Partial Discharge Detector

HTJF-9002 Ultrasonic Partial Discharge Detector

The local discharge signal is received to determine the presence and location of partial discharge

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Product Introduction

Ultrasonic discharge detector is applied to partial discharge live circuit detection of transformer, reactor, generator, transformer, bushing, GIS, power cable, power capacitor, CVT, arrester, high voltage switch, switch cabinet and other ac/dc high voltage electrical equipment with various voltage levels and capacities.

When partial discharge occurs, physical phenomena such as ultrasonic wave, heat wave, light wave and magnetic wave will be generated. The ultrasonic wave will spread around in the form of spherical wave with the sound source as the center. Htjf-9002 Ultrasonic discharge detector USES the Ultrasonic signal generated by local discharge to judge the existence and location of local discharge. Combined with the real-time images and data, it can quickly diagnose the status of local discharge. The tester integrates transient voltage to ground and ultrasonic.

Product Names:partial discharge detector、ultrasonic partial discharge detector

Product Parameters

TEV Performance Parameters

Sensor capacitive
Measuring range -5 ~ 60dB, step length 1dB
Resolution 1dB

Ultrasonic Measurement Parameter

Measuring range -11db ~ 68db, step length 1dB
Resolution 1dB
Sensor center frequency 40kHz±1kHz
Sensor diameter 16mm

Instrument hardware index

Indicator color backlit LCD
Display resolution 320X240
Transverse sensitivity 50us/Div ~2m s /Div
Vertical sensitivity 4uv/Div ~400uv/Div (ultrasonic)
400uv/Div ~40mv/Div(TEV)
Trigger mode auto, norm,sign
PC connection interface USB connection
Charging way special charger
Data is stored support SD card storage
Operating time each set will last 4 to 5 hours after being fully charged
Controller membrane keyboard
Connector 2.1mm low voltage dc charger input
3.5mm stereo headphone socket
external ultrasonic sensor input
Headset minimum 8 ohms

Work environment

Working temperature -10~ 45 ℃
Humidity 0-90% RH no condensation


Size main engine 245x132x45mm; Paraboloid diameter: 275mm
Weight 1kg (host) 0.5kg (sensor)

Battery charger

Rated voltage 90 ~ 264V AC
Frequency 47 - 63Hz
Charging voltage 12V DC
Charging current 500 mA
Time required for full charging 5 hours

Parameters of handheld ultrasonic concentrator

Sensor center frequency 40 kHz
Sensor diameter 16mm
Outer diameter of parabolic reflector 275mm
Standard diameter of parabolic reflector 250mm
Weight 0.6 kg
Working temperature -10 - 50 ℃
Humidity 0-90% relative humidity, no condensation

1. The appearance of the product shall be subject to the actual product, Technical parameters and model are subject to change without notice. In case of misappropriation or copying, legal liability will be investigated.

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Product Characteristics

Product Picture

Product attachment drawing

Product details

Product Certificate

Enterprise products in strict accordance with international and national standards and rules of industry production, through the national, provincial and municipal electric power research institute and electric power authorities detection, measuring center, fully passed the ISO9001 international quality management system certification, the licence for manufacturing measuring instruments of the People's Republic of China, GB/T19001-2016 quality management system requirements, GB/T24001-2016 environmental management system requirements, GB/T45001-2020 occupational health and safety management system requirements.

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