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td3650 verification apparatus of three-phase meters (meeting oiml r46 requirement of new type meter)

全面满足 oiml r46 指令而设计的三相电能表检定装置

准确度为 0.01 级 / 0.02 级 / 0.05 级可选

电压 / 电流基波输出 45 hz ~ 2 khz,谐波:2 ~  64 次 @ ( 45 hz ~  65 hz )

交流最大输出为 576 v / 120 a,在满负荷条件下能保证量值输出的稳定

交流电流输出最小低至 0.1 ma,是被检电能表进行起动试验的基础


td3650 is a set of apparatus specially applied to the verification of three-phase meters and designed to meet oiml r46 instructions. it is composed of standard three-phase ac power source, reference meter, multi-station verification workbench (built-in meter hanger, terminal knob, pulse input and output module, control module, display module, communication interface, anti-static table, etc) , computer, proprietary software and so on. the accuracy is 0.01/0.02/0.05/0.1 optional. it has a fundamental frequency output of up to 2 khz(20khz bandwidth), a wide current dynamic output range of 0.1 ma to 120 a and a waveform generator of square wave, spike wave, dc even harmonic (half wave), sub-harmonic and odd harmonic. users can also customize various waveforms to meet the needs of measuring and calibrating various harmonic power and electrical energy.

the apparatus is based on the stable output of ac power source. standard reference meter independently developed by tianheng is adopted as the accuracy assurance. combined with proprietary software, it can simultaneously have verification on 3-16 three-phase meters with the same voltage and current range, different constant and different error limit. the items include basic error test, start-up test, latent test, meter constant, daily timing error, time interval switching, harmonic test and so on.


● the maximum ac output capacity is 264 v/120 a, which can ensure the stability of output value at full load.

● the minimum ac current output to 0.1 ma, which is the basis for start-up test of the verified meter.

● output fundamental wave of voltage/current:45 hz~2 khz, harmonic order: 2nd to 64th @ (45 hz to 65 hz).

● the apparatus has positive and reverse active electrical energy, four quadrant reactive power and other metering methods.

● multi-station verification workbench: the verification workbench is equipped with ac voltage / current output terminals, photoelectric pulse and communication interface to meet various kinds of testing requirements. and the control panel is built in so the operator can observe and control the output value by its lcd touch screen, which facilitates manual verification.

● proprietary software: semi-automatic and full-automatic verification is realized, so as data management and certificate export.


technical specifications

ac voltage/current output


output characteristics:

● range of voltage: 0 v~576v, burden capacity:15 va for each station

● range of current: 0.1 ma~120 a, burden capacity:20 va for each station

● resolution: 0.002%*rg,

● display: 6 digits

● protection: short-circuit protection, open-circuit protection, overload protection 

frequency, phase and harmonic

 range of frequency: 45.000 hz~65.000 hz

   resolution: 0.001 hz

   accuracy: ± 0.01 hz

● range of phase: 0.000°~359.999°

   resolution: 0.005°

   accuracy: ± 0.05°

● output of complex waveforms: square wave, sharp tip wave, dc / even harmonics, subharmonics and odd harmonics can be generated. users can also customize harmonics of  

   various amplitude and phase. 

stability of output power 


accuracy of reference meter 


measurement characteristics:

● ac power range: combination of ac voltage range and current range

● output of standard electrical energy pulse (high frequency): full scale value corresponds to 60 khz.

   output of standard electrical energy pulse(low frequency): full scale value corresponds to 6 hz.

   frequency jitter of output pulse: < 10 μs

● input of standard electrical energy pulse: high frequency pulse less than or equal to 150khz with the amplitude of 3.3v~24v can be received.

● the electrical energy error is automatically displayed with the resolution of 0.0001%.

general specifications

● line power: ac ( 220 ± 22 ) v,( 50 ± 2 ) hz

● operating environment: 0 ℃~40 ℃,20%~80% r·h,non-condensing

● storage environment: -20 ℃~70 ℃,< 80% r·h,non-condensing

● dimensions(width*depth*height): 2800 mm × 750 mm × 1500 mm (12 stations workbench )

 standard interface: rs232 

selection guidance


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