Digital AC DC Partial Discharge Analyzer

Product Introduction

The AC/DC Partial Discharge Analyzer features an integrated design for user-friendly operation. This instrument is suitable for type testing, factory acceptance testing, and acceptance testing of high-voltage products. It can perform quantitative partial discharge testing on motors, instrument transformers, cables, bushings, capacitors, transformers, surge arresters, switches, and other high-voltage electrical equipment. The AC/DC Partial Discharge Analyzer complies with IEC 60270 and GB/T 7354-2018 standards, enabling measurement and recording of partial discharge (PD) and AC test voltage.

Product Parameter (specification)

(1) Partial Discharge Measurement System
(1) Number of measurement channels	Single channel
(2) Input impedance	50Ω
(3) Analog filter	(-6dB) Complies with IEC 60270 and GB/T 7354-2018 standards
	①Lower Limit Frequency fL;Selectable from 10kHz, 20kHz, 40kHz, 60kHz, 80kHz
	②Upper Limit Frequency fU;Selectable from 100kHz, 200kHz, 300kHz, 400kHz, 500kHz, 1MHz
(4) Detection sensitivity	<1 pC (CA=10 nF/CK=1 nF)
(4) Detection sensitivity	①<0.1 pC (CA=1 nF/CK=1 nF)
(5) Measurement range	0.05 pC–10,000 nC
(6) Sampling accuracy	14 bits
(7) Sampling Rate	100MHz
(8) Gain Adjustment Range	60dB, 40dB, 20dB, 0dB, -20dB, -40dB (automatically or manually adjustable)
(9) Testable Capacitance Range	6pF~250μF
(10) Linearity Error	<±3%
(II) Voltage Measurement System
(1) Voltage Input Range	5~230VAC (RMS)
(2) Linearity Error	<±3%
(3) Frequency Range	10~450Hz
(4) Synchronization Mode	Power supply synchronization or voltage input synchronization with automatic switching
(5) Synchronization Accuracy	<1°
(III) Interfaces
(1) Partial Discharge Input	1×BNC
(2) Voltage Input	1× Aviation Connector
(3) Communication Interface	1× RS232
(IV) Host Parameters
(1) Operating System	Linux OS
(2) Storage	8GB or higher
(3) Power Supply	176~264 VAC, 50/60Hz
(4) Power Fuse	250V T 5A
(5) Operating Temperature	-10°C to 50°C
(6) Storage Temperature	-40°C to 60°C
(7) Relative Humidity	5% to 95%, non-condensing
(8) Dimensions	355mm × 282mm × 200mm (W × D × H)
(9) Net Weight	11kg

Product feature and application

1. Dual-Mode Compatibility: Supports AC/DC testing, suitable for various scenarios including type testing, factory acceptance testing, and commissioning of high-voltage equipment.

2. Precision Measurement: Detection sensitivity <0.1 pC, 14-bit sampling accuracy + 100 MHz sampling rate, linearity error <±3%.

3. Flexible Adaptability: Multi-stage filtering (10 kHz–1 MHz), adjustable gain (-40 dB to 60 dB), supports test specimen capacitance from 6 pF to 250 μF.

4. User-Friendly Operation: Integrated unit design (11kg), Linux OS + LCD interface, supports PRPD/PRPS spectrum visualization.

5. Strong Anti-Interference: Features phase window masking, pulse smoothing, and balanced method for suppressing field interference.

6. Safe and Reliable: Comprehensive grounding requirements + multiple high-voltage warnings, operates in -10°C to 50°C temperature range.

7. Efficient Data Management: 8GB+ storage supports creating, saving, and exporting test data, compatible with multiple formats for archiving.

Prodection details

Suitable for type, factory, and acceptance testing of high-voltage electrical equipment such as motors, instrument transformers, cables, and transformers. Capable of precise laboratory measurements and on-site partial discharge quantitative testing.

Company Qualifications

FAQ

1)What operating modes does the MOEORW-WPD-S1AD Digital AC/DC Partial Discharge Analyzer support?

Answer: It supports both AC mode and DC mode, which can be switched according to testing requirements. AC mode displays PRPD and PRPS spectra, suitable for power frequency-related partial discharge testing. DC mode supports discharge threshold, segment threshold, and interval threshold settings, enabling pulse data statistics across different thresholds.

2)What precautions should be taken when cleaning the MOEORW-WPD-S1AD Digital AC/DC Partial Discharge Analyzer?

Answer: Before cleaning, power must be disconnected by removing the power cord, signal cables, and grounding wire. Only dampen a soft cloth to wipe the exterior casing; solvents or abrasives are prohibited. Avoid water or cleaning agents entering interfaces, fans, or air inlets during wiping.

3)How should the measurement impedance be selected for the MOEORW-WPD-S1AD Digital AC/DC Partial Discharge Analyzer?

Answer: Estimate the tuning capacitance based on the test specimen's capacitance and coupling capacitance. Then select the corresponding measurement impedance model (12 types available) based on the midpoint value of the tuning capacitance. For example: - Test oil-immersed current transformers or voltage transformers: Select Model 2 - Test epoxy-encapsulated transformers: Select Model 3 - Test small transformers: Select Model 4

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