Multifunctional Partial Discharge

Product Introduction

The multifunctional partial discharge detector can be applied to partial discharge and temperature rise detection in power systems, including insulation status and temperature rise detection of equipment such as high-voltage switchgear, ring main units, and transformers (including dry-type transformers) . It measures the health of electrical equipment by measuring partial discharge intensity, partial discharge frequency, temperature rise, and environmental noise . The instrument can also detect sound wave location and vibration . It features high sensitivity, anti-interference capabilities, clear imaging, accurate positioning, and no ghosting. It can accurately identify the precise location of various minute discharges in power equipment, adapting to different time periods and complex environments to meet various testing applications .

Product Parameter (specification)

Technical Unit	Technical indicators	Technical parameters
Infrared thermal imaging module	Sensor type	Uncooled detector
	Maximum image size	512x384
	Response band	8-14μm
	NETD (Noise Equivalent Temperature Difference)	<45mK
	thermal imaging lens focal length	3.2mm F1.1
	Lens type	Wafer-level optics (WLO)
	Field of view	56°
	Adjustment method	Fixed focus
	Output frame rate	25Hz
Data Acquisition Module	TEV ground wave, AA air-type ultrasonic detection module	Working principle: capacitive voltage division, ultrasonic principle, built-in
		Sensor type: Square adsorption type
		Signal interfaces: BNC, SMA
		Measurement range: not less than 0 to 50 dBmV
		Operating frequency band TEV: 3MHz-100MHz , pulse counting error: ≤3%; Stability: The output value of the detector changes by no more than ±20% after power-on and continuous operation for 1 hour. AA: Air-coupled ultrasonic sensor, center frequency 200kHz
		Operating temperature: -40°C to +85°C
	HFCT high-frequency sensor	Working principle: Rogowski coil
		Sensor type: Openable ring structure
		Operating frequency band: 1MHz-30MHz
		Sensor transmission impedance: ≥5mV/mA;
		Protection rating: IP68
		Signal interface: N-50 socket or BNC connector optional
		Sensor inner diameter: 65mm or 45mm available
		Material: Alloy (meets 96-hour salt spray test requirements)
		Sensitivity: <5pC
		Detection error: ±1dB
		Resolution: ±0.1dB
		Dynamic range of detection: 70dB
		Operating temperature range: -40℃ to +85℃
	AA Non- contact Sensor	Center frequency: 40.0±1.0KHz , Detection sensitivity: ≤10pC
		Bandwidth (-6dB): 1.2 kHz ; Linearity error: no greater than ±20%.
		Transmitted sound pressure level: 120dB
		Receiver sensitivity: -63dB min
		Impedance: 900
		Capacitance at 1kHz: 2400 picofarads ; Stability: Output value variation after power-on and 1 hour of continuous operation is no greater than ±20%.
	A E contact sensor	Detection frequency band: not lower than 20kHz to 180kHz ; Detection sensitivity: ≤10pC; Linearity error: no greater than ±20%; Stability: The output value of the detector changes by no more than ±20% after power-on and continuous operation for 1 hour.
	UHF ( Ultra- High Frequency) Sensor	Sensor frequency: 300MHz-1500MHz
		Casing: Metal
		Detection sensitivity: not less than 1 pC
		Antenna type: Butterfly
		Gain: +5dBi
		Matching impedance: 50Ω
		Sensor equivalent height: not less than 10 mm
		Operating temperature: -40℃ to +85℃
		Protection rating: IP67
Wave gatherer	Focused wave type AA flexible probe sensor	Used for partial discharge detection of overhead lines
earphone	Headphone sound monitoring	Equipped with anti-interference stereo headphones for real-time sound monitoring to help determine the level of discharge.
barcode scanner module	Support range	One-dimensional barcode, two-dimensional barcode
barcode scanner module	Reading accuracy	One-dimensional barcode: code39 ≥ 4.9mil, QR code: QR ≥ 10mil
Battery	capacity	5000mAh
	Charging port	Type-C direct plug
	Voltage	3.7v
Data processing terminal	Software System	Supports Android
	Data Upload	It supports uploading data to the cloud platform via 4G and 5G mobile networks.
	Communication function	Supports GPS/AGPS/GLONASS/BeiDou/GALILEO/QZSS/NavIC/Bluetooth/WIFI
	Storage function	It has 256GB of built-in memory and supports direct reading or export of data from USB flash drives.
	weight	Less than 1000g
	runtime	No less than 12 hours
	Instrument screen	The device features an OLED display with a built-in color high-definition LCD screen, supporting dual-screen display, 1-120 Hz LTPO adaptive refresh rate, 1440 Hz high-frequency PWM dimming, and a 300 Hz touch sampling rate. It can also be operated via a tablet app.
	resolution	FHD+ 2832 × 1280 pixels
	lens	The all-in-one design is used to record on-site personnel operation procedures and equipment operation, and supports uploading to a cloud platform. It features a 50MP ultra-wide-angle camera, a 40MP ultra-wide-angle camera, and a 12MP periscope telephoto camera.
	zoom mode	Supports 5.5x optical zoom with autofocus.
	Video recording	It supports 4K (3840 x 2160) video recording to record the on-site inspection environment and equipment operation status, and supports uploading to the cloud platform.
	Protection level	IP68
	Power-on protection	Supports 3D face recognition and fingerprint recognition.
	Thermal imaging detection function	Supports switching between maximum and minimum temperatures and pseudo-color. Celsius and Fahrenheit temperature settings are also supported. Infrared images can be saved to the photo album and simultaneously to the detection record, allowing users to directly share the results.
	Data Management	1. It can save various types of signal maps and dynamic data, including two-dimensional and three-dimensional images, and can query, export, and manage them; 2. Data can be transmitted to other devices via wired or wireless means. 3. Supports recording the current detection data and generating a detection report when abnormalities or alarms are detected . 4. The host can save ultra-high frequency, transient ground voltage, high frequency and ultrasonic detection data . 5. Supports sharing ; data can be uploaded to the cloud platform or viewed in the detection records.
	Detection function	1. The instrument should possess anti-interference techniques such as frequency domain filtering, time domain filtering, noise separation, and shielding isolation to effectively filter out various complex interference signals. It should also have functions such as windowing, blanking, and scale adjustment to eliminate fixed-phase interference. 2. The instrument should have two-dimensional and three-dimensional detection windows such as trend graphs, PRPD, PRPS, correlation, flight window, trend window, and discharge analysis window. 3. The instrument has the function of recording single-cycle and continuous waveform data, and can repeatedly play back the real process of on-site detection, providing data support for secondary waveform analysis. 4. The instrument is equipped with a signal spectrum database, which stores typical data of partial discharge signals caused by metal particles, corona discharge, moving electrodes, and insulation defects, as well as typical data of various noise signals (such as radar and mobile phone signals). The measured signal can be compared and analyzed with the typical spectrum data stored in the database through the "imprint comparison" function to determine and identify the signal category. 5. The instrument has the function of positioning based on the amplitude comparison of the detection signal and the function of positioning based on the time difference between two detection signals.
	Signal synchronization	It supports internal synchronization, external synchronization, and virtual synchronization; high-voltage power supplies can be directly connected to the synchronization interface for synchronization; the external synchronization unit and the host are synchronized via wireless communication.
Specification	Size and weight	2 03 mm* 127 mm* 50 mm, 0. 9 KG

