The use of "conversion" key: adjust the DC current value first, and then press the "conversion" key, the DC current is normally output, and the display value is displayed in the second line of the screen.
“转换”键的使用：先调节好直流电流值，再按“转换”键，则直流电流正常输出，且显示值在屏幕第二行显示出来。
At this time, it can be output with other power supplies at the same time, supply and demand a variety of power supplies for relay verification, such as reclosing relays.
此时它可和其它电源同时输出，供需多种电源的继电器校验用，如重合闸继电器等。
4, time setting: the user can correct the internal clock of the instrument.
4、时间设置：用户可修正仪器的内部时钟。
5, instrument calibration: After the instrument is used for a period of time, if there is a deviation in the test, the user can use the high-level table to calibrate it, and adjust the internal coefficient with the "up" and "down" keys, without opening the chassis or adjusting any knob.
5、仪器标定：仪器使用一段时间后，如果测试有偏差，用户可用高等级表对其进行标定，用“上翻”、“下翻”键调整内部系数即可，不用打开机箱或调节任何旋钮。
The relay protection test box uses a full-fidelity high-performance linear amplifier with high output accuracy and good waveform, and has stable performance.
继电保护试验箱应用全保真高性能线性放大器、输出精度高和波形好，性能稳定。
It is convenient to test the standby self-propelled device and the microcomputer differential protection device and target various relay calibration programs. The powerful functional test software can provide automatic test programs for complete sets of microcomputer protection and automatic devices with various calibration and search methods: line protection, differential protection, impedance protection, low cycle, synchronous, standby self-propelled device, etc.
可方便对备自投装置和微机差动保护装置进行试验、针对性各类继电器校验程序，强大的功能测试软件更能提供多种校验和搜索方式的成套微机保护和自动装置的自动试验程序：线路保护、差动保护、阻抗保护、低周、同期、备自投等。
All kinds of fault simulation programs can truly simulate and replay all kinds of actual faults, transient processes, system oscillations, and re-closing actions.
各类故障模拟程序，能真实模拟和回放现场实际的各类故障、暂态过程、系统振荡、重合闸动作行为。
