Automatic Transformer Test BenchZC-200-2500kVA-11kV
Features and Advantages
1.Simple system operation, safety and reliable;
① The whole test system takes into account the safety of test personnel and the reliability of equipment operation;
② Various over-voltage and current protection functions;
③ Reasonable space layout,clean and tidy wire layout.
2.Efficient system working
Taking full advantage of the microcomputer data processing technology, the measurement results are directly input into the microcomputer for calculation, which saves the trouble of artificial substitution calculation. Unified layout of external connection, avoid manual layout as much as possible. Only use the control button on the test bench for automatic switch when changing the wire.
3.Humanized system
Makes full use of machinery and electric interlock function,combined with software of computer, which can prevent occurrence of misoperation. It means system will refuse to start if you do not do as the safe processes which can protect the safety of people and equipment.
4.System reliability service
The system provides three operating modes: Manual, Semi-automatic and Automatic. Use manual operation when abnormal operation occurs, and normal test tasks will not be affected
5.High accuracy of system measurement
The precision of measuring instrument and transformer is higher than International standard.
System Introduction
System composition
| System composition | Transformer comprehensive characteristic test system: transformer comprehensive test bench, high-voltage test control cabinet |
| Operation prompt system | |
| Safety sound and light alarm system | |
| System error alarm system |
Specifications of test subjects
| Specifications of test subjects | Transformer type: oil immersed, dry type and special transformer |
| Voltage level of transformer:high pressure side: 10kV ~ 35kV、low pressure side: 0.4kV | |
| Transformer capacity: less than 2500kVA |
Test item
| Test item | No load characteristic test of transformer |
| Transformer load characteristic test | |
| Transformer ratio group error test | |
| Transformer DC Resistance test |
List of test items and equipment
| List of test items and equipment | |||
| Equipment Name | Type No. | Qty. | Remark |
| Main Control Bench | |||
| Integrated Bench of automatic test system | ZC-200 | 1 pcs | |
| High voltage test auxiliary control cabinet | ZC-200-HA-33 | 1 pcs | |
| Automatic test software system | |||
| Industrial computers and printers | |||
| Transformer characteristic test | |||
| Transformer power analyzer | ZC-201 | 1 pcs | Embedded in the Bench |
| Three phase induction voltage regulator | 200kVA | 1 pcs | Controlled by the Bench |
| Transformer DC Resistance test | |||
| Transformer DC Resistance tester | ZC-205-20A | 1 pcs | Embedded in the Bench |
| Transformation ratio group test | |||
| Transformer ratio tester | ZC-203A | 1 pcs | Embedded in the Bench |
Parameter
- ZC-203A Transformer Ratio Tester
- ZC-201 Transformer Power Analyzer
- ZC-205C-20A DC Resistance Tester
- ZC-112 standard current transformer
- ZC-122 Standard VT (Extented for 35kV)
| ZC-203A Transformer Ratio Tester | ||
| Environmental Conditions | Temperature | -5℃~40℃ |
| Relative Humidity | ≤95% (25℃) | |
| Altitude | ≤2500m | |
| External Disturbance | No extra strong vibration or extra strong electromagnetic field | |
| Power Supply | 160VAC~280VAC, 45~55Hz | |
| Test Range | Test range of transformation ratio | 0.8~5000 |
| Test range of group | 1~12 | |
| Test range of angle error | 0~360° | |
| Test Precision | Measurement precision of transformation ratio | +0.2%(0.8~2000) +0.3%(2001~5000) |
| Measurement precision of angle error | 30` | |
| Insulating Strength | The insulation resistances of voltage and current of the input terminal to shell should be equal to or greater than 100MΩ | |
| The withstand power frequency between the working power supply input terminal and the shell is 2KV (effective value). The experiment lasts 1 minute. | ||
| ZC-201 Transformer Power Analyzer | ||
| Environmental conditions | Temperature | -5℃~40℃ |
| Relative Humidity | ≤95% (25℃) | |
| Altitude | < 2500m | |
| External Disturbance | no extra strong vibration and electromagnetic field | |
| Power Supply | 220VAC ± 15%, 50Hz ~ 60Hz | |
| Measuring range | Voltage | 10 ~ 600V |
| Current | 0.5 ~ 60A | |
| Frequency | 45Hz ~ 65Hz | |
| Test accuracy | Voltage, current and frequency | the measurement accuracy is 0.2 |
| Power | measurement error < ± 0.5% (COS) Φ> 0.1) ±1.0%(0.02<COS Φ< 0.1) | |
| Insulation strength | The insulation resistance of voltage and current input terminals to the casing shall be ≥ 100m Ω. Power frequency 2kV (effective value) shall be borne between the input end of working power supply and the shell for 1 minute | |
| ZC-205C-20A DC Resistance Tester | ||
| Output current | select current automatically <20mA、1A、2.5A、5A、10A、20A (maximum 20 A) | |
| Test Range 1 (Accuracy: 0.2%±2d) | 100μΩ~1Ω(20A) 500μΩ~2Ω(10A) 1mΩ~4Ω (5A) 2mΩ~8Ω (2.5A) 5mΩ~20Ω (1A) | |
| Test Range2 (Accuracy: 0.5%±2d) | 10Ω-20KΩ (<20mA) | |
| Minimum resolution | 0.1 μΩ | |
| ZC-112 standard current transformer | ||
| Primary rated current | 400A, 200A, 100A, 50A, 25A, 10A, 5A | |
| Secondary current | 5A | |
| Operating frequency | 50 ~ 200Hz | |
| Shift mode | secondary side switching | |
| Accuracy level | 0.05 | |
| Rated capacity | 5VA | |
| Power factor | 0.8 | |
| Insulation level | 3KV | |
| ZC-122 Standard VT (Extented for 35kV) | ||
| Primary voltage | 1, 2, 3.0/√3 kV | |
| Second voltage | 100/ √3 V | |
| Working frequency | 50~200Hz | |
| Nominal load | 5VA | |
| Accuracy | 0.05 | |
| Power factor | 1 | |
| Shift mode | Second side handover | |
| Insulation level | 5kV | |
| Structure | dry air cooling | |
| Bureau volume | less than 10pC | |












