0.1-100A High Stability Portable Three Phase Energy Meter Test
Equipment
Description
YM-3303 three-phase portable energy meter testing equipment is a
kind of desk-top portable energy meter testing device which is
developed and manufactured by YUEQING yomin electric co.,LTD, This
device is equipped with a three-phase high-stability
program-controlled power source and three-phase multi-function
standard meter developed and manufactured by the Company; the
device can be operated with keyboard to achieve simple functional
tests, or control and management may be realized with personal
computer. The PC tester has a complete range of test items and the
testing device has such advantages as high measurement accuracy,
high long-term stability, high degree of automation, wide output
range, low distortion, and high stability.
Technical Parameters:
1. Voltage and current measurement range
Output voltage ranges: 57.7V/63.5V and 220V/240V (480V option)
Output current ranges: 0.1A, 1A, 5A, 20A, and 100A
2. Output load capacity
Voltage loop: Max. 50VA
Current loop: Max 100VA (Measurement range 100A)
3.Voltage adjustment
a)Adjustment range: 0%~125% selected voltage range
b)Adjustment fineness: four finenesses as 10%, 1%, 0.1%, and 0.01%
are available
c)Max. output voltage: 300V or 600V
4.Current adjustment
a) Adjustment range: 0%~120% selected current range
b) Adjustment fineness: four finenesses as 10%, 1%, 0.1%, and 0.01%
are available
c) Max. output current: 120A
5. Phase adjustment
a) Adjustment fineness: 0°~359.99°
b) Adjustment fineness: four finenesses as 10°, 1°, 0.1°, and 0.01°
are available
6. Voltage and current output distortion
This device’s voltage and current output distortion will not be
more than 0.5% (testing under linear load)
7. Output power stability
This device’s pre-set output power will not exceed 0.02% compared
with the measurement range variation within 180S.
8. Symmetry of electrical outputs from three phases
The difference between any line or phase voltage and its average
will not be more than 0.2%; the difference between any phase
current and its average will not be more than 0.2%; the phase
difference between any phase current and its corresponding phase
voltage will not be more than 0.2%.
9. Harmonic content
a) Number of harmonic waves: 2~31
b) Harmonic content: less than 40% (compared with fundamental wave)
c) Harmonic phase: 0°~359.99°
10. Monitoring instrument
To be read directly from the standard meter.
11. Electric pulse
Electric pulse output from standard meter:
1) For error calculator to calculate the error of any meter to be
tested;
2) For the reference of upper-level measurement examination and
determination agency when sending the standard meter to them for
testing. Please refer to standard meter’s Table of Constants for
pulse constants.
12. Power supply
Single-phase AC 220V/240V (100V/110V is also applicable), 50/60Hz,
max. input power consumption: 500W.
