephone or TV signals that are sent over the AC line?
Considering the Harmonic and Noise Filtration technology
used in the e3, this is a good question. Continental Power Corporation has
found that the harmonic filtration capability of the e3 WILL cancel out the
X10 and other control signals generated to communicate over the AC line.
Other systems include UPB (Universal Powerline Bus), CEBUS, Insteon and
LONWORKS to name a few. Consequently PowerwoRx e3 should not be used in
buildings where the AC line is being used to transmit lighting control,
telephone, TV or any other signal. A special PowerwoRx may be available in
the future which has the harmonic filtration removed. For now, contact
customer support and request a custom unit with the filters removed.
Note that most newer control systems are no longer using powerline data
transmission. This includes Insteon although they still provide downward
compatibility with X10 if necessary. The PowerwoRx will have no impact on
radio frequency (RF) control signals.
24. How can the PowerwoRx e3 provide the
exact amount of capacitance to correct the Power Factor in every home?
Understanding that the ideal power factor is 1, and that
poor power factor makes for an inefficient electrical distribution system
which translates into higher kVA as well as higher KWh. A common question is
“how can this device work in every home”? Some companies promote having an
electrician come out to a home, measure power factor and then create a
custom unit designed for that home. There are several reasons such a process
is not recommended:
1. The power factor will vary depending upon what appliances are running at
any given time. If the goal is to measure power factor, what appliances
should be turned on?
2. Years of experience has shown that the configuration of PowerwoRx
provides the optimum solution for the majority of homes. To produce a custom
solution adds significant cost and provides little if any payback.
3. Some are concerned that adding too much capacitance will put the home
into a lead condition (where the current waveform will lead the voltage
waveform). Again, this will be dependent upon what appliances are running at
any given time.
25. What meter can be used to verify
Power Factor and the other parameters required to evaluate my electrical
system?
There are dozens of meters on the market. At the high end
are meters like the Fluke model 435 that sells for $7000+. Continental Power
recommends a simple and basic Power Clamp Meter manufactured by Extech (P/N
380976) that includes the ability to measure Power Factor. This meter is
available several on-line merchants including
http://www.tequipment.net/Extech380976.html. Continental Power also
recommends the Fluke 1735. For more information go to:
http://www.transcat.com/Catalog/ and search on the Fluke model 1735
26. Some customers using other “Energy
Savings Devices” or basic capacitors in a box of which there are a dozen
products like this, have not experienced any energy savings. Does this mean
we will not see any energy savings with the PowerwoRx e3?
Typical “Energy Savings Devices” on the market contain
capacitors which place 30 micro farads on each phase (60 micro farads
total), potentially over correcting the system in many cases. The PowerwoRx
e3 only has 30 micro farads total, so overcorrecting will be rare with the
PowerwoRx e3. The advantage of the PowerwoRx e3 is the "synergy" of the 3
elements; surge and spike protection, harmonic filtering, and energy
savings. These synergies are vital together. The biggest difference between
the other devices and the PowerwoRx e3 is line conditioning. By cleaning up
the power the motors are more efficient and not as wasteful. Competitor’s
products overcorrect and in some cases no savings are realized. In these
cases installing a PowerwoRx resolved the problem. In no cases have we
experienced a customer’s electric bill going up due to the addition of
capacitance. There have been instances where a customer was saving energy
and then added a swimming pool and another unit was added to compensate, but
never the other way around.
Here is an excerpt from a university about using capacitors to increase
power factor:
"Adding too much capacitance can push the system from “lagging” to
“leading”; for example, adding too much capacitance may change the power
factor from 95% lagging to 95% leading. Although leading power factor does
not harm equipment, purchasing excess capacitors is expensive and serves no
useful purpose. In addition, some meters may read a leading 95% power factor
as 95% lagging. If so, you would not get credit for the power factor
correction from 95% to 100%. (Other utility meters would read a power factor
of 95% leading as 100%). Because of these reasons, we recommend a
conservative approach to power factor correction in which we never
overcorrect the power factor past 100%".
27. Does PowerwoRx e3 protect me from all
Surges and Spikes?
