● | With the function of test MU accuracy,time characteristics,state mark,packet loss rate,harmonic analysis,signal analysis, voltage and current phase detection, transient characteristic verification. Can test all aspects of MU functions and performance. |
● | Except MU test and traditional protection relay by analog input, KF920 also can test IED in intelligent substation which comply with IEC61850 standard. |
● | 7 phase voltage and 6 phase current output, Maximum voltage is 130V/phase. Maximum current is 32A/phase(Max 192A in parallel six phase), 13 channel low-level signal output. |
● | Analog signal sampling use industrial-grade high-precision ADC, output accuracy can reach 0.05%. Absolute delay, time jitters test accuracy is better than 1μS. |
● | Perfect self-test and prompt. The system is stable ,device performance will not be changed by long time running; The system can detect abnormal situation and give warning. |
● | 12.1 inch touch screen, Built-in windows operating system. Compact structure, safe and easy to portable |
● | Can be used as a record and waveform analyzer. |
Current Channels | |
Range | 6×32A/phase |
Accuracy | ≤±0.05%(0.2A ~ 32A); ≤±0.1mA(0.05A ~ 0.2A) |
Resolution | 1mA |
Power | ≥450VA/phase |
Rise And Fall Time | <100uS |
Frequency range | 1 ~ 1000Hz |
Amp-frequency characteristics | ≤±0.2% (10Hz ~ 45Hz), (65Hz ~ 450Hz); ≤±0.05% (45Hz ~ 65Hz); ≤±0.5% (450Hz ~ 1000Hz) |
Current output time | <5A/phase, continuous output; 5 ~ 32A/phase, >180s |
Voltage Channels | |
Output Range | 7×130V/phase |
Accuracy | ≤±0.05%(2V ~ 130V); ≤±0.2mV(0.5V ~ 2V) |
Resolution | 1 mV(0.2V ~ 10V), 10 mV(10V ~ 310V) |
Power | ≥60VA/phase |
Rise and fall time | <100uS |
Frequency | 1 ~ 1000Hz |
Amp-frequency characteristics | ≤±0.2% (10Hz ~ 45Hz)、(65Hz ~ 450Hz); ≤±0.05% (45Hz ~ 65Hz); ≤±0.5% (450Hz ~ 1000Hz) |
Voltage amplifier output time | Nominal voltage condition, output continuous |
Synchronization | |
Synchronization time of Current and voltage output | ≤10µs |
Frequency and Phase angle | |
Frequency range | 1 ~ 1000Hz |
Frequency accuracy | <0.5mHz (1Hz ~ 65Hz) <5mHz(65Hz ~ 450Hz) <10mHz(450 Hz ~ 1000Hz) |
Frequency resolution | 0.001Hz |
Harmonic | Harmonic and DC can be superimposed 2 to 25 times amplitude (less than the rated value) |
Phase range | 0 ~ 359. 9° |
Phase accuracy | ±0.05° |
Phase resolution | 0.01° |
Low level Outputs | |
Output channels | 13 channels |
Output range | AC:0 ~ 8Vrms(Effective value) |
Maximum current | ≥1mA |
Output accuracy | <0.1mV(0.1 ~ 0.2Vrms) <0.05%(0.2 ~ 8 Vrms) |
Amp-frequency characteristics | ≤±0.1% ~ 0.5% (1Hz ~ 1kHz) |
Resolution | ≤250µV |
IEC61850 | |
SV output voltage | IEC61850-9-1, IEC60044; Rated voltage parameter 11585(0X2D41); IEC61850-9-2: Digital 1 is 10mV |
SV output current | IEC61850-9-1, IEC 60044: Rated protection current463(0X 1CF), Rated measurement current 11585(0X2D41); IEC61850-9-2: Digital 1 is 1mA |
Synchronization signal | IRIG-B sending ports ≥ 2pcs; IRIG-B receiving ports ≥ 1pc; PPS receiving ports ≥ 1pc; GPS Port : 1pc; Synchronization accuracy>0.5us |
Test system accuracy | 0.03%;resolution:0.0001%, 0.01´ |
Test verification Class | 0.2S |
Electronic transformer and MU delay test | <2us |
MU delay jitters test | <2us |
MU transient delay accuracy | <10us |
GOOSE receiving time | <0.1ms |
Binary I/O receiving time | <0.1ms |
Others | |
Power supply | 100V ~ 260V (AC), DC 125-350V Frequency Range:43 ~ 57Hz |
Operating temperature | -10 ~ +50℃ |
Humidity | 5 ~ 95%, non-condensing |
Storage and transport temperature | -20 ~ +70℃ |
Altitude | ≤4000m |
Dimension | 358mm×149mm×297mm |
Weight | <21kg |
● | Built-in high-precision analog amplifier, Which can provide 6 × 32A AC current source and 7 × 130V AC voltage source. |
● | Built-in 100M fiber Ethernet port(2 Pairs,LC Type) and IRIG-B Port(In/Out). |
● | Provide merger unit accuracy test function (Amplitude error, Phase error, etc.). |
● | Simulate Binary I/O signal (Haact or GOOSE), Which comply with merger unit voltage switching, voltage parallel logic function test. |
● | Can test Merger Unit time characteristics ,such as time sending accuracy,time receiving accuracy. |
● | Have Message analysis and statistics function which can real-time analyze merger unit output SMV, GOOSE message. Have Protocol consistence test and abnormal message check and statistics function. |
● | Can test Merger Unit self-check and error handling mechanism through sampling quality,signal mark in GOOSE , warning information define in Goose signal. |
● | Real-time display waveform、binary state and previous switch trip time in message electrical parameter. Mark time scale in SV message through hardware to count and evaluate time dispersion of merger unit SV message. |
● | Record message data in 1 minute, analyze/compare time scale and amplitude data of each sampling point, display amplitude and time scale statistical results of error distribution curve and Max error. |