41-116.1A
11
COV-8 INVERSE TIME AND COV-9 VERY INVERSE TIME RELAYS
Ampere
Range
Tap
Continuous
Rating
(Amperes)
One Second
Rating *
(Amperes)
Power
Factor
Angle Ø
VOLT AMPERES * *
At
Tap Value
Current
At 3 Times
Tap Value
Current
At 10 Times
Tap Value
Current
At 20 Times
Tap Value
Current
0.5/2.5
0.5
0.6
0.8
1.0
1.5
2.0
2.5
2.7
3.1
3.7
4.1
5.7
6.8
7.7
88
88
88
88
88
88
88
72
71
69
67
62
57
53
2.38
2.38
2.40
2.42
2.51
2.65
2.74
21
21
21.1
21.2
22
23.5
24.8
132
134
142
150
170
200
228
350
365
400
440
530
675
800
2/6
2
2.5
3
3.5
4
5
6
8
8.8
9.7
10.4
11.2
12.5
13.7
230
230
230
230
230
230
230
70
66
64
62
60
58
56
2.38
2.40
2.42
2.48
2.53
2.64
2.75
21
21.1
21.5
22
22.7
24
25.2
136
142
149
157
164
180
198
360
395
430
470
500
580
660
4/12
4
5
6
7
8
10
12
16
18.8
19.3
20.8
22.5
25
28
460
460
460
460
460
460
460
68
63
60
57
54
48
45
2.38
2.46
2.54
2.62
2.73
3.00
3.46
21.3
21.8
22.6
23.6
24.8
27.8
31.4
146
158
172
190
207
248
292
420
480
550
620
700
850
1020
TYPE COV-11 RELAY
Ampere
Range
Tap
Continuous
Rating
(Amperes)
One Second
Rating *
(Amperes)
Power
Factor
Angle Ø
VOLT AMPERES * *
At
Tap Value
Current
At 3 Times
Tap Value
Current
At 10 Times
Tap Value
Current
At 20 Times
Tap Value
Current
0.5/2.5
0.5
0.6
0.8
1.0
1.5
2.0
2.5
1.7
1.9
2.2
2.5
3.0
3.5
3.8
88
88
88
88
88
88
88
36
34
30
27
22
17
16
0.72
0.75
0.81
0.89
1.13
1.30
1.48
6.54
6.80
7.46
8.30
10.04
11.95
13.95
71.8
75.0
84.0
93.1
115.5
136.3
160.0
250
267
298
330
411
502
610
2/6
2.0
2.5
3.0
3.5
4.0
5.0
6.0
7.0
7.8
8.3
9.0
10.0
11.0
12.0
230
230
230
230
230
230
230
32
30
27
24
23
20
20
0.73
0.78
0.83
0.88
0.96
1.07
1.23
6.30
7.00
7.74
8.20
9.12
9.80
11.34
74.0
78.5
84.0
89.0
102.0
109.0
129.0
264
285
309
340
372
430
504
4/12
4.0
5.0
6.0
7.0
8.0
10.0
12.0
14
16
17
18
20
22
26
460
460
460
460
460
460
460
29
25
22
20
18
17
16
0.79
0.89
1.02
1.10
1.23
1.32
1.8
7.08
8.00
9.18
10.00
11.1
14.9
16.3
78.4
90.0
101.4
110.0
124.8
131.6
180.0
296
340
378
454
480
600
720
*
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.
ENERGY REQUIREMENTS
