1- Main Applications:
The system is easy to assemble for partial discharge measurement and voltage withstand test for GIS and XLPE cables under voltage grade of 252kV.
2. Operating Conditions:
- Altitude: <1000m
- Ambient Temperature: -25°C +50°C
- Max. Daily Temp. Difference: 25°C
- Relative Humidity: ≤95%(20°C)
- Max. Wind Speed: 25m/s
- Without conductive dust at site
- Without fire and blasting risks at site
- Without rusting metals and insulated gas at site
- Waveform of power supply voltage is sine actual; and it's aberration ratio is <5%
- Set a reliable earthing point at site
- Installation: Indoor
3- Main Equipment List
List of Main Equipment for the First Phase:
1. Filter of Power Supply
LSF-200/3*240 Three Phase Filter 01 pc
(The selected capacity is enable to cover the requirement after the system upgrade)
LDF-200/2*500 Single Phase Filter 01 pc
(The selected capacity is enable to cover the requirement after the system upgrade)
2,HVF-200 Frequency Conversion Source 01 pc
(The selected capacity is enable to cover the requirement after the system upgrade)
3.YDK-2350/2*235 HV Reactor 02 pcs
(The first phase construction will obtain 470kV high voltage output through the connection in serise of 2 reactors of 235kV each, and its current can be go up to 5A; and with the parallel connection current of 10A. The margin for the second phase construction is kept in this design, that the upgrade can be obtained 705kV / 5A, and with the parallel connection current of 30A.)
4.TRF705-0.001 Capacitive Divider 01 pc
(The first phase construction will meet the capacity of 2 reactors of 235kV each, and the the connection in serise to 470kV. The margin for second phase construction for the upgrade to 705kV is kept.)
5.GL705-5-0.04 HV Current-limiting Reactor 01 pc
(The equipment is enable to cover the requirement after the system upgrade)
6.YDW-200/2*20 Excitor 01 pc
(The selected capacity is enable to cover the requirement after the system upgrade)
frequency conversion series-wound Resonant Testing System