Zero-sequence Current Transformer

Zero-sequence current transformers are used in conjunction with relay protection devices or signals when a zero-sequence grounding current is generated in a power system, causing the device components to operate and achieving protection or monitoring.

1) Multiple aperture options to meet on-site cable requirements.

2) Multiple capacity, transformation ratio, and accuracy limit factor options.

3) Compatible with microprocessor-based protection systems, low-current grounding line selection devices, relays, etc.

4) ABS engineering plastic shell, resin-cast for a fully sealed design, excellent insulation performance, and aesthetically pleasing appearance.

5) High sensitivity, good linearity, reliable operation, and easy installation.

6) Superior performance compared to general zero-sequence current transformers, with a wide range of applications, suitable not only for electromagnetic relay protection but also for electronic and microprocessor-based protection devices.

7) Users can select the appropriate zero-sequence current transformer based on the different operating modes of their systems.

1.Safety Protection: Prevents electric shock and electrical fires. Applications include: shopping malls, hotels, schools, residences, factories, and other densely populated or high-risk fire locations.

2.System Protection: Protects the power grid and equipment from grounding faults. Applications include: fires, equipment damage, electric shock, and leakage current circuit breakers.

3.Condition Monitoring: Provides early warning of insulation degradation, enabling predictive maintenance. Applications include: hospital operating rooms, chemical plants, and data centers.

4.Quality Analysis: Assists in power quality management. Applications include: power quality monitoring systems, smart buildings, data centers, and industrial plants.

Baoding Simaier Electric Co., Ltd. was established on July 1, 2009 and is located in the National High-tech Industrial Development Zone of Baoding City, Hebei Province. It is a high-tech enterprise focusing on the research and development of power system automation, relay protection and instrumentation.