Adopting dual 12-bit DAC, high-fidelity high-performance linear amplifier, high output accuracy and good waveform, stable performance. It can conveniently test standby power supply automatic switching devices and microcomputer differential protection devices, and provide targeted calibration procedures for various types of relays. The powerful function test software can also provide a complete set of automatic test procedures for microcomputer protection and automatic devices in various calibration and search modes: line protection, differential protection, impedance protection, low frequency, synchronization, standby power supply automatic switching, etc. Various fault simulation programs can truly simulate and replay various actual faults, transient processes, system oscillations, and reclosing action behaviors on site.
1. All technical indicators fully meet the standard of DL/T624-1997 "Technical Conditions for Microcomputer-Based Test Devices for Relay Protection" issued by the Ministry of Electric Power.
2. Stand-alone operation, built-in high-performance industrial computer, main frequency 300--600MHz, memory 512M, hard disk 4--12G, running Windows XP operating system.
3. The first in the domestic industry to adopt imported brushed stainless steel panel and stainless steel keyboard, and also uses touch mouse, overcoming the shortcomings of trackball mouse which is inflexible and easily damaged. It selects an 8.4-inch TFT true color display with a resolution of 800×600, making the overall operation of the stand-alone device convenient and durable.
4. The main control board adopts DSP+FPGA structure, 16-bit DAC output, which can generate a high-density sine wave with 2000 points per cycle for the fundamental wave, greatly improving the waveform quality and the accuracy of the tester.
5. The power amplifier adopts high-fidelity linear power amplifier, which ensures both the accuracy of small current and the stability of large current.
6. USB interface is used to communicate directly with PC, no need for any conversion cable, convenient to use.
7. Can be connected to a laptop for operation. The laptop and the industrial computer use the same software, no need to relearn the operation method.
8. Equipped with GPS synchronization test function. The device can be built-in GPS synchronization card (optional) connected to PC via RS232 port to realize synchronous adjustment test between two testers at different locations.
9. Equipped with independent dedicated DC auxiliary voltage source output, output voltages are 110V (1A) and 220V (0.6A) respectively, to provide DC working power for relays or protection devices that need it.
10. Has software self-calibration function, avoiding the need to open the chassis to adjust potentiometers for calibration, thus greatly improving the stability of accuracy.
1. AC Current Source:
Amplitude range: 6×(0-30A) Accuracy: 0.2%
Maximum output of six-phase current in parallel: 180A
Long-term allowable working current: 10A
Power: 300VA/phase
Maximum power of six-phase parallel: 900VA
Maximum output time of six-phase parallel: 10s
Frequency range: 0--1000Hz Accuracy: 0.001Hz
Harmonic order: 2--20 times Phase: 0--360° Accuracy: 0.1°