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SVERKER 900 Relay Substation Test System (Basic)

Megger SVERKER 900 for substation 3-phase testing is rugged & reliable. Three currents & four voltages. Stand-alone functionality Generation of 900 V & 105 A in single phase mode. Secondary & primary testing.

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Megger SVERKER 900 SVERKER 900 Relay and Substation Test System

The SVERKER 900 is the engineer‘s ultimate testbox that address the increasing need for three-phase testing capability in electrical distribution substations, renewable power generation stations and industrial applications.

Megger SVERKER 900 Key Features:

  • The toolbox for substation 3-phase testing
  • Three currents and four voltages
  • Stand-alone functionality
  • Rugged and reliable for field use
  • Generation of 900 V and 105 A in single phase mode
  • Secondary and primary testing

The SVERKER 900 Relay and Substation Test System is the engineer’s ultimate toolbox that addresses the increasing need for three-phase testing capability in electrical distribution substations, renewable power generation stations and industrial applications. The intuitive user interface is presented on the LCD touch screen. It has a powerful combination of current and voltage sources and a versatility of measurement possibilities. The SVERKER 900 is specifically designed for basic, manual threephase secondary testing of protection devices. In addition, various primary testing can be performed, since the current and voltage sources can be series- and/or parallel connected to allow for up to 105 A AC or 900 V AC output. All three current and four voltage sources can be individually adjusted with respect to amplitude, phase angle and frequency. The fourth voltage source allows for testing of numerical relays that needs a reference voltage simulating the busbar.


Megger SVERKER 900 Applications:

  • Commissioning and maintenance of distributed and generator power Substation
  • Protection relays
    • Electromechanical relays
    • Static relays
    • Numerical relays
  • Plotting current transformer excitation curves
  • Current and voltage transformer ratio tests
  • Burden measurement for CT circuits
  • Polarity (direction) tests
  • Impedance measurement
  • Primary injection in switchgear
    • Three phase
    • Single phase
  • Checking SCADA annunciation and measurement values
  • Wiring check



Megger Sverker 900 Protective relay testing:

SVERKER 900 is performing a wide area for manual secondary testing of protective relay equipment. Virtually all types of single-phase and three-phase protection can be tested, from modern multifunction relays to electromechanical relays. It can inject current up to 105 A when high range is needed and it has a frequency range from 10Hz up to 600Hz and also DC could be utilised. In the “expert mode” the user have the possibility to add layers of superimposed frequency. The rugged hardware design is built for field use over a wide temperature range, with intelligent software to perform rapid testing.


Megger SVERKER 900 can tests:

Examples of what SVERKER 900 can test followed by ANSI® No.


  • Distance protection / under impedance relay 21
  • Overfluxing relays 24
  • Synchronising or synchronism-check relays 25
  • Undervoltage relays 27
  • Directional Power relays 32
  • Undercurrent or underpower relays 37
  • Loss of field relays 40
  • Negative sequence overcurrent relays 46
  • Phase sequence voltage relays 47
  • Thermal relays 49
  • Overcurrent- / ground fault relays 50 (N)
  • Inverse time overcurrent-/ ground fault relays 51 (N)
  • Power factor relays 55
  • Overvoltage relays 59
  • Voltage or current balance relays 60
  • Directional overcurrent relays / ground fault relay 67 (N)
  • Motor overload protection 66
  • DC overcurrent relays 76
  • Phase-angle measuring or out-of-step protection relays 78
  • Automatic reclosing devices 79
  • Frequency relays 81
  • Carrier or pilot wire 85
  • Differential protection relays (differential circuits) 87
  • Directional voltage relays 91
  • Voltage and power directional relays  92
  • Tripping relays 94


Versions with accessories come with:

  • (GA-00030) Test cable set standard
  • (GA-00200) Protective cable
  • (GA-00036) Cable set SVERKER 900
  • (GD-00185) Flight case with wheels


Comparison Chart for: Megger SVERKER 900 Relay Substation Test System (Basic)

900 BasicBasic with AccessoriesStandard with AccessoriesExpert with Accessories
Main Instrument
Prefault - Fault Instrument
CT Magnetising Instrument
Ramping Instrument
Sequencer Instrument
Impedance Instrument
Accessories Included


Accessory Code Description Price (Ex VAT)
GA-00036 Cable set SVERKER 900 price on request