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The Sverker 760 Relay Test Unit
is the engineers toolbox. The Sverker 760 features many
functions that make relay testing more efficient, for example, it's
powerful measurement section can display (in addition to time,
voltage and current) Z, R, X, S, P, Q, phase and cos.
The voltmeter can be used as a second ammeter.
You can also test directional protective equipment efficiently by
means of the built-in variable voltage source. The Sverker
760 also has a continuous phase shift function. The 760 is
designed to comply with EU Standards and other personal and
operational safety standards, Sverker 750 is also equipped with a
Serial Port for communication to a PC. (PC software required)
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Sverker 760 Specifications (PDF)
(documents
are in PDF format and will open in a new window)
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Applications
- The model 760 is intended primarily for secondary testing of
protective relay equipment. Virtually all types of single-phase
protection can be tested.
- The 760 is able to test three-phase protection that can be
tested one phase at a time, and also a number of protective relay
systems that require phase shifting. Moreover, automatic reclosing
devices can be tested.
- Plotting excitation curves.
- Current and voltage transformer ratio tests.
- Burden measurement for protective relay test equipment.
- Impedance measurement.
- Injection Maintained:
Injection continues without any time limitation.
- Injection Momentary:
Inject continues only as long as the button is kept depressed.
- Maximum Time:
Injection stops automatically when the preset maximum time is
reached.
- Filtering:
When filtering is selected, five successive readings are averaged.
- Off Delay:
The turning off of generation can be delayed after tripping
throughout a specified time interval that is expressed in
mains-frequency cycles.
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