The TEST-901D is a lightweight all-in-one 1000A primary current injection test set, tailored for substation commissioning and on-site power maintenance.It is widely applied for CT ratio and polarity verification, circuit breaker performance testing, relay protection inspection and full-range primary current injection tests.
Adopting a high-precision acquisition module, the unit ensures stable output and accurate test results. It is fitted with a 7-inch color touch screen for intuitive data viewing, a built-in thermal printer to generate test reports on site, and comprehensive safety protection design for reliable field use.
With an ultra-light weight of only 20kg, the compact structure enables easy carrying and flexible deployment. It is an ideal testing solution for power plants, substations and electrical engineering maintenance projects.
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