Welcome to GRGTEST!
Service Hotline 400-602-0999
Your Industry Electricity Maintenance of Instrument Measurement
Maintenance of Instrument Measurement
We provide measurement, calibration, repair and maintenance services for general and special instruments and equipment in power system.
Service Introduction
GRG Test developed advanced measurement standards at home and abroad. The calibration technologies of high precision multi-function sources, power quality, AC/DC high pressure producer, large current, instrument for measuring partial discharge, strain meters, optical communication and other instruments are all at the leading position in China, which meet the measurement and calibration requirements of most instruments and equipment in the power system. It also provides diversified, thoughtful and fast measurement and calibration services such as calibration submitting agent, pick-up calibration, door-to-door calibration, metering entrusted management, urgent service, etc. 

Common Instruments (Part): 

Name of Instruments and Equipment S/N Name of Instruments and Equipment S/N Name of Instruments and Equipment
Voltage transformer 14 High voltage test transformer/control box 27 Level oscillator
Current transformer 15 DC high pressure producer 28 Circuit resistance tester
Transformer load box 16 High voltage electrostatic voltmeter 29 Clamp-on ground resistance meter
High-voltage switch mechanical properties test 17 Insulation oil dielectric strength tester 30 Earth resistance meter
Variable ratio bridge/variable ratio tester 18 Transformer winding deformation tester 31 Transformer comprehensive characteristic tester
High-voltage dielectric loss tester 19 Zinc oxide arrester tester 32 Transformer empty load loss tester
Relay protection tester 20 Triple frequency power generation device 33 Battery memory tester
Partial discharge tester 21 High current generation device 34 Ground resistance tester for large grounding grid
Electricity meter/electricity meter on-site tester 22 Digital high-pressure gauge 35 Digital multimeter
Lightning protection element tester 23 Selective level meter 36 Laser rangefinder/altimeter
Infrared thermometer 24 SF6 leak detector 37 Safety helmet testing machine
Base metal thermocouple for operation 25 Conductivity meter 38 Theodolite
Oil level temperature controller 26 Intelligent conductance salt density measuring instrument