PowerwoRx e3 provides protection from Surges and Spikes
coming in on the main power line, as well as internal threats such as those
originating on a branch circuit. Although electrical appliances and
electronics in the branch circuit where the surge or spike originated are
exposed, once it reaches the main power panel where the PowerwoRx e3 is
connected the surge or spike will be arrested. Considering there are
typically 15-20 branch circuits in a typical home, the risk exposure is
minimal.
It should be understood there are two additional paths which a surge or
spike can enter the home from which are NOT protected by the PowerwoRx e3.
These two paths are your cable service and your phone service. The only way
to protect a
“surge back feed” through cable and phone wiring is to provide surge
protection on all three sources of entry that includes your electrical
system, cable system and phone system. Cable and Phone surge suppressors are
available from most electrical suppliers.
28. What causes powerline surges?
Surges can be classified as external and internal. External
surges are generally more severe than internal surges while internal surges
generally occur more frequently (about 80% of all surges are internal).
External surges are frequently caused by storms and normal power company
switching operations. Internal surges occur when equipment within the
building is cycling on and off.
29. How often do surges occur?
Very large surges occur infrequently (from a few times a
year in medium exposure areas to 40 times a year in high exposure areas)
since they are mainly storm induced (lightning and temporary interruptions
due to storm damage), but surges over 1000 volts may occur many times a day
since they are caused by normal equipment operation.
30. Can PowerwoRx e3 help resolve issues
with interruptions in electricity?
PowerwoRx is not a solution for brownouts or power
interruptions which last more than a few milliseconds. Many customers
complain of these types of power issues and the only solution for insuring
an uninterrupted supply of electricity is a UPS, or uninterruptable power
supply. These devises are much like what is used to power computers, just
much bigger. The PowerwoRx would be able to help resolve issues with
harmonics, noise, surges or spikes, but the PowerwoRx cannot help with power
dropouts that last more than 2 cycles or 1/30th of a second.
It should be noted that the major risk in a power dropout or brownout
condition is when the power comes back on. At the point at which power is
restored, all inductive loads come on at the same time, creating damaging
power spikes and distortion (noise and harmonics). The PowerwoRx provides
protection for this damaging condition.
31. How can PowerwoRx e3 help reduce
surges and spikes if it is merely connected to the panel and only has 12
gauge wiring?
The surge & spike protection is accomplished by a device
called an MOV (Metal Oxide Varistor). When the voltage rises significantly
above the rated voltage (+20%), the MOV turns on and the voltage is shunted
to ground, insuring the system doesn’t see the spike or surge. By definition
this is considered a spike arrestor. The other components in the PowerwoRx,
the harmonic filters and electrolytic capacitors act as suppressors by
capturing the small surges and spikes that come down the line.
Confusion often occurs because logic would say that the unit should be
connected in series like a fuse or breaker, so when there is a surge or
spike the PowerwoRx would open the line. This line of thinking is logical
but that is not how this device or others like it operate.
Regarding the 12 gauge wiring, logic would also say that no wire that small
could handle 40,000 amps (max rating of the PowerwoRx). What needs to be
understood is the rating is based upon a very short spike, literally
milliseconds in length which is occurs in a lightning strike. The product
cannot handle a sustained over voltage but such occurrences are extremely
uncommon.
32. Can PowerwoRx e3 be used with a
back-up power generator?
Back-up power generators are becoming more and more common
in home applications as well as commercial, often run off propane or natural
gas as a protection for power outages. PowerwoRx is an excellent addition to
a system which incorporates a back-up generator for several reasons:
‐ In the switchover process which is typically automatic, as the generator
comes on line and the relay which connects the generator to the main panel
is closed, typically a spike in power is induced. The PowerwoRx e3 will
clamp this spike, thereby protecting appliances and electronics.
‐ Power supplied by back-up generators is typically not clean – meaning the
noise and harmonic content is high. The PowerwoRx e3 will reduce the overall
noise and harmonics.
‐ Back-up generators are typically not sized to run all appliances. In some
instances loads will exceed the rated output. PowerwoRx reduces KVA demand
from the generator by supplying the reactive power to inductive loads. This
means that a customer can realize additional capacity from their generator
they would not have had without PowerwoRx e3.
