JJG 2086-1990 AC voltage measuring instrument verification system JJG2086-1990 standard download decompression password: www.bzxz.net
The AC voltage measuring instrument verification system is a procedure in which the national AC voltage reference device transmits the AC voltage reference value to the working measuring instrument through the transition comparison method from various AC voltage standard sources, AC/DC voltage conversion standards and high-precision AC digital voltmeters and other standard measuring instruments, and indicates its uncertainty or level and its basic verification method.

Verification System of AC Voltage Measuring Instruments
J.JG 2086—1990
Verification System of AC Voltage Measuring Instruments
Verification System of Vensuing Instrmeutsfnr AC Voliage
JIG 2086—1990
This national verification system was approved by the State Administration of Industry and Information Technology on November 24, 1990 and was implemented on May 1, 2001.
Drafting unit: Chinese Academy of Sciences
The technical provisions of this calibration system are drafted by the responsible person for explaining this calibration system. The main drafter:
Zhang Deshi
Wei Yuniu
(China Institute of Metrology)
(China Institute of Metrology)
Measuring standard instrument head,
Measuring cup standard solution
Working meter and otherwww.bzxz.net
Three-way calibration system The AC voltage measuring instrument verification system is a national AC voltage standard device that converts the AC voltage reference into AC digital voltmeters and other high-precision AC voltage meters through the transfer comparison method. It is suitable for AC voltage values ​​from 1.5V to MM)V. The AC voltage measurement instruments and AC voltage converters with a frequency range from 4% to 15000H are measured according to the specified procedures. The AC voltage reference is a national standard measuring instrument that must be used to transfer the voltage value. It is responsible for comparing the standard values ​​of my country's power transformation with the standard values ​​of various countries' AC power standards, and the calibration procedures and value transfer procedures of AC voltage standards of different standards of various scientific research, national defense, aerospace systems and national economic departments. It also establishes the calibration procedures of AC voltage standards of different levels of measuring instruments and the most important measuring instruments of the municipal and municipal measurement departments: 2 sets of national AC power standard equipment are mainly composed of a wide-band inductive voltage divider and an AC/DC voltage thermal conversion comparator to establish AC voltage reference values ​​ranging from 0.5V to 4V, among which the AC/DC thermoelectric converter is the main component of the AC/DC thermal conversion comparator, also known as high-accuracy AC/DC conversion standard, which determines the AC voltage reference value by reversing the DC standard voltage and the high-accuracy AC voltage conversion standard, and generates a value of thermoelectric potential in the high-accuracy AC/DC voltage conversion standard. This thermoelectric potential is monitored by a high-precision constant-current voltage source and a high-resolution current compensator circuit, thereby realizing the value transfer of the AC voltage standard value. The DC standard voltage value is determined by a precision digital current meter, and its uncertainty is better than 10×10-, and the resolution is 0.1V. The stability of the constant-current voltage source should be better than 10.05V, and the output adjustment accuracy should be better than 0.0V. In addition, the DC compensator that monitors the AC-DC voltage conversion and output phase thermoelectric potential adopts the UJ42 DC comparison potentiometer. In addition to the necessary recording instruments, the realization of the three-reference value transfer of the AC voltage must also have a high-stability voltage source and an adjustable auxiliary voltage device. 3 The range of the AC voltage reference standard value:
0.5V to 600, from 40-15z
4 The uncertainty of the AC voltage base conversion ||tt ||a<2xl0
2. Measurement standard instrument
5. AC voltage gauge. The AC standard electric meter is a standard instrument. The AC standard electric meter is a standard AC-DC voltage conversion standard. It directly creates a standard value transmission through the AC voltage base elimination device and uses the comparison method to achieve standard value transmission. At the same time, due to the different uncertainty tables, the AC voltage measurement standard is determined to be (0.51)×101(2-5)10-“two beautiful. The latter type of standard instrument is a type of standard instrument that is directly or indirectly transmitted through a comparison station. To ensure the reliability of transmission, their uncertainty The uncertainty of the standard meter is 35 meters. 5.1 The uncertainty of the AC standard meter is = (0.5-1 × 174: the measurement range is 0.5-6M0V, the reduction rate range is 4)-15J0. The value is transferred by the AC standard voltage source, and the uncertainty is = (2-5) × 10. The AC standard voltage source can also be measured by the direct comparison method of the uncertainty = (0.51) × "A standard medium voltage loss including digital dynamic pointer instrument) 5.2 The small uncertainty of the AC standard source is - (0.5.-1) × 11, the environmental standard electricity account Range: 4.50V, frequency range: 40-1500Hz, the AC voltage is directly transmitted by some devices: uncertainty 2 = (2-5) × 0-4 current transformer voltmeter (including digital and analog indication measurement rate receiving meters! It can also be transmitted by the AC standard voltage positive selection point comparison method with uncertainty 5: 0.5-1)1+: 5.3 AC voltage conversion standard uncertainty - (0.5--1) × [0-, voltage range: 0.5--V, frequency range: 40~15000Hz: white AC voltage standard meter is set to filter and compare the value transmission. The AC standard source with uncertainty 8-(2~5) × 4 can also be transmitted by the AC/DC voltage conversion standard with uncertainty = (0.5~1) × 10-*.
5.4 Uncertainty = (0.511*104) standard voltmeter, AC standard voltage source, AC self-current voltage conversion standard - standard device can be directly or through comparison to the uncertainty 5: (2~5》×10- standard AC source, AC standard power meter, AC/DC conversion standard for value transfer: To ensure the reliability of value transfer, the value transfer device verification uncertainty = (.5--1)×1-+ standard display instrument is considered to be positive.
In addition to 13 and metrological standard instruments, this standard instrument is also used in the comprehensive measurement of AC current standard device for years to check the standard current Thermal comparison and other standard measuring instruments. Three working measuring instruments
8xian measuring alternating current positive value working measuring instruments are numerous in type, type, grade and uncertainty: generally divided into uncertainties = 11-5) × 10- and = (1-5) × 0-2 categories, analog indication measuring instruments are divided into two categories such as (.1-<.5) numbers and (1. Industry ~ 5.0) payment. Measuring range: 3.5-600V: frequency range 40~15000Hz8.1 shares uncertainty 2 = (1~5) 10- into grade (U.1~0.5) grade to measure voltage instruments only by the meter standard etc. only small uncertainty = (2:-5) × 1- 1. At the same time, the uncertainty is not determined by the instrument group. The uncertainty is not less than 10 × 10- or 1.1. The uncertainty is not less than 10 × 10- or 1.5 × 10-. The uncertainty is not less than 10 ... Instruments for measuring AC voltage, such as 1: AC voltage transmitter with a relatively fast speed. Note: All instruments that are used in various ratio standards (such as AC voltage sensors or AC induction dividers, etc.) and are within the range of the current measurement and quality standards should be tested in accordance with the regulations of this verification system: 872
West AC voltage measuring instrument verification system diagram Must benefit voltage meter industry instrument verification system diagram M Huazhou C.5-V
: 41150001
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