Generac Power Systems 10 kW LP System functional tests Part, Manual Transfer Switch Operation

Section 5.1

System functional tests

Part 5

Operational tests and adjustments

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

LOAD CONNECTED TO

UTILITY POWER SOURCE

MANUAL

TRANSFER

HANDLE

TRANSFER

SWITCH

OPERATING

LEVER

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).

LOAD CONNECTED TO

STANDBY POWER SOURCE

TRANSFER

SWITCH

OPERATING

LEVER

MANUAL

TRANSFER

HANDLE

Figure 1. Manual Operation “V-Type” Switch

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