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High Voltage/Current Testing KEP UPA-20

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Product: High Voltage/Current Testing
Model: KEP UPA-20
Manufacturer: Kharkovenergopribor
Description

Automatic circuit breaker tester UPA-20 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-20 is a mobile device, which could be easily transported to a required testing location.

UPA-20 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

AC power supply voltage, V

220±22 or 380±38

Power supply frequency, Hz

50±1

Maximum output current when powered from 220 V circuit, kA

14

Maximum output current when powered from 380 V circuit, kA

20

Test current measurement range, kA

3...20

Range of measurements of the test current supply time, s

1...7200

Range of measurements of the test current supply time, ms

50...990

Reduced error of the test current measurement, %

±3

Reduced error of the measurement of the current flow duration and switching off time, %, max

±3

Continuous running time under the maximum current, s, min

10

Maximum consumed power, kVA

55

Net weight of IT-20 (current supply), kg, max

57

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

84

Dimensions, mm, max

960x680x400

Lifespan, years, avg

10

Operating Conditions

The device is designed for an indoors operation under the following conditions:

Condition

Value

Air temperature, °Ð¡

from -35 to +35

Relative humidity, %, up to

80 at +20° С

Atmospheric pressure, kPa (mm hg)

84,0 – 106,7 (630 – 800)

Package Contents

Component

Quantity

UPA-20 control unit

1

Current source IT-20

1

Mobile trolley

1

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

8

Flexible busbar with cross-section 110 mm2 (length 2 m)

6

Grounding cable cross-section 13 mm2 (length 5 m)

1

Collector

2

RNO connection outlet

1

RNO (Inom = 120 A)

Optional*

Cable for connecting RNO to UPA-20

Optional

 

Documentation

User's Manual

1

Warranty

The Manufacturer guarantees UPA-20 conformity with the current technical documentation and the relevant Electrical and Safety codes and standards.

Limited Warranty period is 12 months from the date of shipment of the apparatus to the consumer.