Transformer Comprehensive Test SystemZC-200-5000kVA-33kV
System Introduction
System Overview
Test items
1.No load characteristic test of transformer
2.Transformer load characteristic test
3.Transformer ratio group error test
4.Withstand voltage test of transformer
5.Frequency doubling withstand voltage test of transformer
6.Power transformer insulation test
7.DC resistance test of power transformer
Features and Advantages
1.Safe and reliable
① The high-voltage test has a grounding verification function, and the test transformer cannot be closed without grounding with the tested object;
② During the ratio test, it has the function of checking the high and low voltage wiring, and automatically alarms and prompts when the high and low voltage sides are connected in reverse;
③ The closing of the voltage regulator has a zero position check function, and it cannot be closed when the voltage regulator is not in the zero position;
④ Equipped with a software, electrical, and mechanical three-level safety interlock design mechanism to prevent misoperation;
⑤ Equipped with software and hardware two-stage overvoltage and overcurrent protection mechanisms;
2.Efficient system working
① After setting the nameplate parameters of the test object on the computer, automatically generate the test parameters for each test item, and connect the test equipment to automatically complete the test;
② The transformation ratio test and direct resistance test can be connected once, and the equipment automatically completes the transformation ratio test and direct resistance test of all windings;
③ All experimental projects can be completed through a computer, which automatically collects test results and generates reports;
3.High measurement accuracy
① The CT and PT used in the system have an accuracy of 0.05 level and can be independently calibrated;
② The transformer ratio test, direct resistance test, power analyzer, etc. are all equipped with equipment not less than 0.2 level;
③ The instrument samples at high speed in real time and calculates the results. Computer software is used to collect test results, so the test process and results are not affected by computer configuration and communication bandwidth;
4.Simple operation and convenient maintenance
① The operation software has functions such as testing process guidance, wiring diagrams, online help, etc., which can enable testers to quickly get started;
② The system has three operating modes: manual, semi-automatic, and fully automatic, and the fully automatic mode provides a simple and efficient working mode; Manual and semi-automatic systems facilitate system debugging and maintenance;
③ The system adopts a distributed modular design for easy maintenance and replacement;
Parameter
ZC-112 standard current transformer
| ZC-112 standard current transformer | |
| Primary rated current | 100A, 50A, 25A, 10A, 5A, 2.5A, 1A |
| Secondary current | 1A |
| Operating frequency | 50 ~ 200Hz |
| Shift mode | secondary side switching |
| Accuracy level | 0.05S |
| Rated capacity | 1VA |
| Power factor | 0.8 |
| Insulation level | 3KV |
ZC-122 Standard VT
| ZC-122 Standard VT | |
| Primary voltage | 3kV |
| Second voltage | 100V |
| Working frequency | 50~200Hz |
| Nominal load | 5VA |
| Accuracy | 0.05 |
| Power factor | 1 |
| Insulation level | 5kV |
| Structure | dry air cooling |
| Bureau volume | less than 10pC |
ZC432/50kVA Medium frequency generator set
| ZC432/50kVA Medium frequency generator set | |
| Rated capacity | 50KVA |
| Rated input voltage | three-phase four wire 400V / 50Hz |
| Rated output voltage | three-phase 0~800V / 150Hz |
| Rated speed | 1480r / min |
| Power factor | 0.8 |
| Waveform distortion rate of output voltage | ≤ 2% |
ZC501A-25kVA/100kV AC test transformer
| ZC501A-25kVA/100kV AC test transformer | |
| Input voltage | 400V, 50Hz |
| Output voltage | 0 ~ 100kV |
| Capacity | 25kVA |
| The accuracy level of voltage measurement | ± (2%) × Reading (+ 1KV) |
ZC-201 Transformer Power Analyzer
| ZC-201 Transformer Power Analyzer | |
| Frequency measurement range | 40~65Hz, measurement accuracy level 0.2 |
| Current measurement range | 100mA~5A, measurement accuracy level 0.2 |
| Voltage measurement range | 10V~650V, measurement accuracy level 0.2 |
ZC-208 Transformer Winding Resistance and Ratio Comprehensive Tester
| ZC-208 Transformer Winding Resistance and Ratio Comprehensive Tester | |
| Environmental conditions | |
| Temperature | -5℃~40℃ |
| Relative humidity | <95% (25℃) |
| Altitude | <2500m |
| External interference | no strong vibration, no strong electromagnetic field |
| Power supply | 160VAC~280VAC, 45Hz~55Hz |
| Transformer ratio measurement range and accuracy | |
| Test range of transformation ratio | 0.5 ~ 10000 |
| Group test range | 1~12 |
| Angle difference test range | 0~360° |
| Measurement accuracy of transformation ratio | +0.1% (1~200); +0.2% (201~2000); +0.35% (2001~4000); +0.5% (4001~10000) |
| Angle difference measurement accuracy | 30 |
| DC resistance test range and accuracy | |
| Range | 0-180mΩ (10A) 180mΩ-360mΩ (5A) 360mΩ-1.8Ω (1A) 1.8Ω-4.5Ω (400mA) 4.5Ω-9Ω (200mA) 9Ω-45Ω (40mA) 45Ω-20kΩ (<5mA) 0 mΩ-20kΩ(Automatic) |
| Accuracy | +0.2% ±2μΩ |
| Resolution | 0.1μΩ |
| Insulation strength | |
| The insulation resistance of the voltage and current input terminals to the case is ≥100MΩ | |
| The power frequency is 2KV (effective value) between the input end of the working power supply and the shell, and the experiment lasts for 1 minute | |
ZC430-5kV Insulation Resistance Tester
| ZC430-5kV Insulation Resistance Tester | |
| AC Power | 220V±10%,50/60 HZ ,20 VA |
| Battery | 16.8V Lithium ion rechargeable battery |
| Battery Life | 5000V@100MΩ, 6 hour |
| Test voltage accuracy | the nominal value 100% to 110% |
| Voltage measurement accuracy | 5%+3V |
| Current test range | 10mA |
| Current measure precision | 5%+0.2nA |
| Short-circuit current | 5mA |
| Capacitance test range | 20uF |
| Capacitance testing accuracy | 15%+0.03uF |
| Capacitor discharge rate | from 5000V to 10V,0.5S/µF |
| Insulation resistance testing range and accuracy | T:23±5ºC ,RH :45 – 75% |
| Size/Weight | 26cm x 20cm x 16cm/3kg |












