Technical
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Technical Principles and Classification of Partial Discharge-Free Withstand Voltage Test Equipment
The non-glowing discharge withstand voltage test device is the core testing equipment in the field of insulation performance detection for high-voltage electrical equipment. The most core technical feature of this device is that the local discharge quantity of itself is extremely low under high-v...Read more -
Cable Partial Discharge Testing Equipment and Related Standards and Procedures
Partial discharge (PD) testing of cables is a core technical method for assessing cable insulation condition and identifying potential equipment defects. Currently, the relevant test standards are undergoing a critical update phase. Accurately understanding the key requirements and evolution tren...Read more -
Resistor Current Tester for Lightning Arresters: Application, Operation and Selection
The surge arrester resistive current tester is a dedicated device for testing the performance of zinc oxide surge arresters, suitable for both live-line testing and power-off maintenance scenarios. The core value of this equipment lies in accurately detecting various insulation defects such as va...Read more -
Technical Principles and Classification of Partial Discharge-Free Withstand Voltage Test Equipment
The zero partial discharge withstand voltage test device is a core testing instrument in the field of insulation performance evaluation for high-voltage electrical equipment. Its most critical technical feature is extremely low self-generated partial discharge under high-voltage output conditions...Read more -
Classification characteristics and applications of ultra-high voltage test transformers
I. Why are high-voltage test transformers needed? With the large-scale construction of ultra-high voltage transmission projects such as ±1100kV direct current and 1000kV alternating current, the insulation performance of power equipment has become the core bottleneck restricting the safe, stable ...Read more -
The application scope and advantages of the small-scale impulse voltage generator
In the process of modern electrical product research and production, insulation performance and transient overvoltage tolerance capacity are the two core indicators for evaluating the safety performance of electrical products. The small impulse voltage generator is a highly integrated and portabl...Read more -
Difference between a zero-partial discharge test transformer and a conventional test transformer
The core difference between the non-gassing test transformer and the conventional test transformer lies in the control standard for the local discharge quantity of the equipment itself. This difference directly determines the testing accuracy, application scenarios, and comprehensive performance ...Read more -
Equipment and Standard Procedures for Partial Discharge Testing of Transformers
1.1 Zero Partial Discharge Variable Frequency Power Supply As the control core of the entire test system, it provides a power source with continuously adjustable frequency and voltage. By precisely adjusting the output frequency, the entire test circuit can achieve resonance, providing a stable...Read more -
Operating Procedure Specification for High and Low Voltage Switchgear Power Test Bench
I. Equipment Overview The high and low voltage switch cabinet power-on test bench is a mobile test power supply device that integrates multiple voltage levels and current output capabilities. This equipment does not belong to precise measurement instruments for specific electrical parameters. Its...Read more -
Insulated Boot Voltage Withstand Tester Operating Procedures and Test Methods
Insulated boots are essential personal protective equipment for electric power workers and serve as a critical defense line to ensure personnel safety. The stability and reliability of their insulation performance directly determine the safety of personnel in high-voltage work environments. Accor...Read more -
Classification and Application Scope of Handheld SF₆ Gas Leak Detectors
Currently, gas leak detectors used at power sites are mainly divided into two categories: NDIR infrared quantitative leak detectors and halogen qualitative leak detectors. The handheld SF₆ gas leak detector is a classic pump-suction halogen qualitative detection device. Featuring hi...Read more -
Working Principle and Application of Very Low Frequency (VLF) High Voltage Generator
I. Working Principle and Technical Architecture The complete operating process of a very low frequency (VLF) high voltage generator consists of three core stages: frequency conversion & inversion, voltage boost, measurement, control and protection. All modules work in coordination to ensur...Read more