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10. Typical Connections To Supply Standby Power
Have only qualified per-
sons perform these
connections according
to all applicable codes
and safety practices.
Properly install and
ground this equipment
according to its Own-
er’s Manual and nation-
al, state, and local
codes.
Customer-supplied equip-
ment is required if genera-
tor will supply standby
power during emergen-
cies or power outages.
1 Utility Electrical Service
2 Transfer Switch
(Double-Throw)
Switch transfers the electrical
load from electric utility ser-
vice to the generator. Transfer
load back to electric utility
when service is restored.
Install correct switch (custom-
er-supplied). Switch rating
must be same as or greater
than the branch overcurrent
protection.
3 Fused Disconnect Switch
Install correct switch (custom-
er-supplied) if required by
electrical code.
4 Welding Generator Output
Generator output voltage and
wiring must be consistent with
regular (utility) system voltage
and wiring.
Connect generator with tem-
porary or permanent wiring
suitable for the installation.
Turn off or unplug all equip-
ment connected to generator
before starting or stopping en-
gine. When starting or stop-
ping, the engine has low speed
which causes low voltage and
frequency.
5 Essential Loads
Generator output may not
meet the electrical require-
ments of the premises. If gen-
erator does not produce
enough output to meet all re-
quirements, connect only es-
sential loads (pumps, freez-
ers, heaters,etc. − See Sec-
tion 2).
Transfer Switch
Essential
Loads
Fused
Disconnect
Switch
(If Required)
Utility
Electrical
Service
1234
5
Properly install and ground this equipment according to
its Owner’s Manual and national, state, and local codes.
Welding
Generator
Output
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