Useful Hints
8-6
Watt-loss Data of OMEGA ACBs
Watt loss value
Watt loss plays an important role in the electrical performance of Air Circuit Breaker. Factors like
Overall dimension, rated current carrying capacity of Bus-bar and watt loss of apparatus attach
To the Air Circuit Breaker also plays an important role in calculation of watt loss data. Total watt loss
Value is measured at rated current (In) of a 3 pole Air Circuit Breaker at 50/60 Hz. ( W = 3 x In^ 2 x R) ,
where R is the resistance measured across the upper & lower terminals of ACB at cold state.
Frame Size & Current
Rating
UW1-08
UW1-10
UW1-12
UW1-16
UW1-20
For draw-out ACB ( Watt)
N
100
160
210
325
S
50
65
100
160
H
35
50
65
100
220
V
440
UW2-25
UW2-32
560
465
600
600
600
560
390
UW2-40
UW3-40
UW3-50
UW3-63
770
770
500
750
1000
500
750
1000
Summary of Contents for U-POWER Omega UW-MTX 1.5G
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Page 30: ...3 12 X X 100 150 mm X 100 150 mm X X 15 max...
Page 45: ...3 27 Termination Draw out Breakers THIS PAGE IS INTENTIONALLY LEFT BLANK...
Page 46: ...Termination Draw out Breakers 3 28 THIS PAGE IS INTENTIONALLY LEFT BLANK...
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Page 83: ...4 1 4 1 Cradle Mounted Accessories...
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Page 90: ...4 8 4 2 Breaker Mounted Accessories...
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Page 97: ...Section 5 Protection Control units 5 1 Identification 5 2 Protection Characteristics...
Page 104: ...5 7 Protection Characteristics Overload I T for UW MTX1 0 2 0 1 1 10 100 1000 10000 10s...
Page 119: ...6 3 6 3 Testing Control circuit Interlocks if breaker is equipped with accessories...
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Page 142: ...Section 8 Useful Hints...