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.