1 Wiring duct, low-voltage compartment
- Metallic wiring duct (option) on the switchgear for panel-overlapping secondary wiring
- Alternatively, low-voltage compartments (option) in different heights of 200 mm, 400 mm, 600 mm,
or 900 mm for customer-specific secondary equipment
2 Busbar extension, modularity
- Busbar extension as an ordering option
- Plug-in unit consisting of contact coupling and screened silicone coupling
- Insensitive to pollution and condensation
- 8DJH-Switchgear installation, extension, or panel replacement without gas work
3 Indicators
- Voltage detecting systems, short-circuit / earth-fault indicators and transformer monitors from various manu facturers
4 Ring-main feeder
- Switching functions as general-purpose switch-disconnector according to IEC 62271-103 and IEC 62271-102
- Designed as a three-position switch incorporating the functions of a switch-disconnector and a make-proof earthing switch
- Switch positions: CLOSED – OPEN – EARTHED
- Manual operating mechanism, optionally motor operating mechanism
5 Transformer feeder
- High-voltage switch-fuse combination according to IEC 62271-105
- Designed as a three-position switch
- 8DJH-Switch positions: CLOSED – OPEN – EARTHED
- Manual operating mechanism, optionally motor operating mechanism
- Mechanical “fuse tripped” indicator at the switchgear front
6 HV HRC fuse assembly
- Fuse boxes, 1-pole, below the switchgear vessel
- Fuse slide for easy replacement of HV HRC fuses without tools
- HV HRC fuse-links according to DIN 43625 (main dimensions) with striker in “medium” version according to IEC 60282-1, for short-circuit protection of transformers
7 SiBushing
- Outside-cone bushing type C with integrated sensors for current, voltage, and temperature measuring (option)
8 Cable compartment
- Bushings according to DIN EN 50181 with outside cone and bolted connection M16 as interface type C (standard in cable, ring-main, and circuit-breaker feeders) or with outside cone and plug-in contact as interface type A (standard in transformer feeders)
- Adjustable cable bracket with C-rail, optionally with plastic cable clamps pre-assembled at the factory
Connection of:
- Cable elbow plugs or cable T-plugs
- Thermoplastic-insulated cables (1- and 3-core cables)
- Ring-core current transformers according to IEC 61869-1 and -2, around the cables
- Current sensors according to IEC 61869-10, around the cable plugs or around the cables
- Voltage sensors (resistor divider) according to IEC 61869-11, mounted on the cable plugs
9 Enclosure
- Hermetically tight, welded switchgear vessel made of stainless steel
- Enclosure made of sendzimir-galvanized sheet steel, switchgear front powder-coated
10 Dimension options
- 8DJH Switchgear height 1400 mm (optionally 1040 mm, 1200 mm or 1700 mm)
- Deep cable compartment cover
11 Pressure relief
- Pressure relief downwards
- For further pressure relief versions, see page 34
- Up to IAC A FL 21 kA/ 1 s or IAC A FLR 21 kA/ 1 s
