Welcome to the official website of Hebei Cheng'an Electric Co., Ltd.
2025/08/20
Technical Characteristics of Station-Type Lightning Arrester
Rated voltage: The maximum power frequency voltage that the arrester can withstand briefly and extinguish the arc (for example, the rated voltage of HY5WZ-17/45Q is 17kV). Continuous operating voltage: The voltage value allowed for long-term operation (such as 13.6kV), which must be ≥ the system's highest phase voltage.
2025/07/28
Common Types of Power Testing Equipment
Insulation withstand voltage test equipment: used to test the insulation performance of power equipment, ensuring safe operation under normal and abnormal conditions. Transformer test equipment: including gas relay calibrators, used to test various performance parameters of transformers, such as no-load characteristics and load characteristics. Electric energy meter calibration devices: such as three-phase electric energy meter field calibrators, used to calibrate the accuracy of electric energy meters, ensuring fairness in electric energy measurement.
2025/07/28
Application fields of insulating materials
Power System: High Voltage Insulators: Made of ceramic or composite materials, supporting conductors and isolating high voltage. Transformers: Insulating paperboard and transformer oil used for winding insulation and heat dissipation. Cables: Plastic or rubber outer sheath, inner insulation layer prevents current leakage. Motors and Electrical Appliances: Motor Windings: Polyester film and mica tape wrapped around wires to prevent short circuits. Switchgear: Epoxy resin castings providing insulation and mechanical support. Electronic Equipment: Printed Circuit Boards (PCB): Glass fiber reinforced epoxy resin substrate supporting electronic components. Capacitors: Polypropylene film or ceramic dielectric storing electric charge. New Energy Sector: Solar Panels: EVA film encapsulation protecting cells and providing insulation. Wind Turbines: Weather-resistant insulating materials suitable for harsh environments.
2025/07/28
The core role of insulating materials
Electrical isolation: Prevents current flow between conductors or between conductors and the external environment, ensuring normal circuit operation. Mechanical support: Provides structural support for conductors, such as the insulating frame in motors. Heat dissipation and heat resistance: Some insulating materials must withstand high temperatures and assist in heat dissipation, such as insulating boards in transformers. Moisture and corrosion protection: Protects conductors from environmental corrosion, extending equipment lifespan.
2025/07/28
Application fields of power equipment
Power equipment is the core component of the power system, covering power generation, transmission, transformation, distribution, and consumption. For example, transformers are used for voltage conversion, circuit breakers for fault isolation, and current transformers for measurement and protection.
Contact Us
No. 9, 8th Road, Industrial Park, Pangjiazhuo Township, Gaoyang County, Baoding City, Hebei Province
No. 9, 8th Road, Industrial Park, Pangjiazhuo Township, Gaoyang County, Baoding City
Leave a Message Now