Product Manual

TP-6946 3/16 43Section 5 Functional Tests
Section 5 Functional Tests
5.1 Introduction
Be sure to perform all of the functional tests described in
this section before putting the transfer switch into
operation.
Note: Perform these checks in the order presented to
avoid damaging the ATS.
Read all instructions on the labels affixed to the
automatic transfer switch before proceeding.
To complete the installation, follow the instructions in
this section to:
D Set the time, date, and exercise schedule on the
controller.
D Perform the system startup procedures listed on the
startup form.
D Register the unit using the Kohlerr online Warranty
Processing System.
5.2 Manual Operation Test
If you have not already done so, test the power switching
device manual operation before proceeding to the
voltage check and electrical operation test.
Note: Disable the generator set and disconnect the
power by opening the circuit breakers or switches
for both sources before manually operating the
transfer switch.
Follow the instructions in Section 2 .7 to check the
transfer switch manual operation.
A power switching device in normal and serviceable
condition transfers smoothly without binding when
operated manually. Do not place the transfer switch into
service if the power switching device does not operate
smoothly without binding; contact an authorized
distributor/dealer to service the contactor.
5.3 Ground Fault Site Test
Requirements
Per NEC and UL1008, a ground fault protected system
must be performance tested when first installed onsite.
Confirm and record the actual trip setpoints in the
Performance Test Form in Section 8. The form must be
available to the inspection authority having jurisdiction
upon request.
5.4 Performance Test
Qualified field service technicians require a calibrated
current injection test apparatus and must be
knowledgeable in power switching unit testing to
provide primary neutral CT injection up to or greater
than the trip setpoint as selected by the responsible
party. As indicated in the NEC, the maximum setting of
the ground fault protection is 1200 amps, and the
maximum time delay is 1 second for ground faults equal
to or greater than 3000 amps.
Contact the inspection authority to confirm actual test
requirements as these may vary by region or local code
requirements.
Evaluate the interconnected system to ensure
compliance with the appropriate schematic drawings.
Determine the proper location of sensors and power
cabling. Verify the grounding points of the system to
determine that ground paths do not exist that would
bypass the sensors. The use of high-voltage testers and
resistance bridges may be required. Use a coil around
the sensors to generate a simulated fault current.
Observe the reaction of the circuit-interrupting device
for correct response. Record the results of the test on
the form provided in Section 8.