Product Details


■ Product Overview

The four-channel digital partial discharge detector is suitable for transformers, instrument transformers, generators, surge arresters, bushings, and other equipment across various voltage levels and capacities. GIS Partial discharge detection and online monitoring of capacitors, power cables, switches, and other high-voltage electrical equipment.

■ Technical Specifications

Capacitance range of the device under test 6pF~250 mu F.

Detection sensitivity :0.1 pC

Sampling accuracy :12bit ; Sampling rate :20M/S.

Display operating mode

① Display method : Ellipse, Sine, Straight Line

② External trigger synchronization signal input voltage :10~200V , input power <1 Volt-ampere.

Filter bandwidth :3dB Low-frequency end frequency fL point 102040kHz file ,3dB High-frequency end frequency fH point 80200300kHz file ,fL and fH It can be flexibly configured to form various filter passbands.

Signal amplifier

① Gain adjustment : Gain is divided into coarse adjustment and fine adjustment; the coarse gain is further divided into... 5 file , Inter-channel gain difference 20dB(10 times ), Error ± 1dB Adjustment ; Fine-tuning range of gain >20dB

② Asymmetry in the amplifier’s positive and negative polarity responses :<1dB.

Partial Discharge Signal Measurement : It can measure partial discharge signals in display modes such as continuous and magnification, with an error of ±. 5%

Product Selection Chart

Model number

NDJF2008 Intelligent Partial Discharge Detector

Model number

NDJF2003 Partial Discharge Detector

Model number

NDJF2010 Digital Partial Discharge Detector

Number of channels

Three-channel

Number of channels

Single channel

Number of channels

2 One electrical signal interface, one external synchronization interface

Power supply

220V+22V 50HZ

Measurement range

0.1pC-10000nc

Sampling rate

0.5M1M2.5M5M10M20M Optional

Capacitance range

6PF--250 mu F

Capacitance range

6pF~250uF

Sampling accuracy

12bit


Service system


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