110kV/220kV Substation Series Testers

GTPD-92 PARTIAL DISCHARGE(TEV/ULTRASONIC/UHF/HFCT） DETECTOR - 副本

With TEV/Ultrasonic/UHF/HFCT four detect modes
Provides discharge amplitude and spectrum waveform of PD
Provide 2D and 3D map storage and readout functions
Android system, integrated 5 million pixel camera
Product description: Partial discharge detector is a multi-functional handheld instrument. It is based on TEV, ultrasonic, UHF and HFCT detection methods to test the partial discharge of HV equipment. It can read the part
INQUIRY

Partial discharge（PD） is a pulsed discharge that produces a series of physical phenomena and chemical changes such as light, sound, electrical and mechanical vibrations in and around electrical equipment. When insulation defects occur in high-voltage electrical equipment, partial discharge signals will be generated. Through the detection and analysis of these signals, it can be judged whether there are hidden dangers of insulation inside the high-voltage electrical equipment, and the further expansion of potential accidents can be prevented. So regular PD testing is critical as part of a condition-based management (CBM) regime. This enables operators to obtain baseline PD readings to assess insulation quality, locate PD activity and determine maintenance goals

GTPD-92 partial discharge detector developed by our company is a multi-functional hand-held instrument. It is based on TEV, ultrasonic, UHF and high-frequency current(HFCT) detection methods to test the partial discharge of the HV equipment, and can read the partial discharge amplitude and spectrum. The waveform can provide storage and readout functions of two-dimensional and three-dimensional maps, etc., and can better evaluate the partial discharge of electrical equipment. partial discharge detector is suitable for partial discharge detection of electrical equipment such as GIS, switch cabinets, transformers and power cables. The equipment is portable and easy to operate, and all detections do not have any impact on the operation of high-voltage equipment. The product can observe the measurement signal in multiple cycles, identify the frequency of discharge, and analyze it through various modes, which can clearly determine the fault.

The partial discharge detector adopts a brand-new design and uses the currently popular Android system, which is easier to operate and use. In addition, it integrates 5 million pixel cameras to take pictures to facilitate inspection records; RFID is conducive to expanding the application of the Internet of things; internal integration discharge type library is provided to facilitate the comparison and verification of discharge conditions.

Host parameters
Detectable channels	4 Channels 1 TEV 1 US 1 UHF(Wireless, optional) 1 HFCT(Wireless, optional)
Sampling accuracy	12bit
synchronous mode	Internal synchronization, external synchronization, and photosynchronization
TEV
Detecting bandwidth	3M-100MHz
Detecting range	0～60dB
Detecting deviation	±2dB
resolution	1dB
Max.number of pulses per cycle	720
Mini. Pulse frequency	10Hz
Output interface	Standard SMA connection host
Non-contact US
Center frequency	40kHz
Resolution	0.1uV
Accuracy	±0.1uV
Detecting range	0.5uV～1mV
Output interface	Standard SMA connection host
Contact US
Center frequency	20kHz～300kHz
Resolution	50 Ω
Accuracy	0.1mV
Detecting range	0.1mV～1V
Output interface	Standard SMA connection host
UHF(optional)
Detecting bandwidth	300MHz～1.5GHz
Output mode	BNC interface-Signal conditioning unit, wireless connection to the host
Receive mode	Antenna receive
Transmission mode	Coaxial cable
Detecting sensitivity	≤60dBm
HFCT(optional)
Detecting bandwidth	1M-30MHz
Transfer impedance	>5mV/mA (10MHz )
Output impedance	50 Ω
Detecting range	-20~80dB
Detecting deviation	±1dB
Accuracy	1dB
Output interface	BNC Interface-Signal conditioning unit, wireless connection to the host
Hardware
Display screen	A 5.0-inch TFT True color LCD screen
Resolution	800×480
Operation mode	Touch / button
Storage	TF Card
Sound interface	3.5 mm Stereo headphone jack
Power	DC-12V/2A DC Power
Extended function	USB-Type/500Mega pixel camera/RFID/Wi-Fi/Bluetooth
Power
Internal Power	battery powered（4800mAH 7.4V）
Working time	About 7 hours, and the filling time is about 3 hours
Dimension
L×W×H	235 mm×133 mm×48 mm
Weight	0.85 kg
Environment
Use ambient temperature	-20℃～50℃
Storage environment temperature	-40℃～70℃
Humidity	10%-90%（Non-condensation）
Height above sea level	≤3000 m

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