Switch Input; Analog Output - GE 239 Instruction Manual

8 TESTING
1. To verify the operation of each 239 switch input, go to $ 67$786?6:,7&+ 67$786 and with the
3
MESSAGE and
each switch input and note that the display reflects the present status of the input terminals. Ver-
ify the results with the table below.
Table 8–5: SWITCH INPUT TEST
SWITCH NAME
SW.1 ACCESS
SW2. EMERG RESTART
SW3. EXTERNAL
RESET
SW4. OPTION 1
SW5. OPTION 2
1. Alter the following setpoints:
6  6(783?$1$/2* 287387?$1$/2* 287387 5$1*(  0$
6 7(67,1*?$1$/2* 287387 6,08/$7,21?6,08/$7,21 21
2. As shown in Figure 8–1: SECONDARY INJECTION TEST SETUP on page 8–1, connect a DC
ammeter between terminals 18 and 19.
3. Using the setpoint 6 7(67,1*?$1$/2* 287387 6,08/$7,21?$1$/2* 287387 )25&(' 72 force the out-
put to various levels shown in the table below and view the results on the DC ammeter. Verify the
meter results with expected results shown in the table below. If the 239 is turned off or 15 min-
utes have expired since 6 7(67,1*?$1$/2* 287387?6,08/$7,21?6,08/$7,21 was turned on this
8 setpoint will automatically turn off to disable analog output simulation. This setpoint must be
turned on to continue further testing if needed.
OUTPUT
FORCED TO
OFF
0
40
70
100
110
8-6
Courtesy of NationalSwitchgear.com
4
MESSAGE keys, view the status of each switch input one at a time. Open and close
INPUT TERMINAL
STATUS
OPEN
SHORTED
OPEN
SHORTED
OPEN
SHORTED
OPEN
SHORTED
OPEN
SHORTED
EXPECTED ACTUAL
OUTPUT OUTPUT (mA)
4
4
10.4
15.6
20
21.6
239 Motor Protection Relay
EXPECTED
DISPLAY READING
OPEN
CLOSED
OPEN
CLOSED
OPEN
CLOSED
OPEN
CLOSED
OPEN
CLOSED
8 TESTING

8.8 SWITCH INPUT

8.9 ANALOG OUTPUT

GE Multilin