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GDPD-PTU PD Online Monitoring System for Oil Transformer
The aging and damage of the internal insulation of the transformer mostly starts from local discharge. The reason for local discharge is that the electric field is too concentrated at a certain point, or the electric field strength at a certain point is too large. At present, the main methods for detecting transformer local discharge faults are: UHF ultra-high frequency monitoring method, HFCT high-frequency pulse current local discharge measurement method (pulse current method), ultrasonic local discharge measurement method (ultrasonic method), and oil gas chromatography analysis method.
With the continuous expansion of the power grid, it is becoming increasingly important to improve the safe operation level of electrical equipment, carry out online monitoring of partial discharge of transformers, analyze the insulation status of transformers in combination with intelligent diagnostic expert systems, and determine the nature of insulation defects in a timely manner.
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GDYT-10/100 Partial Discharge Testing System
GDYT-10/100 Partial Discharge Test System is mainly used for testing frequency voltage insulation level of various insulation materials, insulation structure and electrical products, also as partial discharge frequency testing power supply for testing object such as transformer, mutual inductor and lightning arresters. It is widely used in electrical manufacturing, power operation departments, research institutes and universities.
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GDUVI-41 Partial Discharge UV Imager
GDUVI-41 UV imager adopts ergonomic design and key operation, which is very suitable for daily maintenance of various high-voltage electrical equipment. The instrument adopts solar-blind technology to simultaneously image the visible light and ultraviolet light paths, and realizes the location of the ultraviolet light-emitting position through the real-time synchronous fusion of the two images, which can be detected around the clock. The video display can display the ultraviolet video and the visible light video separately, or the superimposed composite video, which can count the ultraviolet light spots in the selected range and provide the measurement data.
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GDJF-2006S Partial Discharge Detector
GDJF-2006S Digital Partial Discharge Detector is widely used for detecting partial discharge of high voltage equipment such as power transformers, instrument transformer, HV circuit breaker, GIS, Zinc oxide surge arrester, power cable. It also can make type tests and monitor insulation operation.
GDJF-2006S includes main unit, PD software, current transformer, input unit, calibration pulse generator, input adapter, antenna amplifier and connection cable etc.
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GDPD-316M Handheld Partial Discharge Detector
The GDPD-316M handheld Partial Discharge Detector uses smart quick intelligent power test system (Soft No. 1010215, trademark registration number 14684781). It can flexibly configure various sensors according to different products to be tested. TEV, ultrasonic and HFCT are suitable for partial discharge detection of high-voltage switchgear and ring network cabinet; Ultrasonic and UHF are suitable for detection of insulating status of GIS; Ultrasonic and HFCT are suitable for detection of insulating status of power cable. The built-in expert diagnosis system can analyze the test data and judge the discharge energy and possible parts. It is widely used in electric power and railway.
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GDPD-505 Portable Partial Discharge Detector
GDPD-505 is a portable multi-functional PD online detector, which is suitable for testing transformers, GIS, switch cabinet, power cables, lightning arrester and CT/PTs.
The system includes detector, software, HFCT(high frequency current transformer), calibration pulse generator, 40kHz ultrasonic sensor, 150kHz ultrasonic sensor, UHF sensors, TEV sensors, Acoustoelectric sensors and some connection cables.
It uses pulse current, ultrasonic and UHF technology, to detect and analyze HF electromagnetic signals and ultrasonic signals of internal transformers and GIS, so that to detect and evaluate the running status of GIS, transformers.
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GDJF-2006 Partial Discharge Analyzer
GDJF-2006 Digital Partial Discharge Detector is widely used for detecting partial discharge of high voltage equipment such as power transformers, instrument transformer, HV circuit breaker, Zinc oxide surge arrester, power cable. It also can make type tests and monitor insulation operation.
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GDPD-414H Handheld Partial Discharge Detector
The GDPD-414H handheld Partial Discharge Detector uses smart quick intelligent power test system (Soft No. 1010215, trademark registration number 14684481), which can flexibly configure various sensors according to different test objects.
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GDPD-3000C Portable Partial Discharge Detector
GDPD-3000C Portable Ultrasonic Partial Discharge Detector uses advanced cloud computing and automatic modeling technology to achieve the partial discharge signal measurement, recording, transmission, storage, analysis and exchange, providing powerful technical support for on-site measurement of partial discharge.
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GDPD-313P Hand-held Partial Discharge Detector
The hand-held partial discharge detector is used to detect and measure the instantaneous ground voltage discharge and surface discharge in the switch cabinet and display the discharge waveform and discharge amount in real time on the LCD screen. The instrument adopts a pistol-portable design, which can be scanned and detected directly on the switchgear shell without any influence or damage to the operation of the switchgear. At the same time, the measured signals can be stored and played back on the TF card. The matching headphones can hear the sound of the discharge.
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HV-OWS-63 Oscillating Wave Test System (OWTS) for On-site PD Diagnostics of Cables
HV-OWS-63 Oscillating Wave Test System (OWTS) for On-site PD Diagnostics of 10KV Cables is an integrated partial discharge location and management system. Partial discharge test with DAC waves，Test frequency varies from 50Hz to hundreds of Hertz under damping AC voltage.
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GDPD-306M Portable Ultrasonic Partial Discharge Detector
GDPD-306M is widely used in the partial discharge detection of power systems. Including high voltage switchgear, ring mains, voltage/current transformer, transformer (include dry type transformer), GIS, overhead lines, cables, and other equipment insulation state detection.
Partial Discharge Measurement Device
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