HVHIPOT HV-OWS-31 On-Site Oscillating Wave Test System for 11kV Cable

Product Description

General Information

HV-OWS-31 Oscillating Wave Test System (OWTS) for On-site PD Diagnostics of 10kV Cables is an integrated partial discharge location and management system. Test frequency varies from 50Hz to hundreds of Hertz under damping AC voltage.
It simulates the running state of the cable by applying voltage, and can induce partial discharge and detect its intensity and location. It uses a hollow inductor in series with the tested cable, and charges its series circuit through a high-voltage DC source. When the charging voltage reaches a preset value, it closes the electronic switches connected in parallel at both ends of the power source, thereby forming a damping oscillation circuit, generating an oscillating voltage, and this oscillating voltage is used to excite the partial discharge at the insulation defect of the cable, and the quality of the cable insulation can be judged by detecting the partial discharge.


Features
 

HV-OWS series is an integrated partial discharge test system, mainly used for partial discharge diagnosis of medium voltage cables. The system test frequency is 50Hz to several hundreds of Hz damping AC voltage, the damping AC voltage generated by the system during the test process can reach 60kV, and it is combined with advanced system hardware and system software for diagnosis.
 

The latest power electronic semiconductor technology

The latest laser control technology

Advanced digital signal processor and filtering technology

Advanced wireless network control technology.
 

2. The measurement and analysis software can perform remote data analysis under the condition of a network.
3. Full English operation interface, capable of recording oscillating voltage waveforms and partial discharge signal waveforms, and making real-time dots during the pressurization process;
4. Automatically display the frequency, amplitude and sampling time width of the oscillating voltage waveform.
5. It can automatically analyze the waveform expansion of the tested partial discharge signal.
6. Automatically display the dielectric loss test value.
7. Automatically generate a partial discharge location map and generate statistical reports, and automatically generate a partial discharge statistical map.



Specification
 

Output voltage	Maximum: ±30kVpeak
Oscillation frequency range	20Hz~850Hz
Inductance	1.0H~2.1H (optional)
Data analysis	Manual analysis, automatic analysis (analog and digital filtering)
Capacitance range to be measured	0.05~5uF
High voltage charging current	10mA
Partial discharge test range	10pC~200nC
Measurement accuracy	±0.1pC (sampling 14bits)
Wave speed	50-300m/us
Locating accuracy	±0.1m
Locating error	≤1%×cable length
PD level detection	According to IEC60270
PD locating bandwidth	100kHZ~50MHZ automatic or manual selection
Dielectric loss value tan δ	0.1%~10%
Supply voltage	180V~250V, AC 50Hz
Operating temperature	-120ºC~ + 60ºC
Weight	About 50kg
Size	Diameter 600mm, height 600mm
Interface	WLAN (IEEE802.11g)/100M Ethernet card