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General Information:
EPJF-8000 Hand-held Partial Discharge Detector can be widely used in partial discharge detection of power system, including high voltage switchgear, ring network cabinet, voltage / current transformer, transformer (including dry type transformer), GIS, overhead line, cable and other equipment insulation state detection, through the following indicators to measure the discharge degree of electrical equipment:
Partial discharge intensity detection: by measuring the discharge signal in one power frequency cycle, the partial discharge intensity is characterized according to the maximum value (dB) in the discharge pulse sequence.
Partial discharge frequency detection: by measuring the discharge signal in one power frequency cycle, the discharge pulse is extracted and the partial discharge frequency is characterized according to the number of discharge pulses.


Features:
-Configure different sensors to achieve partial discharge detection of almost all high-voltage electrical equipment.

-Provide time domain waveform, PRPD, PRPS and other discharge patterns to realize the analysis of different discharge types.

-Humanized man-machine interface facilitates data management of different devices.
-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.

-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.

-The test bandwidth range is 30kHz ~ 2.0GHz, which is suitable for detection principles of various frequency bands.


Technical Specifications:

TEV measurement

AE measurement

Measuring range

0-60 dBmV

Measuring range

-6dBμV to 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

130MHz

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) WIFI

3.5mm stereo headphone jack

External sensor input interface

Earphone

8 Ω minimum

SD card

Standard configuration 16G ~ 64G

Built-in battery

3.7V/5000mAh lithium battery

Operating hours

Approx. 6 hours

Charger

AC 90-264V or DC 5V

Operating temperature

-20 ~ 50

Humidity

20-85% relative humidity

Volume and weight

210*100*35(mm) 0.4KG(host)


More details on EPJF series handheld partial discharge detector please contact Wuhan EP Hipot Electric.