‐ PowerwoRx will help to reduce I2R losses when powering inductive loads.
One note of caution: Most back-up generators are connected to a sub panel
which powers a select group of circuits so as to not overload the generator.
The installing electrician must take this into account. If the PowerwoRx e3
is placed on the main panel and a contactor to isolate a sub panel for
back-up power loads is used, the PowerwoRx e3 will not be connected when the
generator is engaged.
In no way will there be any detrimental effects to either the PowerwoRx e3
or the generator. We highly recommend the PowerwoRx e3 for emergency backup
generator applications.
33. Can PowerwoRx e3 be used with Solar
Panel/Wind Turbine installations and/or Reverse Metering?
PowerwoRx e3 is an excellent addition to any solar
panel/wind turbine installation regardless of the configuration including
the use of Reverse Metering (where electricity is fed onto the grid by the
user). Some common configurations are:
‐ Solar or wind is used to supplement the systems energy needs
‐ Solar or wind is connected to the grid via a bi-directional electric meter
(Reverse Metering)
‐ The system is off grid and relies on 100% solar energy for all the energy
needs All three of the PowerwoRx technologies benefit a system which
incorporates solar and wind energy generation:
‐ Surges & spikes are more frequently internally generated than external.
Solar Power Center protection is accomplished by a device called an MOV
(Metal Oxide Varistor). When the voltage rises the PowerwoRx prevents the
spike from potentially damaging the expensive electronics including the
Inverter.
‐ Harmonics are more prevalent in a solar generated power system due to the
nature of how the AC waveform is created by the Inverter. These Harmonics
waste electricity, are damaging to appliances and electronics. PowerwoRx
significantly reduces Harmonics and Noise in the system
‐ Improved Power Factor translates into reduced I2R losses, increasing
system capacity and reducing energy use
34. If the PowerwoRx is hit with such a
large spike that it sacrifices itself, will the electricity still be on? Is
the home still protected?
The PowerwoRx is connected in parallel (not like a fuse
which is in series) so in no case will the supply of electricity to the home
be affected. If the home is hit with a surge & spike of great magnitude like
what would occur from a lightning strike in the area, and the PowerwoRx e3
sacrifices itself, the result is the PowerwoRx will no longer be
operational. This is indicated by:
1. One or both lights will no longer be lit.
2. There is typically a strong smell of a damaged electrical device. This is
normal and indicates the unit has sacrificed itself in order to protect your
homes electronics and appliances.
In either case it is just as if the PowerwoRx had been disconnected from the
panel, meaning the home will no longer be completely protected and a
replacement unit should be ordered immediately. Remember, PowerwoRx carries
a 10-year warranty, and the only limitation is the product must be installed
by a licensed qualified electrician.
35. What happens if a lightning spike
comes into a building through a window air conditioner or some path other
than the electrical line?
Surges and spikes often come through paths other than the
main incoming electrical line. The PowerwoRx is effective at arresting these
surges and spikes but the owner must realize that the surge or spike must
reach the PowerwoRx. This means that any electrical appliances or devices on
the branch circuit where the surge or spike originates will potentially be
damaged since they are located before the PowerwoRx. For this reason
point-of-use surge suppressors should be incorporated on very costly or
sensitive electronics.
36. When a Demo Case is being used in a
home with PowerwoRx Installed, why does the meter still show the same as
before the PowerwoRx was installed in the home?
