HZJB—II type relay protection tester manual introduces the introduction, technical parameters, panel layout and function description, output power operation, use instructions, use precautions, packing list and other contents of the relay protection tester.
The HZJB‑II relay calibrator is a protection relay testing instrument developed by Hezhong Electric. It provides adjustable AC/DC voltage and current sources, fixed DC voltage outputs, and timing functions for verifying various relay types.
The manual includes safety guidelines, technical parameters, detailed panel description, step‑by‑step operating procedures, and a packing list. It also outlines how to measure relay characteristics such as activation values, return values, timing, and coefficient calculations. This manual is written in Chinese.
| AC Current Output Range | 0‑100 A / 10 V adjustable |
|---|---|
| AC Current Output Range (low) | 0‑20 A / 35 V adjustable |
| AC Current Output Range (very low) | 0‑5 A / 8 V adjustable |
| AC Voltage Output Range | 0‑250 V / 4 A adjustable |
| DC Current Output Range | 0‑20 A / 25 V adjustable |
| DC Voltage Output Range | 0‑250 V / 4 A adjustable |
| Fixed DC Voltage Outputs | 24 V, 48 V, 110 V, 220 V |
| Instrument Power Supply | AC 220 V ±5 %, 50 Hz ±5 % |
| Timing Resolution | 0.1 ms |
| Timing Measurement Error | ≤ 0.2 ms |
Select the T1 switch to the AC voltage position, turn the T4 knob to adjust the output, and read the current voltage value on the X1 display.