Primary Current Injection Test Sets

Determine the correct operation of circuit breakers, over-current relays, auto-reclosers, MCBs and more with our primary current injector test sets - capable of injecting up to 5000A! Read More about Primary Current Injection Test Sets
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10 Products
  1. Megger CSU600A/AT Current Supply Unit (230V) - Optional Built-in Timer & Analog Ammeter
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    Megger CSU600A/AT Current Supply Unit (230V) - Optional Built-in Timer & Analog Ammeter
    (no reviews)
    £6,012.00 £5,010.00
    • Compact and rugged
    • Quick and easy to use
    • Broad application range
    • Excellent weight-to-performance ratio
    5010 Reward Points
    Price Match Guarantee
    CSU600A-AT
  2. Megger ODEN 480V (60Hz Only) AT/S/X/H Primary Current Injection Test System - Choice of Control & Current Unit
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    Megger ODEN 480V (60Hz Only) AT/S/X/H Primary Current Injection Test System - Choice of Control & Current Unit
    (no reviews)
    £6,090.00 £5,075.00
    • Miniature circuit breaker
    • Current reduction button
    • Quickly assembled and connected
    5075 Reward Points
    Price Match Guarantee
    ODEN480-AT/S/X/H
  3. Megger ODEN 240V AT/S/X/H Primary Current Injection Test System - Choice of Control & Current Unit
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    Free UK Delivery
    Megger ODEN 240V AT/S/X/H Primary Current Injection Test System - Choice of Control & Current Unit
    (no reviews)
    £6,462.00 £5,385.00
    • Miniature circuit breaker
    • Current reduction button
    • Quickly assembled and connected
    5385 Reward Points
    Price Match Guarantee
    ODEN240-AT/S/X/H
  4. Megger ODEN 400V AT/S/X/H Primary Current Injection Test System - Choice of Control & Current Unit
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    Free UK Delivery
    Megger ODEN 400V AT/S/X/H Primary Current Injection Test System - Choice of Control & Current Unit
    (no reviews)
    £6,462.00 £5,385.00
    • Miniature circuit breaker
    • Current reduction button
    • Quickly assembled and connected
    5385 Reward Points
    Price Match Guarantee
    ODEN400-AT/S/X/H
  5. T&R 750ADM-H Primary Current Injection Test Set - 750A
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    T&R 750ADM-H Primary Current Injection Test Set - 750A
    (no reviews)
    £9,248.40 £7,707.00
    • Primary current range up to 750A
    • 4V output
    • Automatic mains voltage selection
    7707 Reward Points
    Price Match Guarantee
    226P
  6. T&R PCU1-SP mk2 Primary Current Injection Test Set - 5000A, 11.5kVA
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    Free UK Delivery
    T&R PCU1-SP mk2 Primary Current Injection Test Set - 5000A, 11.5kVA
    (no reviews)
    £13,291.20 £11,076.00
    • Current output up to 5000A (5kA)
    • 2000A and 5000A loading units (sold separately)
    • Secondary injection to 100A
    11076 Reward Points
    Price Match Guarantee
    TR228
  7. Megger INGVAR Portable Primary Current Injection Test System
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    Megger INGVAR Portable Primary Current Injection Test System
    (no reviews)
    £21,720.00 £18,100.00
    • Maximum current output of 5000A
    • Calculates and displays turns ratio, impedance, power, power factor and phase angle
    • Consists of a control unit and current unit
    18100 Reward Points
    Price Match Guarantee
    BH-72490
  8. T&R CU-Ps Mk2 Primary Current Injection System Control Unit (20kVA)
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    Free UK Delivery
    T&R CU-Ps Mk2 Primary Current Injection System Control Unit (20kVA)
    (no reviews)
    £26,024.40 £21,687.00
    • Multi-function digital timing system
    • 5000A and 6000A loading units
    • Separate control and loading units
    21687 Reward Points
    Price Match Guarantee
    CU-PS MK2
  9. Megger BALTO 1013-636 Compact 4000 DC High Current Circuit Breaker Tester
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    Megger BALTO 1013-636 Compact 4000 DC High Current Circuit Breaker Tester
    (no reviews)
    Call for Pricing
    • Functional tests
    • Useable for up to 4000 A
    • DC high-speed circuit breakers
    We require additional information before you purchase this product.
    1013-636
  10. Megger BALTO Modular High Current Circuit Breaker Tester - Choice of Current Output
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    Free UK Delivery
    Megger BALTO Modular High Current Circuit Breaker Tester - Choice of Current Output
    (no reviews)
    Call for Pricing
    • BALTO Win Software
    • Ergonomic design
    • DC high current circuit breaker tester
    We require additional information before you purchase this product.
    BALTO-Modular

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About Primary Current Injection Test Sets

A primary injection test is a system that incorporates the current sensors, wiring, and conduction route in the circuit breaker with the test.

A primary injection test is helpful for substations or circuits with high voltage and current. It is just the flow of rated current in the circuit under test. If the rated current of the circuit is 2000 A, then 2000 A of current must flow through the circuit. This is necessary to verify overall equipment health and protection system performance.

Primary injection testing, as opposed to the secondary injection test, is the only way to prove correct installation and operation of the whole protection chain, as the test involves the entire circuit: current transformer primary and secondary windings, relays, trip and alarm circuits, circuit breakers, and all wiring. Primary injection testing is performed during the commissioning and maintenance process, or after any modification, as a functional test of the entire system.