China switchgears Manufacturer, Supplier, Factory

The KYN28-12(Z) 7.2KV 1250A Commercial Switchgear Power Distribution Cabinet is designed for three-phase operating at a rated voltage of 12kV and a rated frequency of 50Hz. Its primary function is to manage the reception, distribution, and monitoring of electrical energy as well as to control and protect circuits.

This circuit breaker is a multifunctional low-voltage protection device designed for distribution systems with AC 50Hz, rated voltage below 400V, and rated current below 63A. It is suitable for industrial, commercial, and civilian power networks. Its core functions integrate security protection, equipment protection, and intelligent monitoring, which can significantly improve the reliability and operation efficiency of the distribution system. Core functional highlights: 1. Safety protection 1) Personal safety assurance: Through high-precision residual current detection technology (RCD), indirect contact protection is provided, effectively reducing the risk of electric shock. 2) Equipment and line protection: Integrated overload and short circuit dual protection mechanism, accurately cutting off fault current, avoiding electrical fires and equipment damage. 2. Intelligent monitoring and early warning 1) Leakage pre-alarm function: Real-time monitoring of residual current in the circuit. When abnormal leakage (such as insulation degradation) is detected, an alarm signal is output through a passive normally open contact (dry contact). It can be linked to SCADA, fire protection system or sound and light alarm device without an external power supply to achieve early warning of faults and ensure power supply continuity. 2) Flexible threshold configuration: supports custom setting of leakage alarm values, adapting to sensitivity requirements of different scenarios (such as 30mA/100mA adjustable). 3. Diversified control ability Line and motor control: suitable for occasional switching operations of distribution lines or intermittent start-stop control of small motors, meeting the requirements of nonfrequent operation scenarios. Typical application scenarios: 1) Key power supply areas: places with high requirements for power continuity, such as data centers and hospital IT systems, have alarm nontrip mechanisms to avoid accidental power outages. 2) Equipment protection: Front-end protection for devices such as frequency converters and outdoor electrical cabinets that are susceptible to electrical leakage or environmental impact. 3) Intelligent operation and maintenance: By connecting to the building management system (BMS) through touch signals, remote monitoring and preventive maintenance can be achieved. Product advantages: 1) High reliability: thermal magnetic double trip structure, balancing overload delay protection and short-circuit instantaneous action characteristics. 2) Flexible expansion: an optional communication module, supporting remote status monitoring and fault diagnosis. 3) Easy installation: Standardized modular design, compatible with mainstream rail installation, suitable for compact distribution boxes. Summary: This circuit breaker is designed with the concept of "warning first, safety oriented", which ensures the safety of personnel and equipment while maximizing the stability of system operation. It is the preferred protective device for modern intelligent distribution systems.

In recent years, engineering construction has become increasingly intricate due to the growth of society, the economy, and technology. There is a rising trend towards smaller, smarter switch equipment that demands minimal maintenance. Manufacturers, both local and global, are focusing on the development of the 40.5kv 2000A High Voltage Sf6 Gas Insulated Switchgear, also referred to as gas-insulated switchgear (C-GIS). These switchgears house high-voltage elements like busbars, circuit breakers, isolating switches, and power cables within a protective shell with reduced gas pressure.

This 145KV Outdoor high-voltage SF6 ceramic column single-phase circuit breaker,and 126KV three-phase AC 50HZ transmission and transformation systems, offering both control and protection. Its versatility extends to functioning as a contact breaker and opener group, making it a valuable asset in various applications

The 40.5KV 1600A Outdoor high-voltage combination electrical appliances, an outdoor high-voltage electrical appliance, is an efficient solution that combines air insulation with SF6 gas for arc extinguishing. This unit is designed for controlling and protecting three-phase AC 40.5kV transmission and distribution systems, as well as for connecting circuit breakers and operating capacitor banks. Its efficiency makes it ideal for use in urban substations, enterprise substations, and mountain substations with limited land availability, promising to improve your operations.

The ZW32 series 12kv 630A Outdoor Pole Mounted Vacuum Circuit Breaker VCB is a reliable distribution device designed for outdoor use in harsh weather conditions. With a rated voltage of 12kV and a three-phase alternating current of 50Hz, it is suitable for a variety of applications, including substations, industrial and mining enterprises, and rural power grids that require frequent operation. The circuit breaker's compact size, lightweight, and resistance to condensation make it easy to maintain and operate. It can handle load currents, overload currents, and short circuit currents, ensuring a dependable performance in power distribution and control.