The KDHG-B transformer ratio tester is designed specifically for testing the ratio and polarity of current transformers and voltage transformers. The instrument adopts a large color screen touch design, which greatly facilitates customer operation. The internal design principle adopts precision and high anti-interference circuit, greatly improving measurement accuracy. Internally powered by large capacity lithium batteries, it is convenient for customers to conduct on-site tests. After the battery is fully charged, it can work for 12 hours. The product design is reasonable and the operation is easy.
The variable ratio polarity tester was improved based on a large number of user feedback, including merging the 8 terminals on the panel into 4 terminals, removing buttons, adopting pure touch settings, increasing battery capacity, etc. The internal circuit board was also redesigned and optimized.

1. 8.6-inch true color screen touch design solves the problem of traditional button failure.
 
2. Internally, precision DSP operation is used to greatly improve measurement accuracy and speed, saving comprehensive costs for customer testing.
 
3. Using high-capacity rechargeable lithium batteries to solve the problem of no AC power on site.
 
4. Adopting integrated circuit design principles, reducing instrument weight and making it easy to carry.
5. The design interface is beautiful and elegant, and the wiring method is clear at a glance.

1. Primary current range: 1-50000A
 
2. Secondary current range: 5A, 1A
 
3. Primary voltage range: 100-1000KV
 
4. Secondary voltage range: 100V, 100/√ 3V, 100/3V, 150V, 220V, 380V, 400V.
 
5. Working environment: Temperature range of 0 to+40 ° C
Humidity less than 85% without condensation
 
6. Dimensions: 300 × 240 × 140mm3
 
7. Weight: 5kg