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參數(shù)資料
| 型號(hào)： | A74-10 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Current and Voltage Controls Current Transformer, 3-Phase |
| 中文描述： | 電流和電壓控制電流互感器，3相 |
| 文件頁數(shù)： | 2/2頁 |
| 文件大?。?/td> | 76K |
| 代理商： | A74-10 |
2
Specifications are subject to change without notice (19.07.06)
A 74-10, A 74-11
General Specifications
Pollution degree
Ambient temperature
Housing
Dimensions
3 (IEC 60664)
- 20 to + 60°C (- 4 to + 140°F)
A74-10
A74-11
120 x 45 x 16 mm
150 x 114 x 23
ABS
200 g
750 g
2 m PVC, 4 x 0.4 mm
2
UL
Yes
Material
Weight
A 74-10
A 74-11
Connection cable
Approval
CE Marking
The current metering trans-
former is connected to the
current control relays H 475
as follows:
Red
core to
term. 5
White
core to
term. 6
Yellow
core to
term. 7
Black
core to
term. 8
.
(starpoint - neutral).
- U
1
.
- U
2
.
- U
3
.
The metered conductor is
drawn through the central
hole of the current metering
transformer. Drawing the con-
Mode of Operation
ductor through the hole sever-
al times makes it possible to
meter currents below the no-
minal range.
If the conductor is drawn
through the central hole e.g. 5
times, the metering trans-
former will register 50 A when
the current in the conductor is
10 A.
In amplitude and phase the
output voltage is proportional
to the phase current metered.
Wiring Diagrams
Output voltage
A 74-10 ..
A 74-11 ..
Input current
Correct connection
Red
White
Yellow
Black
U
1
Red
Black
U
3
Yellow
U
2
White
U
1
Red
U
2
White
U
3
Yellow
Black
Dimensions
Incorrect connection
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