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GDF-5000 Online Insulation Monitoring Device for DC System
GDF-5000/OL Online Insulation Monitoring Device for DC System is used for real-time online monitoring of insulation status of DC bus and branch. This device adopts the detection method of DC balanced resistance.
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GDCR-3200C Double Clamp Multifunctional Earth Resistance Tester
GDCR3200C Double Clamp Multifunctional Earth Resistance Tester is specially designed and manufactured for on-site measurement of grounding resistance, soil resistivity, grounding voltage, grounding line leakage current, AC current and DC resistance.
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GDJR-200D Single Phase Electronic Thermal Relay Calibrator
GDJR-200D Single Phase Electronic Thermal Relay Calibrator is mainly used for the setting and verification of various electrical equipment. With features of reasonable design, convenient operation and large output power, it is widely used in electric test sites of power system, railway, petrochemical, metallurgy and mining enterprises.
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GDJB-II Secondary Current Injection Test Set
GDJB-II type Single Phase Relay Protection Tester is the updated calibration device for relay testing. It shows clear data,operation is easy.
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GDJB-1200A Six Phase Relay Protection Test Set
GDJB-1200A Six Phase Relay Protection Microcomputer Test Device plays a key role in operating electricity power systems reliably and safely. It is the testing device used in professional field of microcomputer protection, relay protection, excitation measurement, fault recorder.
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GDJB-802 Three Phase Secondary Current Injection Relay Test Set
GDJB-802 3 Phase Secondary Current Injection Relay Protection Test Device plays a key role in operating electricity power systems reliably and safely. It can automatically judge over-current, over-voltage, overload, short circuit, high temperature, abnormal data and warning prompts for misoperation.
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Online Monitoring System for Metal Oxide Arrester
There are usually two ways to monitor the insulation condition of high voltage electrical equipment in substations: online monitoring and live (portable) online detection.
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GDYZ-302W Metal Oxide Arrester (MOA) Tester
GDYZ-302W Metal Oxide Arrester Tester is is composed of a host, a detector, and an insulating rod. The host and the detector adopt wireless communication, the communication distance is 30 meters, the host can remotely open or close the clamp head of the detector to complete the test process, and the host can display the current test value and the status of the clamp head in real time. The detector uses a micro motor to drive the opening or closing of the clamp head. The clamp head is made of high-performance permalloy, which has super anti-interference ability and is hardly affected by external magnetic fields. The resolution is as high as 1uA. The detector can be connected to an insulating rod for testing of zinc oxide surge arresters on high-voltage lines. The meter can also be used as an ultra-high-precision clamp-on leakage current meter.
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GDYZ-301 Zinc Oxide Surge Arrester Tester
GDYZ-301 Lightning Arrester Tester is the special equipment of testing zinc oxide arrester electric performance. It is suitable for testing various voltage levels zinc oxide arrester with or without electricity, thus to detect hazards inside the device caused by wet insulation or metal oxide varistor (MOV) aging.
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GDYZ-301A Zinc Oxide Surge Arrester Tester
GDYZ-301A Automatic Zinc Oxide Surge Arrester Tester contains below three functions:
Resistive current test
Current meter calibration of monitor
Counter action test of monitor
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FCZ-IV Discharge Counter Calibrator
FCZ-IV Discharge Counter Calibrator is used to verify the reliability of various arrester counter action.The reliability of counter action is very important for power system. It is an important parameter to record the number of lightning strikes of arrester in normal operation. It can provide an important basis for the personnel of power system to test the arrester. This instrument is mainly used for high voltage arrester above 35kV.
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GDYZ-302 Wireless Zinc Oxide Surge Arrester Tester
GDYZ-302 Zinc Oxide Arrester Live Tester is a special instrument used to test the electrical performance of Zinc Oxide Arrester.
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