Three Phase Watt Hour Meter Portable Check Device TD4550
Product Overview
TD4550 is a special for the verification of three-phase AC watt-hour meter, power meter portable instrument, its built-in three-phase standard source, with 0.02/0.05/0.1 level of three specifications optional. The basic electric energy error detection, watt-hour meter constant test, standard deviation, starting test, latent test and so on can be completed by using one equipment. Reference criteria: GB/T 11150-2001,JJG 597-2005,JJG 307-2006,JJG 596-2012, etc.
Functional Characteristics
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At full load, the maximum output of the three-phase standard source V /120A,456 can guarantee the stability of the output value.
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Current output minimum to 2 mA, is the basis for starting test of the tested energy meter.
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Value adjustment has rotary encoder, bit adjustment, step ratio and other ways, can be three-phase adjustment or phase adjustment.
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Phasor diagram shows: arbitrarily adjust the phase between three-phase electricity, and through the form of phasor diagram visual display.
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Man-machine function: equipped with large-scale LCD touch color screen, visual value display, convenient operation.
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Harmonic function (optional): can load 2~21 times, amplitude / phase adjustable harmonics, harmonic impact test.
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Professional software (optional): support semi-automatic, automatic verification; data management, certificate export.
Main Application (0.05 level)
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Calibration or verification of a three-phase active power watt-hour meter S 0.2 and below, a three-phase reactive power meter of 0.5 and below
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Verification or calibration of a three-phase active power meter S 0.2 and below, a three-phase reactive power meter of 0.5 and below
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Verification or calibration of three-phase AC voltmeters, ammeters, frequency meters, power factor meters, etc. of Class 0.2 and below
Technical Specifications
Three-phase voltage output
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Three-phase voltage output range :6 V ~456 V, distortion :<0.5 per cent
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Degree of symmetry: voltage over 0.2%, phase over 0.5°
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Protection function: voltage short circuit protection, overload protection
Three-phase current output
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Three-phase current output range :2 mA ~120 A, distortion :<0.5
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Symmetry: current is better than ±0.5, phase is better than ±0.5°
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Protection function: current open circuit protection, overload protection
Frequency/phase/harmonics
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Frequency range :45.000 Hz~65.000 Hz
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Regulation fineness :0.001 Hz; annual measurement uncertainty (k=2):±0.01 Hz
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Phase adjustment range :0.000°~°359.999
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Regulation fineness :0.005°; annual measurement uncertainty (k=2):±0.1°
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Harmonic (optional):2~21; amplitude 0~25, phase 0.0°~359.9° adjustable
Power/power measurement
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Power/electricity measurement range: combination of AC voltage range and AC current range
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Power factor measurement range :-1.000 00…0.000 00…1.000 00
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Standard power pulse output: high frequency full range value corresponds to 60 kHz, low frequency full range value corresponds to 6 Hz
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Standard power pulse input: frequency ≤150 kHz, voltage :0.3.3 V…24V
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Power Error Display: Automatic, Resolution 0.0001%
General Technical Specifications
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Power supply: AC (220±22) V,(50AC (220±2) Hz
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Working environment :0℃~40℃,20~80% not exposed
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Storage environment :-20℃~70℃,<80% not exposed
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Size :490 mm (W)×485 mm (D)×200(H)
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Equipment quality: approximately kg 29.0
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Communication interface: RS232
Get in Touch
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