- Test equipment
- Current generator with constant current
- Full automatic temperature rising and large curren
- Small current generator
- Large current generator
- AC / DC current generator
- Intelligent high current
- Three-phase current generator
- Intelligent three-phase current
- The three-phase voltage and current source
- Three frequency generator
- Fault indicator tester
- Fuse tester
- Transformer integrative tester
- Thermal relay tester
- Tester for motor protector
- Relay protection tester
- High voltage switchgear
- Low voltage switchgear
- AC and DC voltage tester
- DC high voltage generator
- DC breaker ampere second characteristic test instr
- Power inspection class
Product Display
- DDYM-6-Online meter calibrator
- DD100/5-DC high voltage generator
- DDGY-AC and DC test transformer
- DDTD-II-High and low voltage switch power on test bench
- DDHL-100-Circuit resistance tester (contact resistance tester)
- DDHL-100RM-Circuit resistance tester (contact resistance tester)
- DDGK-06-High voltage switch mechanical characteristic testing instrument
- DDHL-200-Circuit resistance tester (contact resistance tester)
- DDHL-300-Circuit resistance tester (contact resistance tester)
- DDHL-500-Circuit resistance tester (contact resistance tester)
- DDHL-200RM-Circuit resistance tester (contact resistance tester)
- DDHL-300RM-Circuit resistance tester (contact resistance tester)
- DDHL-500RM-Circuit resistance tester (contact resistance tester)
- DDST-6610-High and low voltage switch power on test bench
- DDJB-I-Portable relay protection tester
- DDJB-II-Single phase relay protection check instrument
- DDJB-III-Relay protection tester
- DDJB-IV-Double circuit relay protection tester
- DDJB-V-Relay protection check instrument capable of measuring small mutual inductor
- DDJB-VII-Relay protection testing instrument
- DDJB-A8-Time limit relay protection tester
- DD430-Industrial control type microcomputer relay protection testing instrument
- DD6630-Microcomputer based relay protection testing instrument
- DDRJ-500SH-Tester for motor protector