China 35kv switchgear Manufacturer, Supplier, Factory

The DZ20 series plastic shell circuit breaker (hereinafter referred to as the circuit breaker) is suitable for distribution lines with AC 50Hz, rated current up to 1250A, rated insulation voltage of 660V, rated working voltage of 380V (400V) and below, as overload, short circuit and undervoltage protection for distributed electrical energy, lines and power equipment. Among them, the Y, J, and G type circuit breakers with rated currents of 225A and Y type 400A can also be used to protect motors. Under normal circumstances, the circuit breaker can be used for infrequent switching of lines and infrequent starting of motors. The product meets the standards of JB8589, GB14048.2, and IEC947-2.

Embark on a journey of resilient power distribution with Kexunan's 12KV 1250A Ring Main Unit High Current Medium Voltage Switchgear. As a trusted manufacturer committed to durability, Kexunan stands at the forefront of delivering high-quality solutions for medium voltage applications. Our meticulously crafted RMU switchgear, designed to handle high currents, is a testament to our dedication to manufacturing excellence. Choose Kexunan as your preferred manufacturer, and experience the lasting durability of our switchgear solutions. Elevate your medium voltage infrastructure with Kexunan's reliable and efficient RMU switchgear, setting new standards for durability and performance in the industry.

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.

This product 12KV vacuum circuit breaker with Isolation and Grounding offers numerous benefits, including simplicity of installation, reduced maintenance needs, a reassuringly extended lifespan, compact design, affordability, and reliability. The product complies with the technical standards of GB1984-89 and GB/T1984-2003 for AC high-voltage circuit breakers. Key specifications include a main circuit capacity of 630A-20KA and 25KA, with a mechanical lifespan of 10,000 operations. The grounding circuit can withstand 20KA, with a mechanical lifespan of 10,000 operations for the circuit breaker and 3,000 operations for isolation and grounding.

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.

In recent years, the field of engineering construction has faced increasing complexity due to advancements in technology and the growth of society and the economy. There is a rising demand for compact switch equipment that is smart and requires minimal maintenance. Both local and global manufacturers of switches are currently focusing on the development of 12KV 2500A Sf6 Sulfur Hexafluoride Infiilled Electrical Switchgear, also referred to as gas-insulated switchgear (C-GIS). These C-GIS systems encase high-voltage components like busbars, circuit breakers, isolating switches, and power cables in a housing with reduced gas pressure.