Programmacurrent supply units have two main fields of application. The first is to conduct primary tests on protective relays. A primary test shows whether all parts of the protection system are functioning together properly within the specified time limits under operating conditions. The second field of application involves conducting maximum current tests on low- and high-voltage circuit breakers, as well as overcurrent devices.
The CSU 600A is a compact instrument which, together with Timer TM200 and an external ammeter, meets stringent requirements for accuracy, easy handling and performance. This current supply unit is suited for performance and turn-ratio tests of current transformers; primary tests of protective relays; maximum current tests on low- and high-voltage circuit breakers; and commissioning tests that require variable currents.
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