The PowerwoRx Demonstration Case is an excellent way to
show exactly what the PowerwoRx is doing with regards to a motor load. When
first turning on the demo case we see that the current coming to the case
(what we call the SUPPLY side) is the same as what is going to the motor
(LOAD side). Once the PowerwoRx in the case is turned on, the current coming
into the case (supply side) drops, yet the current going to the motor (load
side) is the same. This is because on every cycle of the AC waveform,
literally 60 times per second, the PowerwoRx is storing reactive current and
supplying it to the motor when it needs it. In essence the PowerwoRx is
recycling energy which otherwise would have been wasted. When then the
PowerwoRx in the demo case was turned off, the PowerwoRx in the home was
storing this reactive energy and supplying it back to the motor. Since the
motor always received the current necessary to run, approximately 1.2A, the
meters don’t show any signs of a PowerwoRx in the home. A person would have
to go back to the 200A electric panel and take an inductive current meter
around the incoming power line at the top of the panel to see the effects of
the PowerwoRx mounted in the home. This is a typical method to show that the
PowerwoRx is not only working, but is having a very positive effect. But
when the PowerwoRx is turned on in the demo case, now the PowerwoRx closest
to the load takes over the responsibility to store and supply (recycle) the
otherwise wasted reactive current, which is why we see a drop in the current
in the demo case. Even if a home 5 PowerwoRx installed it would be the same,
because the PowerwoRx in the case will always be the closest and therefore
it will always be the device to recycle the current.
37. The electrician who installed our
PowerwoRx tested the electrical system and said the PowerwoRx is making no
difference in the current being used. How can I verify the PowerwoRx is
operating?
Adding capacitance will always change the amount of current
coming into the electrical panel as long as there is at least one inductive
load turned on. With inductive loads activated, the Power Factor will always
change and there is never a case where the amount of current being drawn
from the utility or generator will stay the same.
The confusion is typically where the measurements are made. A common mistake
is placing the clamp meter around the wires going to a load like the Heat
Pump. As the previous question details, the current on the load side will
always be the same.
We suggest the installer verify PowerwoRx is properly operating. By reading
the current being drawn on either L1 or L2, and then switching the PowerwoRx
on and off will show a difference in current. The percentage difference
between current draw with PowerwoRx on and PowerwoRx off is dependent on
initial Power Factor and the number of inductive loads.
38. How to determine if the PowerwoRx e-3
unit is working properly?
Using a typical current clamp meter measure the current
going to the RED and BLACK wires on the PowerwoRx unit. An installed and
operational PowerwoRx e3 unit should "draw" (but not consume) approximately
2.75 amps. Another way to show proper operation is using a Power Factor
meter on the lines feeding the panel which the unit is installed. With
inductive loads connected to the panel and running, turn the units breaker
on and then off. You will see the overall current drop with the unit on due
to a reduction in reactive current. You will also see the Power Factor (PF)
increase with the unit on and decrease with the unit off. Be aware that if
little or no inductive loads are operating when doing this test, the meter
may show what appears to be a decrease in Power Factor. If you look closely
at the meter, you will see that the Power Factor display is showing that the
PF went from lagging to leading. We suggest turning on some inductive loads
so the PF stays lagging but shows an increase.
It is important to remember that Power Factor measurements are a “snapshot”
in time. On a residence, don’t be looking for the PF to go from 78% to 96%.
The PowerwoRx e3 has a fixed amount of capacitance based upon average
consumption for a typical 200A residential application. From studies of many
homes, we know the PowerwoRx e3 will raise the average PF to approximately
95%. Some electricians have voiced concern that during their measurements,
the Power Factor rose up only 5 or 10% and is still below 90%. Again, this
is a snapshot, and in most cases the measurement was taken with the majority
of inductive loads turned on. Our goal when using a Current Meter/Power
Factor Meter to validate that the unit is working and to show the customer
that when the unit turns on the current drops and Power Factor goes up. The
amount of decrease/increase is inconsequential for the purpose of the test.
39. What does the number on the e-CoMeter
indicate regarding noise and harmonics?
The e-CoMeter has been developed by Continental Power to
show the overall harmonic and noise level on the AC line. The actual reading
of 0-1999 does not correspond to any specific value such as volts or
frequency, but should be considered a relative level of harmonics and noise.
By taking an initial reading, the distributor can show the building owner or
occupant the current reading - the lower the number, the better power
quality. A good demonstration to the customer is to show what the current
level is and then plug in a PowerwoRx e3 with a standard ‘B’ plug connected
into the same outlet. You will typically see a reduction of 60-90%. If the
meter reads 2---, or shows no numbers, the meter is in an “Over Range”
condition, meaning the actual value is above the maximum displayable value
of 1999. In these cases the distributor should point out to the customer
that the Noise and Harmonics are exceptionally high and action should be
taken to protect their electronics and appliances.