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