The direct sales six phase relay protection tester adopts an advanced structure that operates independently as a single machine or can also be connected to a laptop for operation. 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.
Direct sales six phase relay protection testerThe functional testing software can be used to test and verify various relay calibration programs for backup automatic switching devices and microcomputer differential protection devices. It can also provide a complete set of automatic testing programs for microcomputer protection and automatic devices, including line protection, differential protection, impedance protection, low cycle, synchronization, backup automatic switching, etc. Various fault simulation programs can simulate and replay actual faults, transient processes, system oscillations, and reclosing actions on site.
1. All projects can be tested without the need for external devices, automatically displaying and recording test data, and completing the depiction of vector diagrams and characteristic curves.
2. The amplification part adopts a new high-power high fidelity linear power amplifier circuit, which has high output power and low ripple interference. When the output current reaches a high level, the waveform can still ensure no distortion or peak shaving.
3. By using a high-performance D/A converter, the waveform generated has high accuracy, good linearity, and excellent transient response and amplitude frequency characteristics. The waveform accuracy and other indicators can be guaranteed throughout the entire measurement range.
4. It can directly output AC voltage, AC current, DC voltage, DC current, with variable amplitude, phase angle, and frequency.
5. Adopting a carefully designed chassis structure, it has a small volume, good heat dissipation, light weight, easy portability, and convenient flow testing.
6. The input interface can automatically adapt to passive and active inputs, and can automatically adapt to the polarity of active inputs. It can work normally within the input voltage range of ± 250V.
7. The instrument has self-protection function, adopts a reasonably designed heat dissipation structure, has reliable multiple protection measures and power soft start, and has certain fault self diagnosis and locking functions.
8. It can complete various complex verification tasks, conveniently test and scan various protection settings, store test data in real time, display vector graphics, print reports, etc.
9. It can simultaneously output six phase current and six phase voltage, with a current of 6 × 30A/phase and a voltage of 6 × 120V/phase. It is equipped with an industrial computer Windows XP operating system, an 8.4-inch high-resolution color TFT LCD display screen, a USB interface, and a 220th harmonic. It automatically generates WORD test reports and has 8 inputs and 4 outputs. In addition to the complete set of microcomputer relay protection device tests, it is more convenient for testing microcomputer differential protection devices
Direct sales six phase relay protection testerThe following points should be noted during use:
1. Inspection or preparation before use: Before using the instrument, a visual inspection should be carried out, and the grounding terminal of the three core power cord should be reliably grounded. Then, the instrument should be powered on, and the two meter heads should be on. The stopwatch power switch should be turned on, and the stopwatch switch should be normal. Touch the 'Output Selection' button switch with your hand, and the output status indicator light should select 'Normal' from left to right.
2. Main circuit voltage output operation: Select the output state in the "AC0-250V" range, press the "output control switch" in the lower right corner of the test box, slowly adjust the large knob of the voltage regulator, and the voltage/current meter should display the "0-250V" AC voltage. To output "DC0~350V", select the output state in the "DC0~350V" range, and adjust it as above.
3. Main circuit current output operation: Select the output state in the "AC0-10A" range, press the "output control switch" of the main circuit to slowly adjust the large knob of the voltage regulator. At this time, the voltage/current meter should display the "0-10A" current, and other current adjustment methods are the same.
4. Auxiliary circuit output operation: Press the "output control" switch of the auxiliary circuit, slowly adjust the small knob, and there will be AC "0-20V", "0-250V", and DC "0-350V" outputs on the auxiliary circuit output terminal, which are not monitored on the voltage/current meter.
Six phase relay protection testerProduct image:
