41-116K
11
Type COV Voltage
Controlled Overcurrent Relay
ENERGY REQUIREMENTS
COV-8 AND COV-9 OVERCURRENT UNITS
60 HZ VOLT AMPERES ** (x
∆
FOR 50 Hz)
Ampere
Range
Tap
Continuous
Rating
( Amperes )
One Second
Rating*
( Amperes )
Power
Factor
Angle Ø
At
Tap Value
Current
(
∆
=.86)
At 3
Times
Tap Value
Current
(
∆
=.88)
At 10
Times Tap
Value
Current
(
∆
=.90)
At 20
Times Tap
Value
Current
(
∆
=.91)
0.5/2.5
.05
2.7
88
72
2.38
21
132
350
0.6
3.1
88
71
2.38
21
134
365
0.8
3.7
88
69
2.40
21.1
142
400
1.0
4.1
88
67
2.42
21.2
150
440
1.5
5.7
88
62
2.51
22
170
530
2.0
6.8
88
57
2.65
23.5
200
675
2.5
7.7
88
53
2.74
24.8
228
800
2/6
2
8
230
70
2.38
21
136
360
2.5
8.8
230
66
2.40
21.1
142
395
3
9.7
230
64
2.42
21.5
149
430
3.5
10.4
230
62
2.48
22
157
470
4
11.2
230
60
2.53
22.7
164
500
5
12.5
230
58
2.64
24
480
580
6
13.7
230
56
2.75
25.2
198
660
4/12
4
16
460
68
2.38
21.3
146
420
5
18.8
460
63
2.46
21.8
158
480
6
19.3
460
60
2.54
22.6
172
550
7
20.8
460
57
2.62
23.6
190
620
8
22.5
460
54
2.73
24.8
207
700
10
25
460
48
3.00
27.8
248
850
12
28
460
45
3.46
31.4
292
1020
*
Thermal capacities for short times other than one second may be calculated on the basis of time being inversely proportional to
the square of the current.
Ø Degrees current lags voltage at tap value current.
**
Voltages taken with Rectox type voltmeter.
