Features and Advantages
1.Flexible combination of voltage and current output
Six phase voltage and six phase current can be output, which has made it is possiable to be any combition, such as the output mode of the combination of conventional four phase current and three-phase current, six phase voltage mode, six phase current mode and 12 phase output mode. It not only can be compatible with the traditional way of various tests, but also can conveniently carry out differential test of three-phase transformer.
2.Operation mode
The device is directly connected with a computer or a desktop computer, which is convenient and efficient and stable performance.
3.A new hi-fi linear power amplifier
The output port has always insisted on using the modular linear power amplifier instead of the switching power amplifier, which has the high fidelity and high reliability function and excellent performance. High-mid frequency will not be produced to disturb the test, also ensure the smoothing accuracy of waveform produced by the whole course of the high current to the tiny current is excellent.
4.High performance Mainframe
The output part adopts DSP control, which has fast operation, real-time digital signal processing capability, wide bandwidth and high resolution D/A conversion control. The output waveform has the features of high precision, small distortion and good linearity. With using a large number of advanced technology and precision components and materials and the structure of professional design, the device has the features of small volume, light weight, full function, easy to carry, boot can work, flow test is very convenient.
5.Powerful software function
It can complete all kinds of high automatic validation work which is large and complex. It can also conveniently test and scan protection setting, playback of fault, real-time store test data, display vector, online print report and so on. Besides, six-phase current can facilitate the test of three-phase differential protection.
6.Independent DC power output
An 110V and 220V adjustable DC power is designed to supply output.
7.Complete interface
The device with USB communication port can communicate with the computer and other external devices.
8.Perfect self-protection function
With reasonable design of the heat dissipation structure and the reliable and perfect hardware protection measures, it has the power soft start function and the software of the fault self-diagnosis and the output latch function.
Parameter
- Relay test
- Parameter
- AC current output
- DC current output
- AC voltage output
- DC voltage output
| Relay test | |||
| Relay protection type | Test Item | Proposed test module | Remarks |
| Signal relay | Corresponding test items | DC Test
AC and DC Test | If the intermediate relay is required AC/DC hybrid input, please test in ‘The AC And DC Test ‘module. If Rated current of the signal relay is too small, please use the voltage loop output of tester to do experiments. |
| Time rela | |||
| Intermediate relay | |||
| Coincidence rela | |||
| Other DC voltage and current relay | |||
| Current relay | Corresponding test items | AC Test | The sequence component relay can be tested in the special sequence module of ‘AC Test’. The inverse time relay can be tested in the “It characteristics” module. |
| Over (under) voltage relay | |||
| Sequence component relay | |||
| Synchronous check (or phase comparison) relay | |||
| Inverse time current relay | |||
| Differential relay | DC magnetic feature | Differential Relay, Differential Harmonic, AC/DC Test, Harmonic Test | Please refer to ‘Appendix 5’ for correct wiring in the test |
| Harmonic braking feature | |||
| Proportional braking feature | Differential Relay, AC Test | ||
| Power (directional) relay | Corresponding test items | Power Direction &Impedance, AC Test | Before testing the power (direction) relay, the type of connection and the action boundary of the protection should be determined in advance. |
| Impedance relal | |||
| Synchronous relay | Corresponding test items | Synchronization Test, AC Test | UA, UC of tester is fixed as the system side and the side to side voltage output for ‘Synchronization Test’ module. |
| Frequency relay | Corresponding test items | High-Low Frequency Test | When the ‘automatic frequency conversion’ method is chosen in the single machine, the frequency slip value can be measured. |
| Parameter | |
| Current channel number | Standard six phase |
| Voltage channel number | Standard six phase |
| AC current output range | 30A / phase or 180A (six phase parallel) |
| DC current output range | 10A DC /phase |
| AC voltage output range | 120V AC /phase |
| DC voltage output range | 160V DC / phase |
| AC current output | |
| The virtual value of each phase output when six phase current output | 0～30A output precision 0.1 grade |
| The virtual value of each phase output when three phase current output | 0～60A |
| The virtual value of six phase parallel current output | 0～180A |
| The allowed virtual value when the phase current work long time | 10A |
| The maximum output power of phase current | 450VA |
| The maximum output power when six phase parallel current output | 1000VA |
| The allowed working time when six phase parallel current maximum output | 10s |
| Frequency range（fundamental wave） | 0～1000Hz |
| Harmonic order | 0～20 |
| DC current output | |
| Current output | 0～±10A / phase output precision 0.2 grade |
| The maximum load volatage output | 20V |
| AC voltage output | |
| The virtual value of phase voltage output | 0～120V output precision 0.1 grade |
| The virtual value of line voltage output | 0～240V |
| The output power of phase voltage/ line voltage | 80VA / 100VA |
| Frequency range（fundamental wave） | 0～1000Hz |
| Harmonic order | 0～20 |
| DC voltage output | |
| The output amplitude of phase voltage | 0～±160V output precision 0.2 grade |
| The output amplitude of line voltage | 0～±320V |
| The output power of phase voltage/ line voltage | 70VA / 140VA |
| Input and output | 8 channels input |
| Free contact | 1～20mA，24V |
| Electric potential contacts | “0”：0 ～ +6V； “1”：+11 V ～ +250 V |
| 4 channels output | DC：220 V／0.2 A；AC：220 V／0.5 A |
| Time measurment range | 0.1ms ～ 9999s |
| measurement accuracy | ＜0.1ms |
