Electronic Portable Three-phase Energy Meter Test Bench

Electronic Portable Three-phase Energy Meter Test Bench

portable and smart,3 meter positions,fine shape, delicate workmanship, complete functions and excellent performance?

1.??Summary

???? ?three-phase energy meter portable test bench is a kind of

????? Second generation? program? controlled three-phase energy? meter? test

????? device developed in? accordance? with? relevant? national? standards and

????? regulations and combined with comments and suggestion of our users and

????? experts. It is applicable for testing of three-phase energy meters(including

????? positive sine reactive meters) of level 0.2 and below. Featured by fine shape,

????? delicate workmanship, complete functions and excellent performance, it is

????? an ideal choice for you.

2.??Main characteristics and functions

2.1?? The functions of the keys on the special ?keyboard are

????? clearly identified and the LCD on the special keyboard displays the testing

????? equipment working condition.

2.2?? During energy meter testing, what needs to do manually is to put up the

????? meters to be tested, adjust the photoelectric sampler and setup the meter

????? parameters correctly, then all testing items including warming up, creeping

????? test,? starting? test? and? basic? error? measurement? can? be? completed

????? automatically? by? PC. The testing? procedure can? refer? to the national

????? procedure or can be self-defined by the user.

2.3?? The photoelectric sampler can realize three-dimensional adjustment. It can

????? not only sample the turn-plate signal of the rotary energy meter but also

????? receive the strobe signal of the electronic energy meter.

2.4?? The? error? processing system can? receive signal from? the photoelectric

????? sampler and output pulse of the insert type electronic energy meter.

2.5?? Energy meters of same type (same phase, rated voltage and rated current)

????? but different constant can be tested Simultaneously (only limited to three

????? different constants)

2.6?? Locating of marking area of the? rotary energy meter turn-plate can? be

????? realized automatically, which enables easier creeping (starting) test.

2.7 ??The testing equipment is of high stability and reliability, which can provide

strong output power. Voltage (current) loop can take load of any type.

2.8 ??The testing equipment is provided with complete malfunction checking,

?????? locating, protecting and alarming functions to avoid damaging of the bench

?????? resulted from wrong manual wiring or operating.

?2.9? PC? software developed with Delphi for? Windows? 95? provides? fast? and

?????? effective equipment control and data checking, it also provides complete

?????? functions, such as report printing, quantity counting and assets maintaining

3.???Main technical index and technical performance

?3.1?? Accuracy level:? level 0.1

?3.2?? Output voltage:? 3*100V/57.7VY????? 3*100VΔ

? ??????????????????????3*380V/220VY?????? 3*380VΔ

?????? Regulating scope: 0-120% consecutively adjustable

?????? Regulating fineness: better than 0.01%

????* Special voltage range can be setup according to user order???? .

?3.3?? Current range: 0.1A, 0.25A, 0.5A, 1A, 2.5A, 5A, 10A, 20A, 50A, 100A

?????? Regulating scope: 0-120% consecutively adjustable

?????? Regulating fineness: better than 0.01%

?3.4?? Output power;(voltage loop)?? 3* 50VA

????????? ??????????(current loop) ??3* 100VA

3.5??? Stability of output voltage, current and power:

???? ???≤0.05%/120S????? PF=1 (level O.1type)

3.6??? Wave distortion of output voltage and current: ≤0.5%

3.7??? Symmetry of three phase : better than 120o?+0.3o

3.8??? Frequency range: 45Hz ~ 65Hz????? regulating fineness: 0.01 Hz

3.9? ??Phase shifting range: -180.0o?~ 180.0?o?regulating fineness: 0.01

3.10?? Indicating instruments class

?????? Voltmeter and ammeter accuracy: level?+0.2%

?????? Phase meter accuracy:?+?0.1

?????? Cymometer accuracy:?+0.1Hz

3.11? ?Maximum meters for test: 3

3.12?? Power supply: 220+10%~50Hz ( or user order? )

3.13?? Maximum power consumption: 350VA

3.14?? Working environment: temperature; 20+5°C (5 ~50°C)?

?relative humidity: ≤90%

3.15??