Kwh Meter Standard DC Voltages / High Stability Calibration Of
1. Standard DC Voltages introduction
The XL-901 Standard DC Voltages is the latest DC energy metering
standard device developed by our company. It is aimed at the needs
of the current DC power meter verification on the market, follows
the national verification rules of the DC energy meter, and
combines the latest technology of the company, using imported
industrial grade devices, can accurately measure the high-precision
voltage signal of DC 0V ~ 1000V and DC 0 ~ The 600A high current
signal has an accuracy rating of 0.02. The device has passed the
test of Guangdong Electric Power Research Institute. Can be used
for calibration of DC voltage, current or electrical energy. It can
also be used for calibration of DC energy meters and provides
automatic verification of power errors.
The device adopts 800×600 liquid crystal display, which is
displayed in Chinese. The interface is clear and simple, easy to
operate and has good visual effect. The core module adopts 32-bit
high-speed DSP, which has powerful functions, high reliability
level, flexibility and adaptability.
|Product Name:||DC Voltage Calibrator||DC Voltage:||0~1000V|
|Display:||TFT LCD||Volume:||400 Mm × 440 Mm × 290 Mm|
3. Main functions
1) Establish the DC standard electric energy meter part of the
0.05-level DC electric energy meter verification device, which can
realize the overall verification of the installed DC electric
energy meter below 0.2.
2) It is possible to use the standard table method recommended by
the JJ G842-2017 DC energy meter verification procedure to realize
the error verification of the DC energy meter.
3) It can measure DC current from 0 to 500A.
4) It can measure DC voltage of 0~1000V.
4. Main technical features
1) DC standard energy meter adopts wide range range adaptive
2) Periodic sampling of 256 points, capable of capturing rapid
changes in load.
3) Use dual 24Bit AD technology to combine high sampling rate (and
synchronous), high precision and low offset offset.
4) With industrial computer, 800*600 touch screen, it is more
convenient to operate.
5) It is equipped with powerful and easy-to-use operating software
that can run on industrial computer or PC.
5. Technical indicators
1) 0~500A DC current measurement technical indicators:
Measuring range: 0~500A
Measurement accuracy: 0.01%+10uA
Stability: 0.01% or less (one minute), typical value: 0.004%
Input impedance: 500A: < 0.001Ω
2) 0~1000V DC voltage measurement technical indicators:
Measuring range: 0~1000V
Measurement accuracy: 0.01% +1 mV
Stability: 0.01% or less (one minute), typical value: 0.002%
Input impedance: >1MΩ
3) Power supply voltage: AC 220V ± 10% 50Hz
4) Working environment temperature: -5 °C ~ 40 °C
5) Maximum relative humidity: <85%
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
- 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.