GDPD-300UF Ultrasonic Partial Discharge Detector

• Type: Universal Testing Machine
• Load Way: Electronic Load
• Loading Method: Dynamic Load
• Display: Digital
• Control: Computer Control
• Weight: 0-100Kg
• Model NO.: GDPD-300UF
• Power Source: AC220V
• Detection Frequency Band: AE:20~200kHz; TEV: 3~100MHz
• Warranty: 1 year
• Transport Package: Standard Export Wooden Box
• Specification: ISO
• Trademark: HV Hipot
• Origin: Wuhan, China

Product Description

GDPD-300UF Ultrasonic Partial Discharge Detector

GDPD-300UF 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. AE(Ultrasonic) and TEV(Transient Earth Voltage) method is acknowledged and suitable technology to be used in online partial discharge detection.

The following indicators are used to measure the degree of discharge of electrical equipment: 
Partial discharge intensity detection: By measuring the discharge signal in a power frequency cycle, the intensity of the partial discharge is characterized according to the maximum value (dB) in the discharge pulse sequence.
Partial discharge frequency detection: The device measures the discharge signal within a power frequency cycle, extracts the discharge pulses and characterizes the frequency of partial discharges according to the number of discharge pulses.


Features

1. With different sensors to achieve partial discharge detection of almost all electrical equipment.
2. User-friendly man-machine interface facilitates the data management of different devices, including the traceability of historical data change trends, horizontal and vertical data analysis, and realizes a 360° comprehensive diagnosis of the tested device.
3. Built-in ultrasonic sensor and transient earth voltage (hereinafter referred to as TEV) sensor, also can be connected with external special sensors for transformers, GIS, overhead lines, and cables.
4. It adopts non-intrusive detection method, no need to power off during the test process, no need to configure additional high voltage source, it is more convenient to use than traditional pulsed partial discharge detector.
5. The test bandwidth range is 30kHz ~ 2.0GHz, suitable for detection principles of various frequency bands.

Specifications
 

TEV Measurement		UHF Measurement
Measurment range	0-60dBmV	Detection frequency band	300~2000MHz
Resolution	1dB	Measurement range	0-60dBmV
Accuracy	±1dB	Accuracy	<1dBmV
Max.pulse per cycle	1400
Measurement frequency band	3~100MHz
AA measurement		AE measurement
Measurement range	-6dBμV~68dBμV	Measurement range	-6dBμV~68dBμV
Resolution	1dB	Resolution	1dB
Accuracy	±1dB	Accuracy	±1dB
Sensor center frequency	40kHz	Frequency range	20-200kHz
HFCT measurement
Sensor transmission impedance	5mV/mA
Detection frequency	1~30MHz
Sensitivity	≤50pC
Hardware
Shell	ABS
Display	4.0 inch RGB LCD screen
Connector	USB interface(charger port) 3.5mm stereo headphone jack External ultrasonic sensor input
Headphone	8 ohm minimum
SD card	Standard 16G~64G
Built-in battery	3.7V/5000mAh lithium battery
Working time	About 6 hours
Charger	AC 90-264V or DC 5V
Working temperatures	-20~+50ºC
Humidity	20~85% relative humidity
Dimension, weight	210*100*35(mm), 0.4kg (main unit)