8BK86 -12
8BK86 -12
Metal-Clad Withdrawable Switchgear
7.2~12kV,...4000A,...63kA8BK86-12
8BK86(KYN18-12) 50Hz 7.2~12kV
IEC-298 GB3906 DL404
8BK86(KYN18-12) metal-clad Withdrawable switchgear is suitable for 3-phase AC 50Hz, 7.
2~12kV single busbar and single busbar section system. Apply to distribute electricity power and
implement system control, protection and supervision monitoring. The switchgear complies with the
standards IEC298, GB3906, DL404.1
Type and Designation
2
Operating Conditions
3
Characteristic
4
Technical Data
5
Construction
6
Main Components
7
Primary Schemes
8
Installation
9
Ordering Information1
Type and Designation
8BK86(KYN18 -12) /
Metal-clad Primary scheme No.
Withdrawable Rated voltage
Indoor No. of Design
2
Operating Conditions
13
Characteristic
Safety for use
All switching operations take place with high-voltage
compartment doors closed.
Electrical switch positon indication on panel fornt for cir-
cuit-breaker, earthing switch and truck position.
Logical interlocks prevent maloperation.
Positively driven shutters protect against accidental con-
IP4X tact with live parts.
Standard degree of protection IP4X against electric
shock and ingress of solid foreign bodies.
Interlock
Operating levers can only be inserted when the inter-
locking conditions are fulfilled. In this way, undue stress
on the interlock mechanisms is avoided.
The following operations can only take place when the
stated interlock conditions are fulfilled:
Move the withdrawable part from the test position to the
service position:
High-voltage compartment door closed
VCB or VC in the OPEN position
(Make-proof) earthing switch in the OPEN position
Move the withdrawable part from the service position to
the test position:
VCB or VC in the OPEN position
Operate the VCB or VC:
Withdrawable part have been locked in the test position
or the service position.
Operate the (make-proof) earthing switch:
Withdrawable part have been locked in the test position.
Cable compartment door closed
Opening the high-voltage compartment door
Withdrawble part have been locked in the test position
8BK86-12
24
Technical Data
Technical Data of VCB Cubicle
Unit Data
Rated voltage kV 7.2~12
ated power-frequency withstand voltage (1min) kV 32/42
Rated lightening impulse withstand voltage kV 60/75
Rated frequency Hz 50/60
Main busbar rated current A ...4000*
Branchal Busbar rated current A ...4000*
Rated short-time withstand current (rms), 3s kA ...63
Rated peak withstand current (peak) kA ...160
Operation voltage V AC/DC110, 220
Enclosure protection level IP4X
Overall dimensions W H D mm 800/1000 x 2200 x 1800**
2500A Enforced cooling when current is over 2500A.
4000A 1900mm The switchgear depth is 1900mm for 4000A.
F-C Technical Data of F-C Cubicle
Unit Data
Rated voltage kV 7.2~12
1min Rated power-frequency withstand voltage (1min) kV 20/28
Rated lightening impulse withstand voltage kV 60/75
Rated frequency Hz 50
Main busbar rated current A ...4000
Main circuit rated current A ...400
Rated short-time withstand current (rms), 4s kA 4
Rated peak withstand current (peak) kA 10
Anticipate short-circuit breaking current kA 50
Anticipate short-circuit making current kA 125
Operation voltage V AC/DC110, 220
Enclosure protection level IP4X

8BK86-12是一種特定型號的金屬鎧裝移開式開關設備，它屬于高壓電器設備中的一種。"8BK86"可能是該產(chǎn)品系列或制造商的代碼，"12"則通常表示該開關設備的額定電流，即最大通過電流為1200安培（A）或者12kA，具體含義會依據(jù)產(chǎn)品的詳細技術參數(shù)來確定。 這種開關設備具有金屬鎧裝結構，可以提供良好的防護性能，確保內(nèi)部電器元件免受外部環(huán)境的影響和機械損壞，適用于工業(yè)、電力系統(tǒng)中對安全性和可靠性要求較高的場合，如變配電所、發(fā)電廠等，常用于斷路器、隔離開關、接地開關等高壓開關設備中，實現(xiàn)電路的接通、分斷、隔離以及保護等功能。