Technical Information; General; Features; Electrical Data (Max. Values) - Siemens 8BT2 Installation And Operating Instructions Manual

2.

TECHNICAL INFORMATION

2.1.

General

2.1.1.

Features

2.1.2.

Electrical data (max. values)

Rated voltage
Rated power frequency withstand voltage (1 min.)
Rated lightning impulse withstand voltage
Rated frequency
Rated short circuit breaking current
Rated short circuit making current
Rated peak withstand current
Rated short time withstand current
Rated duration of short circuit
Rated current of the busbar
Rated current of feeders
Rated current of bus-sectionalizing panels
2.1.3.

Dimensions of panels and the switchgear room

Panel type 8BT2
Circuit breaker panel
Busriser and Sectionalizing panels
Disconnector panel
Busbar connection panel
Metering panel
Circuit breaker panel
Busriser and Sectionalizing panels
Disconnector panel
Busbar connection panel
Metering panel
881-4027.9 * INSTALLATION AND OPERATING INSTRUCTIONS 8BT2 * Revision 04
Air insulated 8BT2 36/70/170kV switchgear with the truck type circuit breaker has the
following features:
• Factory-assembled, type-tested, metal-enclosed and metal-clad switchgear for indoor
installation according to IEC 62271-200 / VDE 0671-200
• Loss of service continuity category LSC 2B (or LSC 2A as an option)
• Partition class PM by means of earthed, metallic shutters and partitions
• Internal arc classification: IAC A FLR, Isc
• All switching operations can be performed with high-voltage door closed
• Standard degree of protection IP4X for the metal enclosure according to IEC 60529 / VDE
0470 Part 1
• Metallic, positively driven shutters protect against accidental contact with the live parts
inside the panel
• Logical interlocks between actuation, circuit breaker, disconnecting function and earthing
switch operating mechanism prevent mal-operation
• Feeder / busbar earthing by means of earthing switches with short-circuit making capacity.
• Mechanical position indicators for the withdrawable part and the earthing switch integrated
in the mimic diagram at the panel front
• Position of the switching device truck visible through window in the high-voltage door.
• High flexibility due to various combinations of the basic panel types
• Wall-standing or free-standing arrangement
• Power cable connection from front for wall standing version and from front/rear for free
standing version
• Designed as truck-type switchgear (circuit breaker)
• Panel-internal control cables routed in metallic wiring ducts or steel spiral tubes
• Cable testing without de-energizing the main busbars possible by using the lower shutter
opening tool
• Extension of existing switchgear at both ends without modification of panels
• Use of block-type current transformers
• Type tested closed duct version
• Option: Verification of safe isolation from supply with high-voltage door closed by means of a
voltage detecting system according to IEC 61243-5
Rated current
[A]
3150
3150
31.5kA, t=1s arc duration
[kV] 36
U r
[kV] 80
U d
U p [Hz] 170
f r [kA] 50/60
I sc [kA] 31.5
[kA] 82
I ma
I p [kA] 82
[s] 31.5
I k
t k [A]
[A] 3150
I r
[A] 3150
I r
I r [A] 3150
Panel width
replacement [mm]
1200
2400
wall-
standing
1200
2400
free-
standing
1200
* "Wall-standing"&"with closed relief duct"
3
height with arc
depth height
channel at top
[mm] [mm]
2450
2700*
2400
2700
[mm]
2900
7