Megger SVERKER 780 Single Phase Relay Tester


  • Secondary testing of protective relays
  • Output current up to 200A
  • Tests voltage frequency relays

Megger SVERKER 780 features a multi-mode display which makes relay testing more efficient. In addition to time, voltage and current, impedance (Z), resistance (R), reactance (X), virtual power (S), active power (P), reactive power (Q), phase angle (φ) and power factor (cos φ) can also be displayed.

As standard, the Megger SVERKER 750 and SVERKER 780 can test directional protective equipment due to an inbuilt variable voltage source, as well as protective devices which automatically reclose after operation.

Three phase protective equipment can be also tested, one phase at a time. Multiple SVERKER units can be connected and synchronised to form a basic three phase test set, applicable for relay protection systems that require phase shifting.

The Megger SVERKER 780 offers the following benefits over the Megger SVERKER 750

  • Continuous phase shift function
  • Adjustable frequency in order to test voltage relays with a frequency range between 15 and 550Hz

In addition to protective relay testing, the Megger SVERKER 780 also offers the following features:

  • Plotting excitation curves
  • Current and voltage transformer ratio tests
  • Burden measurement for protective relay test equipment
  • Impedance measurement
  • Efficiency tests
  • Polarity (direction) tests
  • Injection
  • Maintained – Injection continues without any time limitation.
  • Momentary – Injection continues only as long as the button is kept depressed.
  • time – Injection stops automatically when the pre-set maximum time is reached
  • Filtering
  • When filtering is selected, five successive readings are averaged. The following can be filtered: Current, Voltage and Extra items that are measured.
  • Off delay
  • The turning off of generation can be delayed after tripping throughout a specified time interval that is expressed in mains frequency cycles.