BURDENS
Burdens for the various relay types are given
in
the following table:
Relay
Voltage Tap*
Volt-
Power Watts
Types
Rating Setting Amps Factor
60 - Cycle Burdens
IAV51A
115
140
1.3
0.34
0.4
&
120
1.8
0.35
0.5
IAV52A
105
2.4
0.34
0.7
93
3.1
0.33
0.9
82
3.9
0.32
1.2
70
5.4
0.31
1.7
64
6.6
0.31
2.1
55
9.2
0.35
3.2
IAV510
199
A(16
�
35.2
0.08
2.85
B(24
30.8
0.32
9.75
C(40
�
23.9
0.68
16.2
0(64
14.9
0.90
13.5
IAV510
115
A(10
�
31.3
0.20
6.25
B(15
26.4
0.38
9.9
C(25
20.7
0.72
14.95
0(40)
13.8
0.93
12.85
IAV510
345
A{28)
38.6
0.15
5.82
B{42)
33.4
0.41
13.8
C{70)
24.8
0.78
19.2
0{112)
15.9
0.96
15.2
IAV51K
67
A{5.4
�
35.5
0.15
5.3
B{7.5
32;5
0.33
10.7
C(12.5)
25.6
0.69
17.7
0(20)
17.4
0.92
16.1
IAV52C
199
No taps 36.4
0.23
8.5
IAV53A,
115
140
2.2
0.32
0.7
IAV53B,
120
3.0
0.30
0.9
&
105
4.0
0.31
1.2
IAV53D
93
5.4
0.31
1.7
82
7.0
0.32
2.2
70
9.9
0.34
3.4
64
12.0
0.36
4.3
55
17.0
0.39
6.6
IAV53C
115
No taps
5.7
0.29
1.7
50 - Cycle Burdens
IAV51A
115
140
1.2
0.34
0.4
&
120
1.6
0.34
0.5
IAV52A
105
2.1
0.34
0.7
93
2.8
0.38
1.9
82
3.6
0.36
1.3
70
5.1
0.34
1.7
64
6.2
0.34
2.1
55
8.2
0.34
2.9
Relay
Types
IAV510
IAV510
IAV510
IAV51K
IAV52C
IAV53A
&
IAV53B
IAV53C
IAV51A
&
IAV52A
IAV53A
&
IAV53B
IAV53C
Voltage Relays Type IAV GEH-1814
Voltage ' Tap*
Volt-
Power Watts
Rating 'Setting Amps Factor
50 - Cycle Burdens (Con't.)
199
A{16
�
27.4
0.10
2.76
B{24
24.7
0.37
9.05
C{40)
19.1
0.70
13.4
0{64)
13.3
0.93
12.2
115
A{10)
37.4
0.21
7.8
B{15
�
30.6
0.52
16.
C{25
22.2
0.82
18.3
0{40)
13.6
0.97
13.2
345
A(28
�
31.4
0.15
4.55
B(42
27.6
0.42
11.6
C(70)
20.6
0.76
15.6
0(112)
13.8
0.94
13.0
67
A{5.4
�
29.8
0.12
3.58
B{7.5
26.8
0.36
9.6
C{12.5) 21.4
0.69
14.7
0(20)
14.95
0.92
13.7
199
No taps 29.6
0.23
7.6
115
140
1.9
0.32
0.6
120
2.5
0.30
0.8
105
3.4
0.29
1.0
93
4.6
0.31
1.4
82
6.0
0.32
1.9
70
8.4
0.35
2.9
64
12.9
0.29
3.7
55
13.2
0.35
4.6
115
No taps 4.8
0.32
1.6
2 5 Cycle Burden
115
140
1.1
0.50
0.5
120
1.5
0.49
0.8
105
2.1
0.49
1.0
93
2.7
0.47
1.2
82
3.4
0.49
1.7
70
4.8
0.49
2.4
64
5.8
0.49
2.9
55
8.2
0.49
4.0
115
140
1.7
0.32
0.5
120
2.3
0.30
0.7
105
2.9
0.30
0.9
93
4.2
0.30
1.3
82
5.3
0.32
1.7
70
7.5
0.34
2.6
64
9.5
0.34
3.3
55
12.9
0.39
5.0
115
No taps 4.2
0.38
1.6
* Min. pick-up volts
5
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