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MEGGER SVERKER 750 Programma Relay Test Set
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Megger SVERKER 750 Protection Relay Test Kit
Since the acquisition of Programma in 2007, Megger has since manufactured and supplied the popular relay testers under the SVERKER model range.
The SVERKER 750 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 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, albeit one phase at a time. This being said, multiple SVERKER units can be connected and syhcronized to form a basic three phase test set, applicable for relay protection systems that require phase shifting.
Relays which the SVERKER 750 can test:
Overcurrent relays, Ansi Number 50
Inverse time overcurrent relays, Ansi Number 51
Undercurrent relays, Ansi Number 37
Ground fault relays, Ansi Number 50N, 51N
Directional overcurrent relays, Ansi Number 67
Directional ground fault relays, Ansi Number 67N
Overvoltage relays, Ansi Number 59
Undervoltage relays, Ansi Number 27
Directional power relays, Ansi Number 32
Power factor relays, Ansi Number 55
Differential protection (differential circuits), Ansi Number 87
Distance protection equipment (phase by phase), Ansi Number 21
Negative sequence overcurrent relays, Ansi Number 46
Motor overload protection, Ansi Number 51/66
Automatic reclosing devices, Ansi Number 79
Tripping relays, Ansi Number 94
Voltage regulating relays
Underimpedance relays, Ansi Number 21
Thermal relays, Ansi Number 49
Please note that the Megger (Programma) SVERKER 780 is also available which offers additional functionality in order to test frequency relays, Ansi number 81.
In addition to protective relay testing, the Megger (Programma) SVERKER 750 also offers the following features:
Plotting excitation curves
Current and voltage transformer ratio tests
Burden measurement for protective relay test equipment
Polarity (direction) tests
Maintained - Injection continues without any time limitation.
Momentary - Injection continues only as long as the button is kept depressed.
Max. time - Injection stops automatically when the preset maximum time is reached.
When filtering is selected, five successive readings are averaged. The following can be filtered: Current, Voltage and Extra items that are measured.
The turning off of generation can be delayed after tripping throughout a specified time interval that is expressed in mains frequency cycles.