Miniature current and voltage transformer

It is used for monitoring voltage, power, and electrical energy in power automation systems. This product is designed to acquire and isolate voltage signals from relay protection devices, instruments, and meters operating at AC voltages below 1000 V. It is a current‑type voltage transformer: the primary winding incorporates a series resistor to convert voltage into current, and after current transformation by the transformer, the secondary output current is converted into the desired voltage via a sampling resistor.

Primary and secondary integration using an isolated voltage transformer

Ring main units and circuit breakers for primary‑secondary integrated equipment in transmission, distribution, and substation projects. This product is used to isolate, transmit, and sample phase voltage, phase current, and zero-sequence voltage signals in such integrated systems.

Instrument current transformer

The product is used for monitoring in multifunction meters, intelligent testing instruments, electronic energy meters, and building automation systems. It is designed for power‑metering applications that demand high accuracy and minimal phase error. The current transformer's core‑passing opening accepts an AC current, which induces a milliampere‑level current on the secondary side; this signal is then converted into the required voltage via a shunt resistor and accurately transmitted to the microprocessor‑based electronic circuitry.