It can calibrate various relays (such as current, voltage, inverse time limit, power direction, impedance, differential, low cycle, synchronous, frequency, DC, intermediate, time, etc.) and microcomputer protection, and simulate various complex instantaneous and conversion faults for whole group testing.

1. Convenient standalone operation: The device panel is equipped with a trackball mouse, optimized keyboard, and a large screen TFT LCD display, with built-in Chinese Windows platform operating software. Ready to use upon startup, easy and fast to operate.
2. Dual operation mode: In addition to standalone operation, the device can also be connected to an external laptop or desktop computer for operation. The functions of the two modes are the same, providing a truly complete dual operation mode.
3. New high fidelity linear amplifier: The output end has always insisted on using high fidelity and high reliability modular linear amplifiers instead of switch type amplifiers, which have good performance. It will not cause high or medium frequency interference on the test site, and ensures smooth waveform accuracy from high current to low current.
4. High performance host: The output part is controlled by DSP, with fast operation speed, strong real-time digital signal processing capability, wide transmission frequency band, and high-resolution D/A conversion control. The output waveform has high accuracy, low distortion, and good linearity. The device adopts a large amount of precision component materials and has undergone specialized structural design, resulting in small size, light weight, comprehensive functions, easy portability, and can work immediately after startup. Flow testing is very convenient.
Equipped with dedicated DC power output: The device is equipped with one 110V and 220V dedicated adjustable DC power output.

Main technical parameters
AC current output: 3 channels, each 40A/450VA three-phase parallel 120A/1000VA
AC voltage output: 4 channels, each with a 120V/80VA line voltage of 240V/120VA
Output accuracy: 0.2% (within the main range)
DC current output: 3 channels, each with ± 10A/200VA
DC voltage output: 3 channels, each with ± 160V/80VA
Output accuracy: 0.5% (within the main range)
Phase: 0~360 °
Phase accuracy:<0.2 °
Output frequency: 0~1200Hz
Frequency accuracy: ＜ 0.001Hz
Superimposed harmonics: 2nd to 24th order
Input volume: 8 channels
Open quantity: 4 pairs
Independent DC: DC110/220V, rated current 1.5A
Size: 396mm * 354mm * 178mm
Weight: 16kg