This product is in accordance with GB/T13729-92 "General Technical Requirements for Remote Control Terminals", DL/T630-1997 "Technical Conditions for AC Sampling Remote Control Terminals" and Verification Regulation JJG126-95 "Transformation of AC Electricity to DC Electricity Electrician Measuring Transmitter It is a three-phase 0.05-level meter-source integrated device designed according to the requirements of the “Verification Regulations” and the “Verification Specification for AC Sampling and Measuring Devices” of the State Grid Corporation of China. The core technology of the meter in the device is a high-precision power frequency AC collector composed of a digital signal processor (DSP) and a 16-bit high-speed analog-to-digital converter; the signal part of the source is also composed of a DSP and a 16-bit high-speed digital-to-analog converter. Controlled sine wave and distortion wave signal source.
The analog input range of the device fully considers all the priority and non-priority values in the above-mentioned GB/T13729-92, DL/T630-1997 and JJG126-95 regulations. The device has the characteristics of high precision, stable and reliable work, convenient and flexible operation.
The display adopts a 6.5-inch TFT color LCD screen, and the chart and characters are displayed clearly.
Main Specifications
Voltage range: 57.7V, 100V, 220V, 380V,
Maximum output capacity per phase: 20VA; ·
Current range: 1A, 5A,
Maximum output capacity per phase: 10VA;
Voltage and current adjustment range: 0～120%,
Adjustment fineness: 5×10-5; ·
Frequency adjustment range: 45～65Hz,
Adjustment fineness: 0.001Hz,
Accuracy of setting value: 0.01Hz;
Phase adjustment range; 0~359.99°,
Adjustment fineness: 0.01°; ·
Voltage, current and power measurement accuracy: 0.05%; ·
Voltage and current output waveform distortion: ≤0.3%; ·
Voltage, current and power output stability: ≤0.01%/60s (peak-peak value); ·
Harmonic wave: 2～31 times,
Range: 0～20%,
Phase fineness: 0.01°·N (N is the harmonic order).
Transmitter measurement
DC voltage: ±1V, ±5V, ±10V, ±20V, 1～5V, 2～10V, 1～3～5V, 2～6～10V
Accuracy: 0.02%;
DC current: ±1mA, ±2.5mA, ±5mA, ±10mA, ±20mA, 4～20mA, 4～12～20mA
Accuracy: 0.02%;
Ripple accuracy: 1%;
Response time: 40ms;
Online measurement: 0～120V, 0～6A 0.1%.
Working power supply: single-phase 220V±10%, 50Hz±5%.
Use environment: temperature 20℃±10℃,
Relative humidity: ≤85%RH.
Volume weight: 460×460×175mm3, about 15kg.
Main functions and features 1. It can automatically check the basic errors of various AC sampling devices and electrical measurement transmitters in the power system, the changes caused by the voltage, current, waveform, power factor, etc., and the ripple in the output DC voltage (current) of the transmitter Content and response time, etc. 2. Distortion waves of 2 to 31 harmonics can be generated, and the number, order, amplitude and phase of harmonics to the fundamental wave can be controlled by program. 3. The working frequency band of the power amplifier is 40Hz～1kHz, which has good linearity. The current power amplifier is a constant current source, and the voltage power amplifier is a constant voltage source. Due to its light weight, it is more suitable for on-site calibration of AC samplers and electrical measuring transmitters. 4. The AC sampler can be verified offline (virtual load) or online (real load). 5. Equipped with RS-232 interface or USB interface. Through the upper computer software, the PC can control the device to perform automatic or manual inspection, and process and manage the results. 6. Equipped with a large-capacity non-volatile memory, which can store 300 pieces of raw data detected by the inspected meter for review and upload.
Mobile version
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