| Relay Protection Tester |
Technical Parameters
1. AC Current Source:
Phase current output (RMS): 0--40A/phase Accuracy: 0.2%
Three-phase parallel output (RMS): 0--120A/three-phase parallel output
Long-term allowable working value of phase current (RMS): 10A
Maximum output power per phase: 420VA
Maximum output power of three-phase parallel current: 900VA
Maximum allowable working time for three-phase parallel current output: 10s
Frequency range: 0--1000Hz Accuracy: 0.001Hz
Harmonic order: 2--20 times Phase: 0--360° Accuracy: 0.1°
2. DC Current Source:
Current output: 0--±20A/phase Accuracy: 0.2%
3. AC Voltage Source:
Phase voltage output (RMS): 0--125V/phase Accuracy: 0.2%
Line voltage output (RMS): 0--250V
Phase voltage/line voltage output power: 75VA/100VA
Frequency range: 0--1000Hz Accuracy: 0.001Hz
Harmonic order: 2--20 times Phase: 0--360° Accuracy: 0.1°
4. DC Voltage Source:
Phase voltage output amplitude: 0--±150V Accuracy: 0.2%
Line voltage output amplitude: 0--±300V
Phase voltage/line voltage output power: 90VA/180VA
5. Switching Quantity Terminals:
Switching quantity input terminals: 8 pairs
Empty contacts: 1--20mA, 110V device internal active output
Potential flip: 0--6VDC is low level
15--250VDC is high level
Switching quantity output terminals: 4 pairs, empty contacts Breaking capacity: 110V/2A, 220V/1A.
6. Time measurement range:
Range: 1ms--9999s Measurement accuracy: 1ms
7. Dimensions and weight:
Dimensions: 365(mm)×400(mm)×195(mm) Approx. 18Kg
8. Power supply:
AC220V±10% 50Hz 10A
Product Features
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 use touch mouse, overcoming the disadvantages of trackball mouse that is not flexible and easy to damage, and selecting 8.4-inch TFT true color display with resolution of 800×600, making the overall operation of the single unit convenient and durable.
4. The main control board adopts DSP+FPGA structure, 16-bit DAC output, which can generate 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 test between two testers in different places.
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 the potentiometer to calibrate accuracy, thus greatly improving the stability of accuracy.
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