Relay Test Sets Manufacturer and Supplier
Relay test sets inject current and voltage into a protection relay and check whether it operates at its settings. They are used for secondary injection testing of protection relays in substations and in the laboratory, covering overcurrent, distance, differential and overvoltage functions.
The choice between a single-phase, three-phase and six-phase set depends on the relay under test: a single-phase set suits simple overcurrent checks, while three-phase and six-phase sets cover distance and differential protection tests that need several outputs at once. Before ordering, confirm the model, the number of current and voltage outputs, the accuracy class, and the delivery terms.
Models in this family
| TEST-630 | Six phase universal protection relay test kit |
|---|---|
| TEST-330 | Three phase relay microcomputer test system |
| TEST-330B | Three phase secondary current injection test set |
| TEST-750 | Single phase microcomputer relay test set |
Figures on this page come from the manufacturer's own category pages, manufacturer-hosted datasheets, or a shop listing stated as such. Where the reference material does not settle a figure, this site states that it is unresolved and publishes no figure, rather than choosing one.
What to confirm before ordering
Before payment, confirm the model, the specification from the current datasheet, the quantity, the price, the lead time, and the delivery terms, in writing. Ask in your inquiry to confirm the payment terms, the trade terms, and the reply time you should expect, rather than assuming any of them. No price, minimum order or lead time figure is stated on this site.
Send an inquiry: include the model, the test or measurement requirement, and the quantity you need. Before payment, confirm the model, the specification from the current datasheet, the quantity, and the delivery terms.