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KEP UPA-3 自动断路器测试仪 (最高3kA)

 

Details

Datasheet

 

 

Automatic circuit breaker tester UPA-3 is designed for testing and ampere-second characterization of automatic AC current circuit breakers. The device allows registering the value of the supplied current and timing the automatic circuit breaker switching interval.

UPA-3 is a mobile device, which could be easily transported to a required testing location.

UPA-3 operates on the principle of varying the power in the primary circuit of the matching power transformer and, respectively, varying the output current, flowing through the automatic circuit breaker under the test. Power regulation could be done either through an external regulator (RNO or VR) or through a built-in thyristor controller.

 

  • Technical Specifications

Characteristic

Value

Single-phase AC power supply voltage, V

220±22

Power supply frequency, Hz

50±1

Maximum output current when powered from 220 V AC circuit, kA

3

Test current measurement range, kA

0.10...3

Test current measurement range on one coil, A

100…1000

Test current measurement range on two coils, A

50…500

Test current measurement range on three coils, A

33…330

Test current measurement range on four coils, A

25…250

Test current measurement range on five coils, A

20…200

Test current supply time measurement range, s

1...7200

Test current supply time measurement range, ms

50...990

Reduced error of the test current measurement, %

±3

Absolute error of the current flowing time and the switching off time measurement in the range from 50 ms to 990 ms, ms, max

±20

Reduced error of the current flowing time and the switching off time measurement in the range from 1 s to 7200 s, %, max

±3

Continuous running time under the maximum current, s, min

10

Maximum consumed power, kVA

5

Net weight of IT-3 (current supply), kg, max

13

Net weight of the control unit (without flexible busbars), kg, max

3

Net weight of the flexible busbar (length 1 m, cross-section 110 mm2), kg, max

1.3

Dimensions of the control unit, mm, max

340х210х140

Dimensions of the IT-3, mm, max

250х220х115

Lifespan, years, avg

10

  •  
  • Operating Conditions
  • Package Contents

Component

Quantity

UPA-3 control unit

1

Current source IT-3

1

Flexible busbar with cross-section 110 mm2 (length 1 m)

4

RNO connection outlet

1

Power cable UPA-3

1

Fasteners for connecting busbar, sets

1

RNO (Inom = 22 A)

Optional*

Cable for connecting RNO to UPA-3

Optional*

 

Documentation

User Manual

1

  • * Delivery terms of RNO are discussed separately.

 

 

  • 质量承诺
  • 正品保修
  • 送货到家
  • 交易简单化

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