Siemens 8BT2 Installation And Operating Instructions Manual page 15

Basic equipment
Basic equipment
Additional equipment • Capacitive voltage taps in the post insulators for capacitive voltage detection
Rated normal feeder current
I r [A]
1250 < .... 2000
2000 < ... 3150
Additional equipment • Block-type current transformers
Basic equipment
881-4027.9 * INSTALLATION AND OPERATING INSTRUCTIONS 8BT2 * Revision 04
A. Switching device compartment
It consists of;
• All switching operations with high voltage door closed
• Pressure relief upwards
• Panel powder coated with epoxy resin
• Metallic, earthed shutters ensure partition class PM
• High voltage door pressure resistant in the event of internal arc in the panel
• Metallic ducts on the side for laying control cables
• Interlocking between high voltage door and the circuit breaker truck ensures interlock
controlled access
• Components; vacuum circuit breaker truck, disconnector truck, metering truck
B. Busbar compartment
• Version with rated normal current 800 A, 1250 A, 2000 A, 2500 A or 3150 A
• Busbars made of bare flat copper, bolted from panel to panel
• Pressure reliefs upwards into the switchgear-room or into the pressure relief duct.
• Busbar voltage transformers
• Make-proof busbar earthing switch
• Transverse busbar partition from panel to panel and busbar insulation
C. Cable compartment
Quantity per phase
1250 2
4
6
For the application of three-core cables, please see the deep bottom pan at the clause-
1)
4.3.9.1.3 on page62.
NOTE!
Please find the detailed information about the cable termination length at clause-4.3.9.1. on
pages55 and 56.
• Block-type voltage transformers
• Surge arresters
• Earthing switch with short-circuit making capacity
• Panel heater
• Sockets for capacitive voltage detecting systems
D. Low voltage compartment
• Completely partitioned off the panel and removable from the panel as a separate unit
• For accommodation of protection, control, measuring and metering equipment
• Plug-in bus wires and control cables
• Standard version with 750 mm height
• Door hinge on the left
Single-core XLPE cables
Conductor cross section
[mm²]
500
500
500
Three-core XLPE cables
Quantity per phase Conductor cross section
2
1)
[mm²]
300
15