Step 7. Slowly increase the T1 voltage until the OVER PICKUP indicator and the timed and
instantaneous overvoltage test indicators illuminate. Measure and record the voltage.
RESULT: This voltage is between 156.8 and 163.2 Vac for Sensin
g Input Range 3 or between 313.6
and 326.4 for Sensing Input Range 4.
NOTE
Step 8 applies only to BE1-59 relays with Sensing Input Range 3 or 4.
Step 8. Decrease the T1 voltage to 50 Vac. Turn all overvoltage pickup controls fully CCW. Slowly
increase the T1 voltage until the OVER PICKUP indicator and the timed and instantaneous
overvoltage test indicators illuminate. Measure and record the voltage.
RESULT: The voltage is between 53.9 and 56.1 Vac for Sensing Input Range 3 or between 107.8 and
112.2 Va
c for Sensing Input Range 4.
This concludes the pickup test.
Timing
The following procedure verifies timing characteristics.
Step 1. Connect the test circuit shown in Figure 5-2. Outp
ut terminal connections are dependent on
the function to be tested. See Table 5-1.
Step 2. Adjust the under or overvoltage pickup settings an
d the T1 and T2 tap voltage levels as
indicated in Table 5-2 below for the function being tested.
Table 5-2. T1 and T2 Tap Voltage Levels
T2
Sensing
Range
Over
Pickup
Under
Pickup
T1
Voltage
Over Under
5-4 BE1-27/59 Testing 9170600990 Rev H
2 30
—
20 40
—
3 120 100 110 152 68
4 240 200 220 304 136
Step 3. Set the time delay control for the function be
ing tested to 00 (50 ms or less). Press and
release S2 to assure that K1 is de-energized. Reset the timer. Press and release S1.
RESULT: The timer displays a response time, dependent on timing type, as indicated in Column 1 of
Table 5
-3.
Table 5-3. Timing Test Results
Timing Type Column 1 Column 2
Instantaneous 50 ms or less 50 ms or less
Definite 0.050 to 0.150 sec 9.702 to 10.098 sec
Under Over Under Over
Short Inverse 0.087 to 0.187 sec 0.092 to 0.192 sec 6.231 to 6.687 sec 6.557 to 7.247 sec
Medium Inverse 0.292 to 0.392 sec 0.307 to 0.407 sec 24.626 to 27.218 sec 25.991 to 28.727 sec
Long Inverse 0.553 to 0.653 sec 0.583 to 0.683 sec 49.185 to 54.363 sec 51.895 to 57.358 sec
Step 4. Set the time delay control for the function b
eing tested to 01 (0.1 seconds). Press and
release S2 to assure that K1 is de-energized. Reset the timer. Press and release S1.
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