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Complete solutions for commissioning, preventive & acceptance testing

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Category 01

Series Resonant Test Systems

Variable-frequency resonant systems for AC withstand testing of cables, GIS, transformers and generators.

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DFXZ Substation AC withstand resonant systemDFXZSubstation AC withstand resonant systemView details → DFXZ-2000kVA/400kV Variable frequency series resonant test systemDFXZ-2000kVA/400kVVariable frequency series resonant test systemView details → DFXZ-675kVA/270kV/27kV Variable frequency series resonant withstand test systemDFXZ-675kVA/270kV/27kVVariable frequency series resonant withstand test systemView details → DFXZ-270kVA/270kV Variable frequency series resonant withstand test systemDFXZ-270kVA/270kVVariable frequency series resonant withstand test systemView details → DFXZ-264kVA/44kV Variable frequency series resonant withstand test systemDFXZ-264kVA/44kVVariable frequency series resonant withstand test systemView details → DFXZ-405kVA/108kV Variable frequency series resonant withstand test systemDFXZ-405kVA/108kVVariable frequency series resonant withstand test systemView details →
Category 02

High Voltage Test Equipment

Test transformers, operating consoles, high current generators and voltage dividers for power-frequency and DC withstand tests.

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YDJ Oil-immersed test transformerYDJOil-immersed test transformerView details → YD Ultra-light test transformerYDUltra-light test transformerView details → YDQ Gas-filled (SF6) test transformerYDQGas-filled (SF6) test transformerView details → YDQ-30kVA/150kV Gas-filled (SF6) test transformerYDQ-30kVA/150kVGas-filled (SF6) test transformerView details → GYD Dry-type test transformerGYDDry-type test transformerView details → GYD-5kVA/50kV Dry-type test transformerGYD-5kVA/50kVDry-type test transformerView details →
Category 03

Transformer Test Equipment

Turns ratio, winding resistance, capacity, tap-changer and winding deformation testers for power and distribution transformers.

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DF2020 Transformer turns ratio testerDF2020Transformer turns ratio testerView details → DF2010L Transformer turns ratio testerDF2010LTransformer turns ratio testerView details → DFYZ-IV On-load tap-changer testerDFYZ-IVOn-load tap-changer testerView details → DFYZ-2008 On-load tap-changer testerDFYZ-2008On-load tap-changer testerView details → DF-8002Y Transformer winding deformation testerDF-8002YTransformer winding deformation testerView details → DF-9002 Transformer winding deformation analyserDF-9002Transformer winding deformation analyserView details →
Category 04

Relay Protection & Switch Test Equipment

Secondary injection relay testers, circuit breaker analysers, loop resistance meters and switchgear test benches.

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DF1200C Six-phase relay protection testerDF1200CSix-phase relay protection testerView details → DF1200 Six-phase relay protection testerDF1200Six-phase relay protection testerView details → DF702C Three-phase relay protection testerDF702CThree-phase relay protection testerView details → DF802C Three-phase relay protection testerDF802CThree-phase relay protection testerView details → WKJBC-II Single-phase relay protection testerWKJBC-IISingle-phase relay protection testerView details → GKC-B5 HV circuit breaker analyserGKC-B5HV circuit breaker analyserView details →
Category 05

CT / PT Test Equipment

Excitation and burden characteristics, ratio and polarity verification for instrument transformers and energy meters.

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DFVA Variable frequency CT/PT V-A characteristic testerDFVAVariable frequency CT/PT V-A characteristic testerView details → DF-208T CT/PT comprehensive testerDF-208TCT/PT comprehensive testerView details → DFVA-G CT/PT comprehensive testerDFVA-GCT/PT comprehensive testerView details → DFJYM-3 Multi-function energy meter field calibratorDFJYM-3Multi-function energy meter field calibratorView details → DFSJX-S Handheld energy meter calibratorDFSJX-SHandheld energy meter calibratorView details →
Category 06

Cable & Arrester Test Equipment

Cable fault locators, DC high voltage generators, ZnO arrester testers and cable identification tools.

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DF Series Cable fault locatorDF SeriesCable fault locatorView details → DF-A10 / A20 Cable fault locatorDF-A10 / A20Cable fault locatorView details → DF-S10 Cable identifierDF-S10Cable identifierView details → DF506YS Cable piercing deviceDF506YSCable piercing deviceView details → ZGF DC high voltage generatorZGFDC high voltage generatorView details → ZGFQ-60kV Intelligent DC high voltage generatorZGFQ-60kVIntelligent DC high voltage generatorView details →
Category 07

Grounding & Insulation Resistance Testers

Ground grid and clamp-on earth resistance testers, megohmmeters and continuity testers.

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BC Insulation resistance testerBCInsulation resistance testerView details → BY26 Digital megohmmeterBY26Digital megohmmeterView details → DFDWR-II Large grounding grid resistance testerDFDWR-IILarge grounding grid resistance testerView details → DF5600 Dual-clamp multi-function ground resistance testerDF5600Dual-clamp multi-function ground resistance testerView details → DF2000+ Clamp-on ground resistance testerDF2000+Clamp-on ground resistance testerView details →
Category 08

Oil, SF6 & Other Test Equipment

Insulating oil BDV and tan-delta testers, partial discharge detectors, SF6 analysers and safety equipment test sets.

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IIJ Automatic insulating oil BDV testerIIJAutomatic insulating oil BDV testerView details → IIJ-80kV Insulating oil BDV testerIIJ-80kVInsulating oil BDV testerView details → DF6100 Insulating oil tan-delta & resistivity testerDF6100Insulating oil tan-delta & resistivity testerView details → DFDL-Z Insulating oil tan-delta & resistivity testerDFDL-ZInsulating oil tan-delta & resistivity testerView details → DFJFS-I Handheld partial discharge detectorDFJFS-IHandheld partial discharge detectorView details → DFPD-930S Handheld partial discharge analyserDFPD-930SHandheld partial discharge analyserView details →