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
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
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
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
Transmitter verification for voltage, current, power verification
Communication function Used to communicate with PC and other main
control modules, only supports "Programmable Power Interface
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
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
|Name:||Calibration Of Electrical Instruments||AC Voltage Adjustment Fineness:||0.01% RG|
|AC Voltage Accuracy:||Better Than ±0.05% RG||AC Voltage Stability:||Better Than ±0.01% RG/1min|
|AC Voltage Output Power Rate:||25VA Per Phase||AC Voltage Output Range:||0V～420V|
|AC Voltage Gear Setting:||0V～130V, 130V～280V, 280V～420V||AC Voltage Temperature Drift:||±8PPM/°C|
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)