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1 year
| Model Number | ZC-120A | Brand Name | Kvtester |
|---|---|---|---|
| origin | China | Small Orders | Accepted |
Product Description
The ZC-120A Voltage Transformer Field Tester is a specialized field testing instrument designed by our company to alleviate the heavy workload associated with the on-site verification of electromagnetic voltage transformers. This instrument is capable of accurately determining the actual error of a voltage transformer under high-voltage operating conditions by performing verification tests at low voltages. It covers the measurement of electromagnetic power voltage transformers with various transformation ratios, including 10kV/100V, 10kV/√3 /100V/√3, 35kV/100V, 35kV/√3 /100V/√3, 110kV/√3 /100V/√3, and 220kV/√3 /100V/√3. The instrument incorporates novel concepts and utilizes advanced technologies in its design—such as a "Universal Platform" technology, simulated voltage loads, an internal high-accuracy reference voltage transformer, and a self-boosting power supply—to ensure a more convenient, rapid, and efficient user experience.
Product Features:
1. The instrument features a newly added testing function for dual-winding PTs (Voltage Transformers); this allows for testing without the need for an external load box and utilizes a user-friendly touchscreen interface for operation.
2. Internally, the instrument houses a multi-ratio, self-boosting standard voltage transformer with an accuracy class of 0.05. This enables the accurate verification of errors in power voltage transformers at test voltages of 1200V and 2400V.
3. When measuring electromagnetic voltage transformers, the instrument employs a simulated load technology. This technology allows for the extrapolation of load errors under both rated load and minimum load conditions; consequently, an external voltage load box is not required during the verification process for electromagnetic voltage transformers.
4. The internal voltage transformer verifier module within the instrument possesses an accuracy class of 2.
5. The instrument features an automatic sampling function for standard-specified test points, making the process of conducting routine compliance measurements extremely convenient and rapid for the user.
6. The instrument incorporates an internal power source output and automatic voltage boosting capabilities, complemented by superior safety protection features.
7. The instrument utilizes our company's newly developed "Universal Platform" technology. This platform allows users to conveniently access useful resources—such as historical measurement data and wiring diagrams for various types of test objects—directly through the interface. It directly provides measured values, rounded values, error curves, and other data for each specific point. It automatically evaluates the measurement results, thereby further enhancing the instrument's level of intelligence.
Specification:
| Environmental Conditions | |
| Temperature | 5–40°C |
| Relative Humidity | <80% (at 25°C) |
| Altitude | <2500 m |
| Power Frequency | 50 Hz ±0.5 Hz |
| Equipment Parameters | |
| Instrument Overall Error | 0.05% |
| Accuracy Class Range of Tested Voltage Transformers | 0.2, 0.5, 1 |
| Instrument Power Consumption | 100 VA |
| Instrument Output Power | 500 VA |
| Internal Standard Voltage Transformer Parameters | |
| Transformation Ratio Range | 10kV/100V, 10kV/√3 / 100V/√3 |
| 35kV/100V, 35kV/√3 / 100V/√3 | |
| 110kV/√3 / 100V/√3 | |
| 220kV/√3 / 100V/√3 | |
| Accuracy Class | 0.05% |
| Operating Voltage | 0V – 2400V |
| Output Capacity | 50VA |
| Internal Instrument Transformer Calibrator Parameters | |
| Measurement Range (Traditional Mode) | In-phase Component (%): 0.0001 – 3.0 | Resolution: 0.0001 |
| Quadrature Component (min): 0.001 – 99.9 | Resolution: 0.001 | |
| Measurement Range (Low-to-High Calibration Mode) | In-phase Component (%): 0.0001 – 200.0 | Resolution: 0.0001 |
| Quadrature Component (min): 0.001 – 999.9 | Resolution: 0.001 | |
| Admittance (mS): 0.0001 – 59.9 | Resolution: 0.0001 | |
| Basic Error | In-phase Component: △X = ± (X × 2% + Y × 2% ± 2 digits) |
| Quadrature Component: △Y = ± (X × 2% + Y × 2% ± 5 digits) | |
| “X”, “Y” — The displayed values on the instrument | |
| “5 digits” — The quantization error of the instrument | |
| Percentage Meter: Class 1 | |
| Operating Range | Voltage: (5% – 149%) Un (where Un = 100V, 150V, or 100V/√3) |
| Operating Burden | Voltage: a-to-x < 0.25 VA (at 100V) |
| Polarity Indication | During the first step of measurement in the Low-to-High Calibration Mode—provided the operating voltage exceeds 2V—if the “a” terminal of the Voltage Transformer Under Test (VTUT) is connected to the “x” terminal of the calibrator, and the “x” terminal of the VTUT is connected to the “a” terminal of the calibrator, the displayed error should read 200%, and a polarity error indication should appear. Note: During testing, if the voltage exceeds 10V and no polarity error indication appears, it indicates a malfunction within the instrument itself. Please stop the test immediately to prevent damage to the instrument. |
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About US:
Kvtester Electronics Technology Co.,Ltd. is a R & D, production, operating in one of the high-tech enterprises, the company is mainly engaged in high voltage test equipment, power measurement and test equipment and instrumentation, substation online monitoring system and related software products R & D, design, production, sales and service. Its predecessor, Wuhan Institute of high pressure test equipment factory was established in 1992, is one of the earliest manufacturers engaged in high-pressure test.
At present, Kvtester users throughout all the provinces, is Chinese high voltage test equipment and instruments of professional brand. Company and the national grid, the southern power grid, the five major power generation group, the city power supply company as well as PetroChina, Sinopec, China can build, iron and other large enterprise groups to establish cooperative relations. At the same time, our company actively explore overseas markets, products have been successfully exported to Mexico, Brazil, Chile, Ecuador, Indonesia, Bangladesh, Iran, India, Saudi Arabia, Mongolia, Russia, Ukraine, Vietnam, the Philippines and other 10 countries and regions, enterprise business presented the trend of rapid development.
Kvtester sincere commitment to the use of professional experience in the field of measurement and control of power, to bridge the gap between the technology, allowing users to experience the high-tech, high-quality testing services; "hand in hand and, sharing a win-win". We are trying to do industry technology pioneer, meticulous build advanced products, for the Chinese wisdom can power testing equipment industry to make greater contribution. Kvtester sincere sincerely welcome the full cooperation colleagues from all walks of life, hand in hand!
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| FOB Port | Shanghai | Lead Time | 3–5 days |
|---|---|---|---|
| Weight per Unit | 5.0 Kilograms | Dimensions per Unit | 36.0 x 30.0 x 25.0 Centimeters |
| Units per Export Carton | 1.0 | Export Carton Dimensions L/W/H | 46.0 x 36.0 x 32.0 Centimeters |
| Export Carton Weight | 1.0 Kilograms | ||
| Main Export Markets |
Asia,
Australasia,
Central/South America,
Eastern Europe,
Mid East/Africa,
North America,
Western Europe | ||
|---|---|---|---|
| Payment Method | PayPal | ||||
|---|---|---|---|---|---|







