High Speed Calibration Of Electrical Instruments , 3 Phase AC Current Calibrator

1 . Overview

Calibration Of Electrical Instruments three-phase intelligent program-controlled standard power source is a new generation of high-precision standard power source based on 1.2 G MAC DSP, large-scale FPGA, high-speed and high-precision DA and high-fidelity power amplifier. Applicable to electric power system, electric power, remote control, dispatching and other power departments and enterprises that need measurement, inspection and high-precision standard signal sources. It is also suitable for other occasions where high-precision standard signal sources are required for measurement and inspection.
XL-803K can output high-precision voltage and current with adjustable frequency, phase and amplitude at power frequency (40Hz~65Hz). It is a highly accurate adjustable voltage and current standard source. The XL-803K can output very pure sinusoidal voltage current with a distortion of no more than 0.1%, typically 0.03%. The XL-803K's voltage and current output has a very high output stability with a typical value of 0.004% RD. Therefore, it is very suitable for work situations requiring high-precision inspection and calibration, such as the measurement department for the detection of various voltage, current, power and other electrical parameter meters.

2. Main features

1) It is possible to output a pure sinusoidal power signal with a distortion of 0.03% (typical).
2) Each harmonic output can be superimposed on the fundamental wave.
3) The frequency output can be adjusted from 40Hz to 65Hz, the resolution is 0.002Hz, and the accuracy is 0.002Hz.
4) The AB phase is a frequency reference, and the C phase is a separate frequency reference, so it can be phase-separated.
5) The phase 0~360 degrees can be adjusted arbitrarily, which can easily simulate various power supply situations and even reverse power transmission.
6) Strong load capacity, can carry capacitive, inductive, resistive load or composite type load, and the load regulation rate is better than 0.01% RG.
7) Excellent temperature stability, the core device is a military grade product with a temperature coefficient as small as 1PPM, which can guarantee the output precision in the outdoor temperature environment.
8) It is powerful and flexible with 32-bit MCU+DSP processor.
9) The waveform of the power frequency is up to 50,000 points per week, and the internal signal output does not need a filter for smooth filtering, which ensures the accurate output of the waveform, so that the system can output accurate harmonics, and the system has excellent harmonic distortion. index.
10) Other functions can be extended through an RS232 serial port.
11) Perfect overcurrent, overvoltage, overheat, short circuit, open circuit, overload protection.
12) Built-in high-precision energy meter to monitor the output status in real time.

3. Main functions

Main function Description
AC standard source output can output power frequency (40Hz ~ 65Hz) frequency, phase and amplitude adjustable high-precision voltage and current, convenient for power workers to develop, verify
Small signal input Supports high precision small DC signal input function
Transmitter verification for voltage, current, power verification
Communication function Used to communicate with PC and other main control modules, only supports "Programmable Power Interface Protocol"
Power check function for verifying energy pulse input
Split-phase frequency output The A and B phase frequencies of the device are uniformly adjustable, and the C-phase frequency can be independently adjusted, which is convenient for users who need two frequencies, such as the synchronous device in power protection.
User-defined functions User-definable function output, but requires functions that do not contain DC components
Secondary development Users can refer to the "Programming Power Interface Protocol" to develop various functions required through the communication port.
Software control function With XL-1000 series operating software, control is simple and convenient
Internal measurement function Real-time detection of output amplitude phase frequency and other indicators, showing output status
Alarm function When the device is abnormal, the system will automatically start the protection program, accompanied by a sound or interface pop-up prompt. At this time, the user should power off and find the cause of the fault and eliminate it, such as voltage to ground short circuit, current open circuit output.

4. Main Technical Indicators

4.1. AC voltage output

4. 2. AC current output

Adjustment fineness 0.01% RG
Accuracy is better than ±0.05% RG
Stability is better than ±0.01% RG/1min
Distortion better than 0.1% (non-capacitive load)
Output power rated at 25VA per phase
Full load regulation is less than ±0.01% RG
Full load adjustment time is less than 1mS
Output range 0A～10A(20A)
Gear setting 0A～0.2A, 0.2A～1A, 1A～6A, 6A～10A(20A)

Shenzhen Xinglong Technology Co., Ltd. was established in 2004, is located in the Nanshan District, Shenzhen high tech Industrial Park, is a professional engaged in the Smart Substation detection equipment R & D, production and sales of national key high-tech enterprise (certificate number: GF201244200546). Attention to intelligence (in the field of digital substation testing technology research, from the beginning of 2009 will be gradually introduced various types of testing equipment, including electronic transformer calibrator, digital electric energy meter calibrator (check), with unit testing instrument, and wisdom to substation field testing and acceptance of the project provides the means and tools. Companies actively involved in the development of a number of national standards, to help power companies to solve some of the problems in the field of intelligent substation testing industry technology.

- SYN is a technology started the company, our unremitting pursuit of technology embodied in products of excellent performance, company's substation intelligent test series products has 26 provinces in the country get successful application, and successfully applied to the "China Electric Power Research Institute (EPRI)", "Chinese Academy", "national high voltage metering station" national level institutions.

The company established a complete quality control system and after-sales service system, as of the end of 2014 the company engineering staff has been involved in the testing of more than 100 National Smart substations, for users to solve a lot of technical problems.

Company has won 7 provincial and ministerial science and technology award, the product has laid a good reputation in the industry.

2014 August Xinglong technology successfully in the shares of small and medium-sized enterprises transfer system (the new board) listing (Stock Code: 830924 and become a public company.

Syn can not develop without the support from all sectors of society, we warmly welcome domestic and foreign customers, agents, investors and our sincere cooperation, common development. The future of the company will be with the national system for the transfer of shares in the capital market platform, efforts to technology upgrades and new product research and development, with three to five years to intelligent substation test products to cover all aspects of the smart substation. Strive to become a benchmark for the field of intelligent substation testing business, for the construction and development of China's smart grid to contribute their own diligence and wisdom.