1 system functional tests, Introduction, Manual transfer switch operation – Generac Power Systems 8 kW LP User Manual

Page 150: Electrical checks

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introduction

Following home standby electric system installation
and periodically thereafter, the system should be
tested Functional tests of the system include the
following:

• Manual transfer switch operation.
• System voltage tests.
• Generator Tests Under Load.
• Testing automatic operation.

Before proceeding with functional tests, read instruc-
tions and information on tags or decals affixed to the
generator and transfer switch. Perform all tests in the
exact order given in this section.

manual tranSFer SWitch operation

“W/V-TYPE” TRANSFER SWITCHES:

1. On the generator panel, set the AUTO-OFF-MANUAL

switch to OFF.

2. Turn OFF the utility power supply to the transfer switch

using whatever means provided (such as a “Utility” main

line circuit breaker).

3. Set the generator main line circuit breaker to OFF

(or open).

*

DaNGEr: BE surE to turN off all

PoWEr VoltaGE suPPliEs to tHE
traNsfEr sWitcH BEforE attEmPtiNG
maNual oPEratioN. failurE to turN
off PoWEr VoltaGE suPPliEs to
tHE traNsfEr sWitcH maY rEsult

iN DaNGErous aND PossiBlY lEtHal
ElEctrical sHocK.

4. Remove the manual transfer handle from the enclosure.
5. Place open end of the manual transfer handle over

transfer switch operating lever.

6. To connect LOAD terminal lugs to the utility power

source, move, the handle upward.

7. To connect LOAD terminals to the standby power source,

move the handle downward.

8. Actuate the switch to UTILITY and to MANUAL several

times. Make sure no evidence of binding or interference

is felt.

9. When satisfied that manual transfer switch operation

is correct, actuate the main contacts to their UTILITY

position (Load connected to the utility power supply).

electrical checkS

Complete electrical checks as follows:

1. Set the generator main circuit breaker to its OFF (or

open) position.

2. Set the generator AUTO-OFF-MANUAL switch to the

OFF position.

3. Turn off all loads connected to the transfer switch

Terminals T1 and T2.

4. Turn on the utility power supply to the transfer switch

using the means provided (such as a utility main line

circuit breaker).

Figure 1. Manual Operation “V-Type” Switch

MANUAL
TRANSFER
HANDLE

TRANSFER
SWITCH
OPERATING
LEVER

MANUAL
TRANSFER
HANDLE

TRANSFER
SWITCH
OPERATING
LEVER

LOAD CONNECTED TO
UTILITY POWER SOURCE

LOAD CONNECTED TO
STANDBY POWER SOURCE

Part 5

OPERATIONAL TESTS

AND ADJUSTMENTS

sEctioN 5.1

sYstEm fuNctioNal tEsts

Page 148

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