GDJF-4 Handheld Partial Discharge PD Detector
Product Description
GDJF-4
Handheld Partial Discharge PD Detector (with Discharge Patterns)
The front end of the mainframe is equipped with a non-contact ultrasonic sensor and a built-in TEV sensor. The detection of partial discharge of high and low voltage switchgear can be realized without external sensor. If it is necessary to detect partial discharge of transformer, GIS, overhead line, cable and other equipment, it is only necessary to connect the corresponding special sensor through the sensor expansion port at the bottom of the host. The host can automatically switch the measurement mode according to the different sensors. The sensors that can be externally connected to this product can refer to the optional part of Table 1 in the product configuration list.
Table 1
1. Features
1) Configure different sensors to achieve partial discharge detection of almost all high-voltage electrical equipment;
2) Provide time domain waveform, PRPD, PRPS and other discharge patterns to realize the analysis of different discharge types.
3) Humanized man-machine interface facilitates data management of different devices;
4) Built-in ultrasonic sensor and transient ground voltage (hereinafter referred to as TEV) sensor, which can be connected with special sensors such as transformers, GIS, overhead lines, cables, etc.;
5) 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;
6) The test bandwidth range is 30kHz-2.0GHz, which is suitable for detection principles of various frequency bands;
2. Application
Power generation and power distribution enterprises.
Railway system.
Power supply system for petrochemical industry.
Aerospace testing.
Automatic detection
3. Technical Index
TEV Measurement | AE Measurement | ||
Measuring range | 0-60 dBmV | Measuring range | -6dBμV - 68dBμV |
Resolution | 1dB | Resolution | 1dB |
Precision | ±1dB | Precision | ±1dB |
Maximum pulse per cycle | 1400 | Frequency Range | 20-200 kHz |
Measurement frequency band | 3-100MHz | ||
AA measurement | UHF measurement | ||
Measuring range | -6dBμV-68dBμV | Detection frequency | 300-2000MHz |
Resolution | 1dB | Measuring range | 0-60 dBmV |
Precision | ±1dB | Sensitivity | <1dBm |
Sensor center frequency | 40 kHz | Sensor frequency band | 300-2000MHz |
HFCT measurement | |
Sensor transmission impedance | 5mV/mA |
Detection frequency | 1-30MHz |
Sensitivity | ≤50pC |
Hardware | |
Shell | ABS |
Screen | 4.0 inch RGB LCD screen, resolution 800*480 |
Sampling accuracy | 12bit |
Synchronization mode | Internal synchronization, external synchronization |
Connector | USB interface (also charger input) 3.5mm stereo headphone jack External sensor input interface Wifi |
Earphone | 8 Ω minimum |
SD card | Standard configuration 16G - 64G |
Built-in battery | 3.7V/5000mAh lithium battery |
Operating hours | Approxi. 6 hours |
Charger | AC 90-264V or DC 5V |
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Contact Person: Christine Gou
Whatsapp/Wechat: +86 15123029885
Mobile: +86 15123029885
E-mail: gold05@hy-industry.com