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NR5240 series wireless secondary pressure drop load tester

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Product patent

Product description

Product Introduction

Main Feature

　　◆ Distributed wireless synchronous measurement of volt-ampere phase and other electrical parameters, wireless synchronous measurement of six-channel voltage amplitude and phase, single-phase or three-phase measurement of secondary voltage drop, automatic calculation of ratio difference and angle difference;

　　◆ It can be used as a secondary load online tester and three-phase volt-ampere phase meter when used alone;

　　◆ No need for GPS, avoid prolonged search for stars due to weather and tall buildings;

　　◆ There is no need to pull a temporary cable between the watt-hour meter side and the PT end to avoid the PT secondary short circuit caused by cable insulation or operation problems;

　　◆ Use wireless as the communication method to avoid the pollution of the carrier communication method to the secondary measurement loop and affect the accuracy of electric energy measurement;

　　◆ Wireless repeater can be used to solve the problem of basement and well-shielded indoor wireless communication;

　　◆ Current amplitude and phase measurement can be as small as 1mA. It is very suitable for substation main transformer on-load test and new station or small load station current measurement;

　　◆ Industrial grade working temperature range: -20 ~ 50℃.

Technical Parameters

Types of	Measuring range	unit	error	Resolution
Comparison	0.001~99.9	%	DX=±（X×1% +Y×1 %±0.02%）	0.001
Angle difference	0.01~999.9	σ	DY=±（X×1% +Y×1%±0.5分）	0.01
PT secondary admittance	1.00 ~ 99.9	mS	±1%±0.02mS	0.01
CT secondary impedance	0.1 ~ 50	Ω	1%+ 2 words	0.01
Voltage	5 ~ 600V	V	0.5% x reading +5 words	0.1V
Current	0.001 ~ 6A(Scalable)	A	0.5% x reading +5 words	0.0001A