HIGH VOLTAGE MOTOR CONTROL GEAR ELECTRICAL FIELD TEST

Yes

No

1.      Inspect primary and auxiliary equipment for physical damage, missing parts and proper assembly.

2.      Compare equipment nameplate data with one-line, design plans and starter schedule.

3.   Check nameplate voltage and current ratings for
breakers, contactors and primary and secondary fuses.

4.
Compare overload protection with motor full load
current for proper sizing.

5.
Verify component sizing versus load.

6.
Check contactor finger stab alignment and tightness
on draw-out designs.

7.
Protective grounding is correctly installed and
connected to main ground.

8.
Remove shipping and blocking material from starter
and vertical sections.

9.
Check draw-out cubicles and wire ways for
cleanliness.

Yes

No

1.
Torque all accessible bolted connections.

2.
Check insulators and the insulation system.

3.
Inspect main bus and bus taps to switches and
potential transformers.

4.
Manually operate breakers and contactors. Check for
freedom of movement of all moving parts.

5.
Check for main contact pressure alignment and full
contact area on contactors.

6.
Check operation of door mechanical interlocking
linkage.

Yes

No

1.
Check wiring point to point and megger.

2.
Check wire markers, and that terminal block
connections are secure and properly identified.

3.
Megger and high potential test main bus phase to
ground and phase to phase.

4.
Measure bus resistance and joint contact resistance.

5.
Inspect all protective relays and devices for
correct operation and settings.

6.
Check to see that space heaters are connected and
operable.

7.
Megger outgoing circuits.

8.
Check PT and CT rating, ratio, and insulation
resistance, test in accordance with procedures.

9.
Check calibration of voltmeters and ammeters.

10.
Check rating of all fuses.

11.
Verify relay trip/alarm functions.

12.
Verify motor ground fault protection.

13.
Check effectiveness of tripping devices.

14.
Megger contactors and circuit breakers phase to
phase and phase to ground.

15.
Measure the contact resistance of each contactor and
circuit breaker.

16.
Check the Phase Rotation of the voltage on the main
bus.

Equipment Identification/manufacturer

Serial number/model number

Rated Voltage

Rated current

Interrupting Rating

ITEMS
TESTED

MEGGER
TEST

DC
HI-POT LEAKAGE

Insulation
resistance in Meg-ohms

Current
in micro-amps

Phase A to Ground

Phase B to Ground

Phase C to Ground

Phase A to Phase B

Phase B to Phase C

Phase C to Phase A

FEEDER NO.

Breaker or
Contactor No.

Phase A Line to
Load micro-ohms

Phase B Line to
Load micro-ohms

Phase C Line to
Load micro-ohms

DEVICE NO.

HORSE POWER

FULL LOAD
CURRENT

MOTOR PROTECTION
RELAY TYPE

RATING

FEEDER NO.

FEEDER
INSULATION RESISTANCE