Relay Tester/Secondary Circuit Tester

LQMG7000 Power Quality Analyzer | Three-Phase Harmonic & Unbalance Testing

Professional LQMG7000 power quality analyzer detects harmonics, voltage fluctuations, and three-phase unbalance with 18-month data logging and vector analysis capabilities.

US$1.00; Negotiated Price
Lead time: 30days

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LQMG7000 Portable Three-Phase Power Quality Analyzer

Comprehensive Grid Performance Monitoring Solution

The LQMG7000 delivers laboratory-grade analysis of harmonics (up to 50th order), voltage fluctuations, and three-phase unbalance in a rugged portable package. With 18-month continuous data logging and real-time vector diagrams, it's ideal for identifying power quality issues in industrial plants, renewable energy systems, and utility networks.

Product parametersProduct Parameters

Technical parameter

Input characteristic	Voltage measurement range: 20V ~ 800V, automatic shift
	Current measurement range: Clamp transformer (three kinds) : 5A/25A (standard); 100A/500A (optional); 400A/2000A (optional);1000A/5000A (optional) flexible coil
	Phase Angle measurement range: 0 ~ 359.99°
	Frequency measurement range: 45 ~ 55Hz
	Number of voltage channels: three channels (UA, UB, UC)
	Number of current channels: three channels (IA, IB, IC)
	Maximum harmonic analysis times: 63 times
	1-minute interval Maximum continuous storage period: 18 months
accuracy	Electrical parameter measurement part	Voltage: ±0.1%
		Frequency: ±0.01Hz
		Current, power: ±0.5%
		Phase: ±0.2°
	Power quality component	Allowable error of fundamental voltage ≤ 0.5% F.S.
		Allowable error of fundamental current: ≤ 1% F.S.
		Measurement error of phase difference between fundamental voltage and current: ≤0.2°
		Measurement error of harmonic voltage content: ≤ 0.1%
		Measurement error of harmonic current content: ≤ 0.2%
		Three-phase voltage unbalance error: ≤ 0.2%
		Voltage deviation error: ≤ 0.2%
		Voltage variation error: ≤ 0.2%
Operating temperature	－10℃～ +40℃
Charging power source	AC220V, frequency: 45Hz ~ 55Hz
Host power consumption	≤3VA
Maximum battery working time	≤10 hours
insulation	The insulation resistance of the input end of the voltage and current to the housing is less than or equal to 100MΩ
	The working power input side is subjected to a power frequency of 1.5kV (effective value) between the shell, which lasts for 1 minute
volume	258mm × 158mm × 58mm
weight	1.5kg