Uhv-740 Capacitive Voltage Transformer on-Site Calibration Device

• After-sales Service: 1 Year
• Warranty: 1 Year
• Index Name: Capacitive Voltage Transformer Field Calibration I
• Model NO.: UHV-740
• Type of The Voltage Transformer to Be Me: Gis Electromagnetic (PT), Capacitive Voltage Trans
• Primary Voltage: 6-500kv/√3(Non-Standard Primary Voltage Is a
• Secondary Voltage: 100V,100V/√3,110V,110V/√3,100/3V
• Accuracy of Error Measurement: 0.05%
• Partial Pressure Ratio Measurement Accur: 0.5%
• Measuring Accuracy of Partial Voltage Ca: 2%
• Overall Dimensions (mm): 496*394*185
• Weight: 14kg
• Transport Package: Wooden Case or Carton
• Specification: CE/ISO
• Trademark: UHV
• Origin: China
• Production Capacity: 200 Sets Per Month

Product Description

Product overview
When the error calibration of UHV-740 GIS electromagnetic (PT) and capacitive voltage transformer (CVT) is carried out, the test wiring is complicated, the required equipment is various, and the equipment is very heavy, and it is very difficult to carry on site. The capacitive voltage transformer field calibrator (hereinafter referred to as the tester) can measure the actual error under the condition of low voltage and high voltage operation, and a single device can meet the measurement of field electromagnetic and capacitive voltage transformer errors. It can cover 6kV/100V, 6kV/ /100V, 10kV/100V, 10kV/ /100V, 35kV/100V, 35V/ /100V, 110kV/100V, 110kV/ /100V, 220kV/100V and 220kV/ Measurement of electric electromagnetic and capacitive voltage transformers of /100V/variable ratio. Some new ideas are introduced in the design of the instrument, such as different frequency power supply technology, common platform technology, voltage simulation load, internal high accuracy voltage transformer and self-boosting power supply. Users feel more convenient, fast and efficient when using the instrument. The instrument adopts WINCE system, humanized color touch screen operation, and the man-machine interface is intuitive and convenient.

Products features
1,No boost source, standard transformer, load box, using the principle of voltage transformer load curve extrapolation method, a single instrument can realize the field test GIS electromagnetic voltage transformer (PT) and capacitive voltage transformer (CVT) 20%, 50%, 80%, 100%, 120% of the full load and light load of the specific difference and Angle difference. The test results fully meet the national instrument transformer verification regulations.
2,A single tester can complete the measurement of GIS electromagnetic voltage transformer (PT) and capacitive voltage transformer (CVT) error (ratio difference, Angle difference). At the same time, it can measure CVT capacitance partial voltage ratio, partial voltage capacitance, intermediate PT ratio, intermediate voltage, DC resistance and so on.
3,With polarity, ratio, wiring check function.
4,Complete all tests at one time, improve work efficiency, avoid operating errors to personal and instrument damage, to ensure safety.
5,It has the characteristics of fast test speed, large processing information and large storage capacity (can store millions of data). The memory is 16GB and can store millions of data sets.
6,The tester adopts frequency conversion technology and digital processing, and has strong anti-interference ability in the field.
7,The maximum voltage of the test process does not exceed 4kV, and various protective measures are taken to ensure personal safety and equipment safety and reliability.
8,The test procedure is simple to operate.
9,Capacitive voltage transformer field calibrator adopts WINCE system, humanized color touch screen operation, but also can use the mouse to operate the instrument, the human-machine interface is intuitive and convenient.
10,The capacitive voltage transformer field calibrator has dual USB communication port, which can import the internal data of the instrument into the U disk greatly facilitate the field data management. The instrument can also be operated with the mouse.
11,The connection diagram attached to the capacitive voltage transformer field calibrator is simple and intuitive, and the control connection can be used on site to ensure that the test connection is correctly completed at one time and reduce the preparation time.

Product Parameter
Technical Parameters

Environmental condition	Temperature	(5~40)ºC
	Relative humidity	<80%(25ºC)
	Sea level	<4500m
	Power frequency	50±0.5Hz
Type of the voltage transformer to be measured	GIS Electromagnetic (PT), Capacitive Voltage Transformer (CVT)
Primary voltage	6-500kV/√3(Non-standard primary voltage is also acceptable)
Secondary voltage	100V,100V/√3,110V,110V/√3,100/3V
Accuracy of error measurement	0.05%
Partial pressure ratio measurement accuracy	0.5%
Measuring accuracy of partial voltage capacitance	2%
DC resistance measurement accuracy	0-0.1Ω	3%
	0.1-50	1%
Internal standard voltage transformer section	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
		330kV/100V,500kV/√3 /100V/√3
	Accuracy class	0.02%
Verification part of the calibrator	Voltage range	0-100V (dial indicator error 0.5%)
	Ratio error	0.001%-3% (100V)
	Angular 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)
Overall dimensions (mm)	496*394*185
Weight (kg)	14.0