Transformer Testing Instrument

LQHV-342 Dielectric Loss Tester | Frequency Conversion Anti-Interference Technology

Advanced LQHV-342 dielectric loss tester features frequency conversion technology for precise tan δ measurements in high-interference environments, with 200% interference rejection capability.

US$1.00; Negotiated Price
Lead time: 30days

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Product Details

Product Tags

LQHV-342 Transformer Dielectric Loss Tester

Ultimate Anti-Interference Insulation Analysis

The LQHV-342 combines frequency conversion technology and Fourier digital filtering to deliver laboratory-grade precision in field conditions, capable of accurate measurements even with 200% interference.

Product Parameters

Technical parameters

accuracy	Cx	± (Reading ×1%+1pF)
	tgδ	± (Reading x 1%+0.00040)
Anti-interference index	Frequency conversion anti-interference, the above accuracy can still be achieved under 200% interference
Capacitance range	Internal high pressure	3pF～60000pF/10kV 60pF～1μF/0.5kV
	External high pressure application	3pF～1.5μF/10kV 60pF～30μF/0.5kV
	Resolution	Up to 0.001pF, 4 significant digits
tgδ delta range	Unlimited, resolution 0.001%, capacitance, inductance, resistance three kinds of test automatic recognition
Test current range	10μA～5A
Internal high pressure	Set voltage range	0.5～10kV
	Maximum output current	200mA
	Elevating pressure system	Continuous smooth regulation
	Voltage accuracy	±(1.5% x reading +10V)
	Voltage resolution	1V
Test frequency	45~65Hz integer frequency, 49/51Hz, 45/55Hz automatic double frequency conversion
	Frequency accuracy：±0.01Hz
External high pressure application	Maximum test current during normal wiring5A/40~70Hz
	Maximum test current during reverse wiring 10kV/5A/40~70Hz
CVT self-excited low voltage output	Output voltage 3 ~ 50V, output current 3 ~ 30A
Measuring time	About 30s, depending on the measurement method
Input Power	Input power supply
Computer interface	Standard RS232 interface
printer	Comes with micro thermal printer
Ambient temperature	-10℃～50℃
Relative humidity	<90%, no condensation
Selection of main technical indicators
Capacitance rangepF	3~60k
Maximum output currentmA	200/10kV
Overall dimensions Length x width x height cm	34x26x27cm³
weight kg	22kg
High voltage dielectric loss	support
CVT self-excitation measurement	No external equipment is requiredC₁/C₂High voltage cable can be milled at the same time
Loop discharge warning	There are
printer	thermosensitive
Computer interface and storage	RS232 stores 100 groups