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TEST-901 1000A PRIMARY CURRENT INJECTION TEST SET of circuit breaker and CT

Circuit Breaker Test
January 19, 2020
Category Connection: CT PT Bộ phân tích
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TEST-901 is mainly applied to CT turn ratio testing in the power system and contact resistance test which need large current. Primary injection test sets. Primary current injection testing is utilised in high current/high voltage scenarios found at large electrical installations such as substations. A large current (between 100A and 50,000A depending on system specifications and test requirements) is injected directly on the primary side of the electrical system such as a circuit breaker & current transformer.
A primary injection test set injects a multiple of the fault rated current of the breaker, through the breaker while measuring the trip time. The secondary injection test injects a ratio of the fault rated current of the breaker directly into the trip unit and measures how long it takes the breaker to trip.Primary Injection test sets are used to loading. Calibration and testing of CT's bimetals relays, Protection relays etc. Primary Injection test sets are used to loading. Calibration and testing of CT's bimetals relays, Protection relays etc. Mostly Primary Injection Test set are designed as per customer's specification.
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#thiết bị kiểm tra biến áp điện #phân tích ngắt mạch #dụng cụ kiểm tra biến thế
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