Three Phases High Precision Reference Standard Energy Meter

Three Phases High Precision Reference Standard Energy Meter

Model No.︰JWT5303A

Brand Name︰JWTRONIC

Country of Origin︰China

Unit Price︰-

Minimum Order︰-

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Product Description

JWT5303 three-phase standard watt-hour meter is a kind of multi-function high-accuracy intelligent watt-hour measurement instrument which is designed with most advanced digital electronic technology end uses high-speed DSP processor, as its core technology. It comprises of high-speed DSP processor, two-way current frequency converter, digital controller, and digital display. Its voltage and current inputs are separated by passive transformer, so it is a kind of watt- hour measurement instrument with wide current measurement range, two-way current measurement capability, high accuracy, good stability, high overloading capacity, and strong practicability.
Technical Parameters
 
 
 
 
 
Input parameters
 
 
Voltage input
Input voltage(V)
40-480
Input voltage range(v)
60、120、240、480
Overloading capacity(v)
600
Input load
≤0.5mA(480v)
 
 
Current input
Input voltage(a)
0.01-100
Input voltage(a)
100,50,25,10,5,2.5,1,0.5,、0.25,0.1,0.05,0.025
Overloading capacity(a)
150
Input load
≤0.3mΩ(100A-20A≤6mAΩ(10A-0.01A)
Output pulse frequency
fH=CH.p/3600(Hz) fL=fH/10000(Hz)
Output signal: TTL signal
Power consumption:15VA
Pre-heating time:30Min
accuracy
accuracy
Grade 0.02,0.03,0.05,0.1
 
Power accuracy
Active power accuracy
0.05%、0.1%(pf≥0.5)
Reactive power accuracy
0.1%、0.2%(pf≥0.5)
Watt-hour accuracy
Active watt-hour accuracy
0.05%、0.1%(pf≥0.5)
Reactive watt-hour accuracy
0.1%、0.2%(pf≥0.5)
 
 
Displayed contents
Three-phase/ four-line voltage (Uan,Ubn,Ucn)
Three-phase/three-line voltage(Uab,Ubc,Uca)
three-phase current (la,lb,lc(A)) ,Active power(p(w))/apparent power(s(va)) Power factor(p1)/phase angle(¢),Input signal frequency(f)
Power supply
220v±10%、50Hz±5%
Relative humidity
≤85%No corrosive gasses exist
Outer dimensions
482mm×420mm×140mm
Operating environment : Temperature5-40 
Total weight :About 9kg