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.

The standard 4-phase voltage and 3-phase current output has a 4-phase voltage and 3-phase current output, which can be easily combined for protection testing. Each phase voltage can output 120V, and the current can output 120A in three parallel. The fourth phase voltage Ux is a multifunctional voltage item, which can be set as four types of 3U0 or detected for synchronous voltage, or output for a certain voltage value.
 
Single machine operation is convenient. The single machine is operated through a large LCD screen with a convenient and flexible rotating mouse, and displayed in Chinese. It can complete most of the on-site testing and verification work, verify relays and microcomputer protection, and simulate complex instantaneous, permanent, and conversion faults for whole group testing. Ready to use upon startup, easy and fast to operate.
 
Dual operation mode, connected to a computer and running through Chinese operating software on the Windows platform, can perform various large-scale, complex, and highly automated verification tasks. It can easily test and scan various protection settings, store test data in real time, display vector graphics, draw fault waveforms, and print reports online.
 
The software has powerful functions and can complete large-scale complex verification tasks with high automation, such as three-phase differential testing, plant power fast switching, backup automatic switching testing, line protection check synchronous reclosing, etc. It can easily test and scan various protection settings, perform fault playback, store test data in real time, display vector graphics, and print reports online.

AC current output
Output accuracy: 0.2 level
Phase current output (effective value): 0-40A
Triple current output (effective value): 0-120A
Long term allowable operating value (effective value) of phase current: 10A
Maximum output power of phase current: 450VA
Maximum output power at maximum output of triple current: 900VA
Allowable working time for maximum output of triple current: 10s
Frequency range (fundamental): 0-1000Hz (online) 0-300Hz (standalone)
Harmonic frequency: 0-20 times (online) 0-6 times (single machine)