Input (or tap) switch verification, Input (or tap) switch verification -15, Table 5-5. restraint pickup test: 1 a, 50 or 60 hz – Basler Electric BE1-87T User Manual
Page 111
9171300990 Rev V
BE1-87T Test Procedures
5-15
Step 8. If the relay has more than two inputs, reconnect the relay by substituting the Input 3 terminals
for the Input 2 terminals. Then repeat step 6 and 7 using the Input 2 values of Table 5-5 for
Input 3.
If there are more than three inputs (as in some single-phase units), continue substituting every
higher-numbered input for Input 2, each time comparing the input under test against Input 1 as
in Steps 6 and 7.
Step 9. Three-Phase Units Only: Repeat Steps 6, 7 and 8 for phases B and C. (Refer to Figures 5-1
through 5-4, as appropriate, for the terminal numbers of the phase B and C inputs of the relay
under test.)
Table 5-5. Restraint Pickup Test: 1 A, 50 or 60 Hz
Input 1, Tap = 2.0 Input 2, Tap = 3.8
Increasing Input 1 Decreasing Input 2
% Slope Amperes X Tap Amperes X Tap
Trip Amperes
Trip Amperes
15
0.4
1
0.76
1
0.540 ±0.052
0.494 ± 0.050
15
0.8
2
1.52
2
0.941 ±0.076
1.254 ± 0.095
15
1.2
3
2.28
3
1.412 ±0.105
1.938 ± 0.136
15
2.0
5
3.8
5
2.353 ±0.161
3.230 ± 0.214
25
0.4
1
0.76
1
0.540 ±0.052
0.494 ± 0.050
25
0.8
2
1.52
2
1.067 ±0.084
1.140 ± 0.088
25
1.2
3
2.28
3
1.600 ±0.116
1.710 ± 0.123
25
2.0
5
3.8
5
2.667 ± 0.180
2.850 ± 0.191
50
0.4
1
0.76
1
0.800 ± 0.068
0.380 ± 0.043
50
0.8
2
1.52
2
1.600 ± 0.116
0.760 ± 0.066
50
1.2
3
2.28
3
2.400 ± 0.164
1.140 ± 0.088
50
2.0
5
3.8
5
4.00 ± 0.260
1.900 ± 0.134
30
0.4
1
0.76
1
0.571 ± 0.054
0.494 ± 0.050
30
1.2
3
2.28
3
1.714 ± 0.123
1.596 ± 0.116
35
0.4
1
0.76
1
0.615 ± 0.057
0.494 ± 0.050
35
1.2
3
2.28
3
1.846 ± 0.131
1.482 ± 0.109
40
0.4
1
0.76
1
0.667 ± 0.060
0.456 ± 0.047
40
1.2
3
2.28
3
2.000 ± 0.140
1.368 ± 0.102
55
0.4
1
0.76
1
0.889 ± 0.073
0.342 ± 0.041
55
1.2
3
2.28
3
2.667 ± 0.180
1.026 ± 0.082
Input (or Tap) Switch Verification
Each input is scaled using a combination of two rotary switches. Verify the switches as follows.
Step 1. Determine the Sensing Input Type (the first digit of the Style Number shown on the front panel):
A
Single-phase, two inputs
B
Single-phase, three inputs
C
Single-phase, four inputs
D
Single-phase, five inputs
E
Three-phase, two inputs each phase
G
Three-phase, three inputs each phase