Product Features

Use the built-in barcode scanning function of the detector to identify the device, quickly obtain the device's identity information, and complete the daily inspection of the device.
Select different sensors to achieve different detection functions;
The main unit comes with a built-in color high-definition LCD screen to display the device's operating status in real time, and the user-friendly human-machine interface facilitates data management for different devices.
It has a built-in intelligent AI processing chip that automatically generates test analysis results after the test is completed.
The instrument has 6 channels for measuring built-in ultrasonic sensors and transient ground voltage (TEV) sensors. It can be connected to external high-frequency current sensors (HFCT), ultra-high frequency sensors (UHF), contact ultrasonic sensors (AE), focused wave type AA sensors, and focused waves. It has infrared temperature measurement and imaging functions and can display the detection effect in different forms, including PRPD and PRPS display effects.
It adopts a non-invasive detection method, which does not require power outages or additional high-voltage sources during the test, making it more convenient to use than traditional pulse-type multi-functional partial discharge detectors ;
The test bandwidth range is applicable to various frequency bands and the detection principle .
The product structure features a built-in non-contact ultrasonic sensor and a built-in TEV sensor at the front end of the main unit, enabling partial discharge detection in high and low voltage switchgear without external sensors . An optional infrared thermal imaging sensor allows for infrared detection of the equipment, displaying its minimum and maximum temperatures. A built-in QR code scanning sensor at the front end allows for equipment identification by scanning QR codes. Integrated detection accessories can connect to external high-frequency current sensors, ultra-high-frequency sensors, and contact ultrasonic sensors.
PRPD mode, negative corona, positive corona, floating discharge, surface discharge, or internal component discharge ; automatic diagnostics ; configured data conversion software system, including cloud software services and offline software. It can automatically determine the severity of partial discharge and provide corresponding recommendations for appropriate measures; intelligent and systematic generation of detection reports;
Acoustic Leakage Measurement ( Optional ): 124 high-sensitivity , low-noise, and interference-resistant MEMS microphone detectors; real-time sound visualization ; simultaneous detection and location of multiple discharge points; diameter of each small probe hole ≥ 5.5mm; detector detection surface diameter > 15.5cm; detection distance : 0.1m to 210m ; automatic detection at 50/60 Hz ; automatic analysis of sound wave type; automatic identification of discharge, vibration, sound waves , leakage , etc.; multi -point mode and single-point tracking of discharge location, sound location, or leakage point .

Product Application

1. Power Distribution Equipment
Suitable for switchgear, ring main unit, cable branch box, transformer, dry-type transformer partial discharge and temperature detection.

2. Transmission Equipment
Applied to cable lines, overhead lines, GIS, insulating bushings for live PD detection and accurate location.

3. Industrial & Special Power Supply
Used in petrochemical, railway, aerospace, data center power supply equipment for insulation state evaluation.

4. Intelligent Patrol & Safety Monitoring
For unmanned substation, smart grid, preventive maintenance to realize early warning and hidden danger detection.

Company Qualifications

FAQ

Q: Are you a factory or a trading company?

We are a professional manufacturer of testing equipment.

Q: How is the after-sales service?

A: The warranty period is 12 months. After the warranty period, we also provide lifetime service paidrepair or service.

Q: How is the after-sales service?

A: The warranty period is 12 months. After the warranty period, we also provide lifetime service paidrepair or service.

Q: What about transportation?

A: It depends on your requirements. We can ship to your airport by air, to your seaport by sea, or to your office by courier.
We also accept cooperation with your shipping agent.

Q: Are your keyboard, interface, software, and manuals in English?

A: Yes, if you are using the English version of the keyboard, interface, software, and manual and require other languages, please contact us for confirmation.

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