TP-7045 3/18c 55Section 9 Paralleling Generator Sets
Section 9 Paralleling Generator Sets
Accidental starting.
Can cause severe injury or death.
Disconnect the battery cables before
working on the generator set.
Remove the negative (--) lead first
when disconnecting the battery.
Reconnect the negative (--) lead last
when reconnecting the battery.
WARNING
Disabling the generator set. Accidental starting can
cause severe injury or death. Before working on the
generator set or equipment connected to the set, disable the
generator set as follows: (1) Move the generator set master
switch to the OFF position. (2) Disconnect the power to the
battery charger. (3) Remove the battery cables, negative (--)
lead first. Reconnect the negative (--) lead last when
reconnecting the battery. Follow these precautions to prevent
starting of the generator set by an automatic transfer switch,
remote start/stop switch, or engine start command from a
remote computer.
Hazardous voltage. Moving parts.
Will cause severe injury or death.
Operate the generator set only when
all guards and electrical enclosures
areinplace.
DANGER
Grounding electrical equipment. Hazardous voltage will
cause severe injury or death. Electrocution is possible
whenever electricity is present. Ensure you comply with all
applicable codes and standards. Electrically ground the
generator set, transfer switch, and related equipment and
electrical circuits. Turn off the main circuit breakers of all
power sources before servicing the equipment. Never contact
electrical leads or appliances when standing in water or on wet
ground because these conditions increase the risk of
electrocution.
Introduction
Read and follow the safety precautions included in this
manual. Pay attention to the decals on the equipment
and follow the instructions below.
D All personnel involved in handling, site preparation,
installation, testing, operation, and maintenance
should be thoroughly familiar with the information in
this manual and the customer drawings provided
before working on this equipment.
D Never make interlocks inoperative or operate the
equipment with any safety barriers removed.
D Always assume that all high-voltage parts are
energized until it is certain that they are de-energized.
D Use only test equipment rated for the service
intended.
D Check interconnection diagrams and make sure
there are no potential backfeed sources.
D Never disconnect the main trip source of energized
equipment.
D Use out-of-service tags and padlocks when working
on equipment. Leave tags in place until the work is
completed and the equipment is ready to be put back
into service.
D The complete a ssembly arrangement determines if
the top or bottom contacts are the line side; both can
be energized when the circuit breaker is removed
from the compartment.
D Do not use liquid fire extinguishers or water on
electrical fires. Before extinguishing fires within the
assembly, be absolutely certain that the main power
source is disconnected and the main and all feeder
breakers are tripped.
The Decision-Makerr 3500 generator set controller
provides generator set advanced control, system
monitoring, and system diagnostics for paralleling
multiple generator sets.
The Decision-Makerr 3500 interfaces the generator set
to other power system equipment and other network
management systems using standard industry network
communications.
The controller uses unique software logic to manage
sophisticated functions, such as voltage regulation,
synchronizing and load-sharing controls, and protective
relays for paralleling u p to eight generator sets.
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