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FLN36 Indoor AC SF6 Load Break Switch

FL(R)N36 Indoor AC High Voltage SF6 Load Break Switch and LBS-Fuse Combination are used for the three-phase AC 50/60Hz RMU and terminal power station. The switches are suitable for protecting the 10kV, 24kV and 35kV power system's on load situation. The switch can switch off the on load current, closed loop current, no load transformer capacity and cable charging current. The switch with fuse combination can cut off any current, when the current is in the range of the rated short-circuit breaking current. They are suitable for the RMU, combined transformer, etc..

parameters

Technical Information

Technical Specification
Rated voltage	kV	12	24	40.5
Rated current	A	630	630	630
Rated power frequency	Hz	50/60	50/60	50/60
Short circuit making capacity	kA Peak.	62.5	50	50
Peak withstand current	kA Peak.	62.5	50	50
Short time current	kA eff.
1Sec.		25
2Sec.			20	20
Max. breaking capacity in co-operation with fuses IEC 62271-105 (IEC 420 1990-11)	A	1530	920	630
Mainly active load breaking capacity	A	630	630	630
Cable charging current	A	630	630	630
Power frequency withstand voltage 50Hz 1 min,:
- To earth and between poles	kV	42	55	95
- Across isolating distance	kV	45	70	120
Impulse withstand voltage 1.2/50μ s:
- To earth and between poles	kV	75	125	190
- Across isolating distance	kV	85	145	220
Mechanism Endurance	cycles	1000	1000	1000

Overall and installation dimensions

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Product Center

FLN36 Indoor AC SF6 Load Break Switch