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Address
Lane 355, Zhangye Road, Jiading District, Shanghai
Shanghai Duanyi Electric Technology Co., Ltd
Lane 355, Zhangye Road, Jiading District, Shanghai
Product Introduction
SDYPT-E Low Calibration High Voltage Transformer Calibration InstrumentIt is a field testing instrument designed by our company to reduce the workload of on-site electromagnetic voltage transformer calibration. forVerify the actual error of the voltage transformer in high voltage operation under low voltage conditions.The instrument hasIt has the functions of measuring voltage transformer errors using the low calibration high method and measuring voltage transformer errors using the potential difference method, which facilitates on-site calibration of measuring devices.The instrument has adopted some new technologies in its design, such as 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.
SDYPT-E Low Calibration High Voltage Transformer Calibration InstrumentTechnical specifications
environmental conditions |
temperature |
5~40°C |
relative humidity |
<80%(25°C) |
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altitude |
<2500m |
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power frequency |
50Hz ±0.5Hz |
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Instrument synthesis |
0.05% |
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Accuracy level range of the tested voltage transformer |
0.2, 0.5, 1 |
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Type of voltage transformer being tested |
Electromagnetic voltage transformer |
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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 /√3/100V/√3 220kV /√3/100V/√3 |
accuracy class |
0.02% |
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working voltage |
0V~2400V |
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output capacity |
50VA |
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Internal transformer calibrator section |
Traditional measurement range |
in-phase component (%): 0.0001~3.0 Resolution: 0.0001 |
orthogonal component (Score):0.001~99.9 Resolution: 0.001 | ||
Low calibration high measurement range |
in-phase component (%): 0.0001~200.0 Resolution: 0.0001 |
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orthogonal component (Score):0.001~999.9 Resolution: 0.001 | ||
admittance (Ms): 0.0001~59.9 Resolution: 0.0001 | ||
Basic error |
In-phase component: DX=± (X × 2%+Y × 2% ± 2 characters) |
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Orthogonal components: DY=± (X × 2%+Y × 2% ± 5 words) | ||
Display values of "X" and "Y" instruments | ||
The quantification error of the "5 words" instrument | ||
Dial indicator:Level 1 | ||
scope of work |
Voltage:(5%~149%)Un (Un=100V,150V,100V/√3) |
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workload |
Voltage:A for x<0.25VA (100V) |
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Polarity indication |
Measure the working voltage using the low calibration high methodIf the voltage is above 2V, during testing, short-circuit the tested voltage transformer a to the tester x, and short-circuit the tested voltage transformer x to the tester a. At this time, the error is 200%, and there should be polarity indication |
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Attention: During the experiment, if it exceedsWhen there is still no polarity error indication at 10V voltage, it indicates that the instrument itself is faulty. Please stop the test to avoid damaging the instrument | ||
Internal voltage load box section |
capacity range |
0.0VA~500VA |
power factor |
0.1~1.0 |
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accuracy class |
3% |
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Working voltage range |
0.5V~40.0V |
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Voltage withstand test and instructions |
terminalA. The X and () terminals are connected. K. The D, a, and x terminals are not connected to the () terminal |
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Instrument power consumption |
100VA |
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Instrument output power |
500VA |
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Product Features
1. The instrument has added a dual winding PT transformer testing function, which does not require an external load box during testing;
2. The instrument has a variable ratio self boosting voltage transformer standard with an accuracy level of 0.05, which can accurately calibrate the error of power voltage transformers at voltages of 1200V and 2400V;
3. The instrument uses simulation load technology in the measurement of electromagnetic voltage transformers, which can calculate the load error of the voltage transformer under rated load and lower limit load conditions. Therefore, a voltage load box can be omitted during the calibration of electromagnetic voltage transformers;
4. The accuracy level of the internal transformer calibrator part of the instrument is level 2;
5. This instrument has the function of automatic sampling of regulatory points, making it very convenient and fast for users to conduct regulatory measurements;
6. The instrument has an internal power source output, automatic boost, and excellent protection performance;
7. This instrument adopts our company's newly developed universal platform technology, in which users can easily access useful information such as previous measurement data, wiring diagrams of various measurement objects, etc. Directly provide measurement values, rounding values, error curves, etc. for each point. Automatically judge the measurement results. The intelligence level of the instrument has been further improved;
8. This instrument can measure temperature and humidity, allowing users to understand the working environment on site at any time.