Circuit Breaker Switch Test Instrument

The RDHL-200X Loop Resistance Tester delivers high-precision measurement with a constant current output of up to 200A and a maximum output voltage of 10V. It can accurately measure micro-ohm level resistance, ensuring reliable and repeatable test results with stable performance.

Designed for wide applications, this tester is ideal for measuring contact and loop resistance in switches, electrical appliances, cables, wires, and welds. It fully meets the on-site maintenance requirements of high-voltage switches in power utilities and the production testing needs of high-voltage switch manufacturers.

The RDHL-200HX is a compact, lightweight handheld tester powered by a lithium battery, making it easy to carry and operate in any field environment. Its portable design ensures you can perform tests conveniently, whether you're on-site for maintenance or in a factory setting.

This digital instrument delivers accurate, stable measurements of contact resistance and loop resistance for switches, electrical appliances, cables, wires, and welds. It meets the strict testing requirements of power departments and high-voltage switch manufacturers, ensuring dependable results for both maintenance and production quality control.

The circuit Breaker Analyzer is a special instrument developed by the company to meet the needs of various high-voltage switch operating characteristics tests. The Circuit breaker dynamic tester can accurately measure mechanical dynamic characteristics parameters of low-oil, multi-oil, vacuum, SF6 and other high-voltage circuit breakers of various voltage levels

The RDHL-100P Earth Loop Impedence Testers is a high-precision device for measuring loop resistance in switchgear, with 0.01 μΩ resolution and advanced features for high-voltage switch maintenance and testing.

The RDHL-200A Ground Loop Resistance Tester is a high-precision, digital instrument developed by our company in line with IEC standards. Utilizing high-frequency, high-power constant current switching technology, it accurately measures micro-ohm contact resistance and is ideal for testing switchgear, cables, and welds.

RDHL-200H contact resistance tester is designed for measuring loop resistance of Switching Control Equipment using High-frequency switching power supply technology and digital circuit technology. Test current of the Tester is DC-100A or DC-200A which is recommended in the national standards. The tester can measure the loop resistance at those values and display results in digital. It is high precision and good stability and can meet most power systems’ requirements in onsite high-voltage switches maintenance and high-voltage switches factory loop resistance measurement. (It’s performances accurately and stably)

The instrument panel is ergonomically designed, in line with operating practices, use high-frequency switching power supplies and digital circuit technology for measuring the contact resistance of the circuit switch control device. Test current is DC 100A. In the case of DC 100A can be directly measured contact resistance test result with a large-screen LCD display, and with data storage, print, time settings and other functions, and another gear 50A for user selection; custom test time, maximum 599S, much larger than the standard requirements of 60S; resolution 0.01μΩ and very stable. Meet the power; the electricity sector on-site high voltage switch maintenance and high-voltage switch factory contact resistance testing requirements.

RDZK-IV Circuit Breaker Vacuum Bottle Tester tests vacuum degree of arc extinguishing chamber without dismantling, using excitation coil and magnetic controlled discharge method. High precision at 10-5 Pa, widely used in power, steel, petrochemical, textile, coal, railway sectors.

The RDGC-8C is a Switch Dynamic Characteristics Test Set accurately measures the mechanical characteristics of high voltage circuit breakers, including less oil, more oil, vacuum, and SF6 types. This tester is essential for dynamic analysis, ensuring the safe and efficient operation of the power system.