In DC system, there are many earth faults including indirect earth fault, non-metal earth fault, loop earth fault, positive and negative earthing fault, positive and negative balance earth fault, multi-point earth fault.
GDCR1000C, GDCR1000D non-contact phase tester is a major breakthrough in traditional phase sequence detection method.
The errors, voltage, current, active and reactive power, phase, frequency, and power factor can be measured simultaneously, also vector figure and wiring results will be displayed.
GDPQ-5000 Power Quality Analyzer is a comprehensive test instrument carefully developed by our company and specially designed for field test of three phases, multi-functional and intelligent, concise man-machine operation.
GDPQ-300E Power Quality Analyzer is a portable device of testing and analyzing power system operation quality. It monitors and collects data in long running time, also provides harmonic analysis and power quality analysis.
This multi-functional instrument provides comprehensive scientific testing method for battery and UPS power supply maintenance. It has charging, discharging, single-unit detection, online monitoring and activation functions. This all-in-one test set reduce the labor intensity of maintenance personnel and enterprise costs.
The device is a special device for activating a valve-regulated lead-acid battery with a battery voltage of 2V, 6V, or 12V and a backward capacity due to sulfide crystallization of an electrode plate.
The GDUP-6000 (GDUP-3000) is a versatile portable pure sine wave on-site AC test power supply. Also known as on-site AC and DC test power supply, AC and DC emergency power supply, field test power supply, mobile test power supply.
It is widely used in power DC system, industrial control, communication, and battery charging equipment and for scientific research.
Regular maintenance and test is a “must-have” procedure for standby batteries. GDBT-8610B uses the most advanced AC discharge test method, which can accurately measure voltage and internal resistance of battery, to judge the battery capacity and technical status.
GDCP-510 Low Temperature Freezing Point Tester is compliant with GB/T 510 “Determination of Solidification Point for Petroleum Products” and GB/T 3535 “Petroleum Products―Determination of Pour Point.
GDKS-205 automatic open cup flash point tester is the device testing open cup flash point for petroleum products. It use module design which one host can control several testing furnace, to test different samples at the same time or separately.