China Three phase current transformer Manufacturers, Suppliers, Factory

The LZW8-10 Dedicated Circuit Breaker Zero Sequence Current Transformer is designed to transform the high current on the primary side into a uniform standard 5A or 1A current. This current is then used as the standard input current for measurement, metering instruments, and relay protection devices. Selecting the correct current transformer is crucial as it involves ensuring the accuracy of measurement and metering instruments, as well as the proper operation of relay protection devices. When selecting a current transformer, several factors need to be considered. Firstly, the type of current transformer must be chosen based on the desired measurement and protection objectives. The primary and secondary rated current ratios need to be carefully selected in order to achieve accurate measurement and protection requirements. The selection of the appropriate accuracy class for measurement and protection groups is also essential. Additionally, the rated capacity and the selection of the large output impedance are important considerations. The LZW8-10 Dedicated Circuit Breaker Zero Sequence Current Transformer provides a reliable solution for accurate current transformation and standard input current supply. By converting the high current on the primary side to a standardized current, it serves as the basis for precise measurement, metering, and relay protection functions. This current transformer offers the necessary flexibility and accuracy required for a wide range of applications in the electrical industry. In conclusion, the LZW8-10 Dedicated Circuit Breaker Zero Sequence Current Transformer is a purpose-built current transformer that plays a crucial role in transforming high currents into standardized input currents for measurement, metering instruments, and relay protection devices. Careful consideration of the type, primary and secondary rated currents, accuracy class, rated capacity, and output impedance selection ensures accurate measurement and reliable performance. With its advanced features and reliable performance, the LZW8-10 current transformer is an ideal choice for various electrical applications. It offers the necessary accuracy and reliability required in the demanding field of current transformation and protection.

The SV-12 Indoor High Voltage AC Vacuum Circuit Breaker is designed for use in power systems with a rated voltage of 12kV and operates at a frequency of 50Hz. It finds widespread applications in substations, power plants, industrial and mining enterprises, as well as airports and commercial buildings, where it plays a crucial role in controlling and protecting electrical facilities. With its ability to handle frequent operations and fast reclosing, the SV-12 Circuit Breaker offers unmatched performance. Compliance with national standards and international regulations underscores the quality of the SV-12 Indoor High Voltage AC Vacuum Circuit Breaker. It meets the requirements specified in GB 1984-2014 "High-Voltage AC Circuit Breakers," JB/T3855-2008 "High-Voltage AC Vacuum Circuit Breakers," and DL/T 403-2000 "Technical Requirements for Ordering 12kV to 40.5kV Indoor AC High-Voltage Vacuum Circuit Breakers." Additionally, it conforms to relevant provisions from the International Electrotechnical Commission standards, including IEC 62271-100, IEC 60694, and IEC 62271-1. The standout feature of the SV-12 Indoor High Voltage AC Vacuum Circuit Breaker is its solid insulation ring net cabinet movement. This innovative operating mechanism ensures reliable performance and facilitates convenient maintenance. The use of solid insulation material enhances the breaker's insulation capabilities, promoting the overall safety of the electrical system. Furthermore, the ring net cabinet movement enables smooth and efficient switching of electrical circuits. With its 12kV rated voltage, the SV-12 Circuit Breaker is perfectly suited for high voltage applications. Its extensive usage across various industries and facilities is a testament to its exceptional reliability and performance. The SV-12 Indoor High Voltage AC Vacuum Circuit Breaker provides steadfast control and protection of electrical infrastructure. In conclusion, the SV-12 Indoor High Voltage AC Vacuum Circuit Breaker is an advanced product featuring a solid insulation ring net cabinet movement. Its compliance with national and international standards confirms its superior quality and adherence to stringent regulations. Specifically designed for 12kV power systems, this circuit breaker guarantees reliable performance and efficient control and protection of electrical facilities. Its cutting-edge technology and unrivaled performance make it the ideal choice for a wide range of applications.

