1. Using a high-speed and high-performance digital control processor as the control microcomputer, the software applies a dual precision algorithm to generate high-precision waveforms for each phase.

2. By using a high-speed high-level D/A converter, the accuracy and linearity of current and voltage across the entire range are ensured.

3. The power amplifier circuit adopts imported high-power high fidelity modular power devices as the power output stage, combined with carefully and reasonably designed heat dissipation structure, with sufficient power redundancy and thermal capacity.

4. The switch input circuit is compatible with idle contacts and 0-250V potential contacts.

5. The instrument uses a 320 × 240 dot matrix high-resolution blue backlit LCD display as the monitor.

6. The device is equipped with an adjustable DC power output on the chassis bottom plate, divided into two levels of 110V and 220V, which can be used as an auxiliary power supply for on-site testing.

Instrument usage:

The entire transmission system can simulate various simple or complex transient and conversion faults, and can superimpose transient DC components on the fundamental wave.

Automatic testing of distance, zero sequence, and overcurrent protection for the entire group.

Testing of various protections such as motor demagnetization, demagnetization, reverse power, and synchronization.

Testing of all individual components in secondary scheduling, including current, voltage, time, differential, balance, negative sequence, distance, power direction, inverse time limit, frequency, synchronization, reclosing, and other relays.

Automatic scanning of various protection time characteristics. Scanning of power and impedance protection characteristic curves.

A dedicated low cycle unit that facilitates testing of microcomputer low cycle and low voltage load shedding protection.