Cable and line Testing Instrument

LQHV-505 Damped Oscillation Wave System | Cable Diagnostic Testing per DL/T 1576 & IEC 60270

Industry-compliant (DL/T 1576, IEC 60270) damped AC wave system for non-destructive cable testing. Features 30kV output, cloud data upload, and semiconductor/laser hybrid technology.

US$1.00; Negotiated Price
Lead time: 30days

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Product Details

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LQHV-505 Damped Oscillation Wave State Detection System

Next-Gen Cable Condition Assessment

This field-deployable diagnostic system combines Damped AC Voltage (DAC) testing with partial discharge detection to evaluate cable insulation integrity without damaging operational cables. Certified to DL/T 1576 and IEC 60270 standards.

Product Parameters

Main technical index

Item	Technical index
Power supply	220VAC±10%, 50Hz
Maximum output voltage (peak)	30kV
Oscillation frequency range	20Hz ~ 500Hz
Test cable length range	200m ~ 20km
High voltage charging current	8mA
High voltage switch	Trigger mode: Laser triggers high voltage switch
High voltage switch characteristic	Conduction time: 1μs
	Switching resistance: less than 1Ω
	Optical fiber communication
Measuring range of local discharge	1pC ~ 100nC
Local discharge level detection and bandwidth	In line with the International Electrotechnical Commission IEC60270 standard
Office release location bandwidth	150kHz ~ 45MHz automatic adjustment
Local discharge positioning measurement accuracy	Cable length 1% (minimum resolution 2m)
Dielectric loss measurement range	0.1% ~ 10%
Real-time sampling rate of office release	100MHz
Local sampling storage depth	32MB (can record 300ms data length)
Control mode	Wireless control, wired control
Local discharge calibration mode	Automatic/manual
Damping oscillatory wave realization	Automatic voltage boost, automatic generation of damped oscillation wave voltage

Main functions of system software

Software information recording interface	(1)	Record the time and date
	(2)	Basic information of registered users: test personnel
	(3)	Basic information of the test cable: including the name of the test cable station, cable model, length, joint, operation history, etc
Software main function	(1)	All Chinese operation interface
	(2)	Support one-key compression, automatic calibration, one-key analysis
	(3)	Convenient and intuitive setting of voltage amplitude, control automatic boost and oscillation wave generation
	(4)	Multi-terminal WEB browsing cloud test data function (network support required)
	(5)	Automatic synchronization of basic data parameters (network support required)
	(6)	Automatic display of oscillating wave voltage amplitude, oscillation frequency and sampling time width
	(7)	Automatic display of dielectric loss value
	(8)	Automatic display of maximum volume
	(9)	Store oscillating waveform and local release waveform
	(10)	The local release waveform can be amplified on site for initial positioning of the local release source point
	(11)	Automatic or manual analysis of detection data automatically generate office release location map, automatically generate statistical reports
	(12)	Automatic generation of office release statistical maps, such as Q-φ chart, N-φ chart, etc