The GN30-12 (D) type rotary indoor high-voltage disconnect switch is a newly designed isolation switch with a rotary knife mechanism. Its main structure consists of two sets of insulators and contacts fixed on the two planes of a three-phase chassis. By utilizing the rotary contact, the switch can be easily turned on and off. The GN30-12 (D) type switch is an upgraded version that includes a grounding knife on the basis of the GN30-12 type switch, making it suitable for various power systems. Its compact design ensures minimal space occupation, while also offering excellent insulation capabilities. Installation and adjustment are hassle-free. This product meets the requirements of GB1985-89 "AC high voltage isolating switch and the grounding switch" standards. It is suitable for indoor power systems with a rated voltage of 10kV AC and below, operating at a frequency of 50Hz. The switch is specifically designed for opening and closing circuits under voltage conditions without load. It can be used with a high voltage switch cabinet or as a standalone device

The ZN85-40.5 KV indoor high voltage vacuum circuit breaker is a switch device used for interrupting high voltage electrical circuits in terms of working current and fault current. It features an integrated and modular design with a simple and reasonable overall structure. The breaker is arranged in an upper and lower configuration, with the arc-extinguishing compartment located on top and the interlocking and operating mechanisms below. The device utilizes the specialized 3AV3 spring operating mechanism, which does not require adjustment and ensures stable and reliable operation. The vacuum arc-extinguishing compartment is enclosed within an insulated cylinder, thereby enhancing insulation performance and reducing overall dimensions. This series of ZN85-40.5 KV circuit breakers is suitable for indoor installation in devices rated at 40.5 KV and 50 Hz. It is equipped with the dedicated 3AV3 spring mechanism. The breaker can be installed in the JYN1-40.5(Z) removable metal-enclosed switchgear or the KYN61-40.5(Z) assembled metal-enclosed switchgear. It is considered the ideal circuit breaker for 40.5 KV installations. This series of products boasts high technical parameters, strong breaking capacity, reliable operation, stable performance, long service life, and easy maintenance. Furthermore, it is safe and free from explosion risks or pollution. It is widely used for protection and control of single busbar electrical facilities in industrial and mining enterprises, power plants, and substations. It is also suitable for frequent operations and special scenarios such as the switching of complete capacitor banks. The ZN85-40.5 KV indoor high voltage vacuum circuit breaker combines advanced design, excellent performance, and reliability to meet the demanding requirements of high voltage electrical circuit operations.

The LZZBJ9-10 current transformer is a versatile indoor epoxy resin-casted pillar-type product designed to operate in a wide range of conditions. It is specifically used for current, energy metering, and relay protection purposes in power systems with a rated frequency of 50Hz and a rated voltage of 10kV or below. This current transformer is suitable for both centralized and other types of switchgear installations. One notable feature of the LZZBJ9-10 current transformer is its ability to cater to user requirements by offering options for dual or triple winding ratio structures. This flexibility allows for customized performance based on specific needs. Currently, the LZZBJ9-10 current transformer is available in multiple accuracy classes such as 0.5, 0.2, 0.5S, and 0.2S. It also offers different protection classes such as 10P10 and 10P20. This range of options ensures that users can select the appropriate level of accuracy and protection based on their specific application needs. Furthermore, the LZZBJ9-10 current transformer can be customized to meet non-standard product requirements based on customer demands. This level of adaptability enables users to obtain a tailored solution that precisely fits their unique specifications. In conclusion, the LZZBJ9-10 current transformer is a reliable and efficient choice for power systems operating at 50Hz and below 10kV. Its pillar-type design, epoxy resin casting, and versatility make it suitable for various switchgear installations. With a range of accuracy and protection classes available, users can select a configuration that aligns with their specific requirements. Additionally, the option for customizing non-standard products ensures that the LZZBJ9-10 current transformer can cater to diverse customer demands.

Rongzhi Electric Power is a large-scale high voltage automatic reactive power compensation complete device manufacturer and supplier in China. We have been specialized in High voltage equipment for many years. Our products have a good price advantage and cover most of the South America, Middle East, Africa, Southeast Asia markets. We look forward to becoming your long-term partner in China.