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Product IntroductionProduct Introduction
When performing error calibration on HTQC-H GIS electromagnetic (PT) and capacitive voltage transformer (CVT), the testing wiring is complex, and a variety of equipment types are required. Moreover, the equipment is bulky and difficult to transport on site. The on-site tester for electromagnetic and capacitive voltage transformers (hereinafter referred to as the tester) has the ability to measure the actual error under high voltage working conditions at low voltage, and a single device can meet the measurement of errors for electromagnetic and capacitive voltage transformers on site. It can cover the measurement of power electromagnetic and capacitive voltage transformers with 6kV/100V, 6kV/100V, 10kV/100V, 10kV/100V, 35kV/100V, 35V/100V, 110kV/100V, 110kV/100V, 220kV/100V, and 220kV//100V/ratio. During the design of the instrument, some new ideas were introduced, including the use of different frequency power supply technology, universal platform technology, voltage simulation load, internal high-precision voltage transformers, and self boosting power supply. Make users feel more convenient, fast, and efficient when using the instrument. The instrument adopts WINCE system, user-friendly color touch screen operation, and intuitive and convenient human-machine interface.
Product nickname: GIS Electromagnetic and Capacitive Voltage Transformer Field Tester. GIS Electromagnetic and Capacitive Voltage Transformer Field Calibration Instrument
Product parametersProduct Parameters
Technical Parameter
| environmental condition | temperature | （5~40）℃ |
| relative humidity | <80%（25℃） | |
| altitude | <4500m | |
| Power frequency | 50±0.5Hz | |
| Type of voltage transformer being tested | GIS electromagnetic (PT), capacitive voltage transformer (CVT) | |
| Error measurement accuracy | 0.05% | |
| Accuracy of voltage divider ratio measurement | 0.5% | |
| Accuracy of voltage divider capacitance measurement | 2% | |
| Accuracy of DC resistance measurement | 0-0.1Ω | 3% |
| 0.1-50 | 1% | |
| Internal standard voltage transformer section | Variable ratio range | 6kV/100V, 6kV/√ 3/100V/√ 3 |
| 10kV/100V, 10kV/√ 3/100V/√ 3 | ||
| 35kV/100V, 35kV/√ 3/100V/√ 3 | ||
| 110kV/100V, 110kV/√ 3/100V/√ 3 | ||
| 220kV/100V, 220kV/√ 3/100V/√ 3 | ||
| accuracy class | 0.02% | |
| Calibration section of the calibrator | Voltage range | 0-100V (with a dial gauge error of 0.5%) |
| Ratio difference | 0.001%-3% （100V） | |
| phase angle difference | 0.00′-50′（100V） | |
| error | △ X=± (2% × X+2% × Y ± 2 words) | |
| △ Y=± (2% × X+2% × Y ± 2 words) | ||
| Admittance | 0.1mS-99.9mS | |
| error | △ X=± (2% × X+2% × Y ± 2 words) | |
| △ Y=± (2% × X+2% × Y ± 2 words) | ||
| Dimensions (mm) | 496*394*185 | |
| Weight (kg) | 14.0 | |
Note:
1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. If there is any act of theft or copying, legal responsibility will be pursued.
2. To learn more about Huatian products, please enter the product center. Service Hotline: 400-8855-448
Product FeaturesProduct Characteristics
- 1. Without the need for a boost source, standard transformer, or load box, the principle of voltage transformer load curve extrapolation is adopted. A single instrument can achieve on-site testing of the ratio and angle differences of GIS electromagnetic voltage transformers (PT) and capacitive voltage transformers (CVT) at 20%, 50%, 80%, 100%, and 120% full load and light load. The test results fully comply with the national transformer calibration regulations.
- 2. A single tester can complete the measurement of errors (ratio difference, angle difference) in GIS electromagnetic voltage transformers (PT) and capacitive voltage transformers (CVT). At the same time, it can measure the capacitance voltage division ratio, voltage division capacitance, intermediate PT transformation ratio, intermediate voltage, DC resistance, etc. of CVT.
- 3. It has polarity, transformation ratio, and wiring inspection functions.
- 4. Complete all tests with one wiring, improve work efficiency, avoid damage to personnel and instruments caused by operational errors, and ensure safety.
- 5. It has the characteristics of fast testing speed, large information processing capacity, and large storage capacity (capable of storing millions of data). The memory is 16GB and can store millions of sets of data.
- 6. The tester adopts frequency conversion technology and digital processing, with strong anti-interference ability on site.
- 7. The maximum voltage during the testing process shall not exceed 4kV, and various protective measures shall be taken to ensure personal safety and equipment safety and reliability.
- 8. The testing process is easy to operate.
- 9. The instrument adopts the WINCE system, with a user-friendly color touch screen operation, and can also be operated with a mouse. The human-machine interface is intuitive and convenient.
- 10. The instrument has dual USB communication ports, which greatly facilitate on-site data management by importing internal data into a USB drive. The instrument can also be operated using a mouse.
- 11. The instrument comes with a wiring diagram, which is simple and intuitive. By comparing the wiring on site, the correct testing wiring can be completed in one go, reducing preparation time.
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Product Attachment Diagram
Host packaging box
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Front of the host
Test Line 1
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USB connection cable
Instruction manual, inspection certificate, certificate of conformity
Product detail diagram
TEST
TEST
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power line
Connecting line
Connecting line
TEST
backpack
Detail drawing
Detail drawing
Detail drawing
Detail drawing
Detail drawing
product certificateProduct Certificate
Our company's products are strictly produced in accordance with international and national standards and industry regulations. They have passed the testing of national, provincial, and municipal power research institutes, measurement centers, and authoritative power departments, and have fully passed the ISO9001 international quality management system certification, the People's Republic of China manufacturing measuring instrument license, GB/T19001-2016 quality management system requirements, GB/T24001-2016 environmental management system requirements, and GB/T45001-2020 occupational health and safety management system requirements.
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