User manual for the KJTC-III high‑voltage switch mechanical characteristics tester made by Wuhan Hezhong.
The KJTC-III tester is a portable instrument that measures mechanical characteristics of high‑voltage circuit breakers, such as make‑break order, timing, speed, travel and over‑travel. It integrates a computer, printer, measurement interface and power supply, and automatically recognizes two types of displacement sensors for oil‑filled, SF6 or vacuum breakers.
The manual describes the instrument’s functions, technical specifications, panel layout, wiring connections, measurement procedures, result display, printing format, fault analysis, printer maintenance and accessories list. This manual is written in Chinese.
| Weight | 5 kg |
|---|---|
| Input voltage range | 48 V – 280 V AC/DC |
| Output voltage range | 48 V – 280 V AC/DC |
| Number of measurable contacts | 1 – 6 |
| Maximum sensor distance (mechanical) | 10 m |
| Maximum sensor distance (vacuum) | 5 m |
| Operating temperature range | -0 °C – +40 °C |
| Main power supply | 220 V 50 Hz ±10 % |
The instrument can measure between one and six contacts simultaneously.
Press the clear key on the panel to erase the recorded data.
It operates from an external AC/DC source of 48 V to 280 V.