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10.8 AC CURRENT METERING AND PULL-OUT TEST
10.8 AC CURRENT METERING AND PULL-OUT TEST
10
1. Connect as for Collector Ring or Brushless PF Test.
a) CONFIGURATIONS
Program as defaults shown in Section 5.4: CONFIGURATIONS MENU on page 5–12 except for the following:
•
MOTOR: Collr-Ring (if testing for Collector-Ring application)
b) SETPOINTS
Program as defaults shown in 5.2: SETPOINTS MENU on page 5–2 except for the following:
•
FL AMPS: 50
1. Apply control power to relay and wait for self test diagnostic to complete. Should get SPM READY mes-
sage and TRIP relay should close.
2. Turn on current source (and function generator for Collector-Ring).
3. Open MX switch
4. FAR contact should close followed by FCX contact. FIELD IS APPLIED message should momentarily flash
on screen.
5. AC Amps metered value will now be displayed along with other metered values.
6. Vary current as in table below and record reading.
7. At greater than 4x motor full load a pull out trip should occur.
Table 10–7: AC CURRENT METERING AND PULL-OUT RESULTS
INPUT AMPS
1
3
5
10
25
10-
8
Courtesy of store.ips.us
EXPECTED
ACTUAL
READING
READING
10
30
50
100
PULL-OUT TRIP
SPM Synchronous Motor Protection and Control
10 FUNCTIONAL TESTS
10.8.2 RELAY PROGRAMMING
TOLERANCE
(AC AMPS)
±1
±1
±1
±3
N/A
10.8.1 SETUP
10.8.3 TEST
GE Multilin
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