Standby
Generators
Compare Generators with UPS
A generator is a portable unit (though it can be heavy -
up to 200 pounds) driven by an internal combustion engine. The generator
is connected to the home's electric service panel by some type of transfer
switch. The size (maximum output) of your generator, and therefore the
costs you might incur in purchasing, installing and operating it, will
be determined largely by the type of electric loads (for example, heating
plant, water pump and refrigerator) you plan to use it for. Sizing a generator
properly is critical for reliability.
Important considerations
when choosing a generator:
-
Fuel: Typically, a generator runs on gasoline, diesel fuel
or propane. Availability and cost of each of these fuel types should be
considered when shopping for a generator.
-
Maintenance: Maintaining a generator can become a year-round
obligation, even though the generator most likely will be used only for
short periods. For gasoline and diesel generators, the fuel must
be kept fresh, so fuel stabilizers are recommended for extended periods
of inactivity, and oil must occasionally be changed.
-
Ventilation: Another critical factor is ventilation. Since
generators burn fuel, they produce exhaust, which must in all circumstances
be vented outside of the building.
-
Noise: The amount of noise produced by a generator varies
with the size and type of the unit. Siting the unit to minimize the effects
of noise on the owners and to provide adequate ventilation for exhaust
are important decisions affecting satisfactory use.
-
Starting Mechanism: There are three options for the engine's
starting mechanism: (1) manual start with a pull cable (like starting
a lawnmower); (2) electric start (which is done by pressing a start button
connected to a battery); (3) an automatic, or "smart" transfer
switch that can tell when power has been lost and can turn the generator
on.
PROTECT
YOUR CO-OP'S LINE WORKERS
WITH TRANSFER SWITCH:
Generators can pose a hazard for line crews unless
there is a properly installed "double-pole, double-throw" transfer
switch that ensures that power produced by a generator does not back feed
onto the utility's electric system. A worker repairing a damaged power
line could be electrocuted by a charge carried over wires he thought were
dead..
Please let us know if you do own and use a generator so that we
can make a note of it on your account record. The line worker's greatest
fear is the generator s/he doesn't know about, which could energize the
line unexpectedly and put his/her life in peril.
Members installing electric generators are required to notify the Co-op
about their equipment, per policy bulletin #37. The Co-op will inspect
generation equipment to assure compliance with safety codes.
How to install a Generator Properly An article from Popular Mechanics,
March 1998
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