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Changchun Urban Railway Phase 1 Project Nanjing Metro Phase 1 Project
Tianjing Urban Railway Line Jinbin Project Beijing Metro Line Batong Project
Wuhan Tramway Phase 1 Project Chongqing Tramway Line jiaoxin Phase 1 ProjectTianjin Metro Line 1 Project Tianjin Trolleybus test line Project
Guangzhuo Metro Line 4 Project Beijing Metro Line 1&2 Retrofit Project
Shanghai Metro Line 8 Project Beijing Metro Line 10 Project1
KMB
KMB Metal-enclosed DC Switchgear
2
MB
MB Metal-enclosed DC Switchgear
3
SECUB
SECUB Metal-enclosed DC Switchgear
4
NPMPD
NPMPD Over Voltage Limiting Device
5
SIK
SIK Prefabricated DC Traction Substation
6
UR & HPB
UR & HPB DC High-speed Circuit-breaker
7
SWS
SWS Disconnector
8
SEPCOS
SEPCOS Control and Protection System
9
MIU10
MIU10 Measuring AmplifierKMB
KMB Metal-enclosed DC Switchgear
1General
KMB metal-enclosed DC switchgear consists of incoming
cubicle (also called positive cubicle), feeder cubicle and
negative cubicle etc.
Incoming Cubicle
The incoming cubicle of the DC substation can be called posi-
tive cubicle, which is used between the rectifier and DC high-
speed breaker. The cubicle consists of DC disconnector or
HSCB, shunt, arrester, measure and control unit.
Feeder Cubicle
Feeder cubicle shall be installed between the positive busbar
and the point for connection of the Overhead Line(OHL). Inside
it, positive busbar, high-speed circuit-breaker and relevant con-
trol and protection components shall be provided.
The feeder cubicle is equipped with trolley type DC high-speed
circuit breaker. The trolley can be easily pulled out or moved in.
The trolley has three significant positions: Connected, Test and
Disconnected.
Feeder cubicles are metal-enclosed withdrawable switchgear.
It can be opened from the front or the rear of the cubicle with
lockable doors, allowing easy maintenance. The cubicle con-
sists of rear compartment, trolley compartment and low-voltage
compartment.
Negative Cubicle
Negative cubicle, which is equipped with motorized or manual
DC disconnector, is made of 2mm bent and reinforced steel
plates. In front and rear of the cubicle, the metal door can be
locked.
A set of a frame leakage protection device can be installed in
the negative cubicle to prevent personnel from injury due to
the flashover of the DC equipment by the damage of its inter-
nal insulation. It is mainly used for ensuring personal safety
and protection of the equipment against some special troubles.
Operation Conditions
Altitude: 2000m;
Temperature: -5 +40
Relative humidity:
Ambient air humidity shall not exceed 50% when the highest tem-
perature is +40 . But when the temperature is low, it allows consid-
erable relative humidity, for example, 90% at +20 ;
Installation condition:
During the installation of the equipment, the gradient shall not ex-
ceed 5 degree, and all of the switchgears shall be arranged orderly;
Installation site:
The switchgear should be installed at the site where are no acutely
strike or shake; in no case the equipment should be exposed to rain
or bad weather conditions.
1.1Main Features
High protection degree and perfect solution.
Integrated trolley with high speed circuit breaker and easy to
maintenance.
Disconnectors or reversing switches are accessible and suit
able for operation from the cubicle front or rear side.
Integrated protection and control system type SEPCOS,
allowing both remote control and remote monitoring from
the traction network control centre.
The control and protection compartment is accessible from
the cubicle front side.
Technical data
KMB06 KMB08 KMB08
Type 26 40 46 60 26 40
(A) 2000-3150 4000-9000 4000-9000 6000-9000 2000-3150 4000-6000
Rated current bus-bar
(A) 2600 4000 4600 6000 2600 4000
Rated current feeder circuit
Ui 1600V/3000V 4800V

這些是電氣行業(yè)中的相關(guān)設(shè)備與組件： 1. KMB 和 MB: KMB 和 MB 可能代表兩種不同型號或系列的金屬封閉式（Metal-Enclosed）直流開關(guān)柜。這類開關(guān)柜通常用于直流電力系統(tǒng)中，提供可靠的高壓直流饋線和母線連接，對直流電路進行開合操作和保護。 2. SECUB 金屬封閉式直流開關(guān)柜: SECUB 是另一種類型的金屬封閉式開關(guān)柜，專門設(shè)計用于直流供電系統(tǒng)，具備較高的安全性和可靠性，能夠隔離和分配直流電源至各個負載或子系統(tǒng)。 3. NPMPD 鋼軌電位限制裝置: NPMPD (Negative Polarity Miniature Protection Device) 是一種安裝在鐵路接觸網(wǎng)系統(tǒng)中的設(shè)備，用于防止接觸軌對車輪形成的危險電壓，確保人員和設(shè)備的安全。 4. SIK 箱式牽引整流變電站: SIK 可能是指一種采用箱式結(jié)構(gòu)的牽引整流變電站，將交流電轉(zhuǎn)換為適合軌道交通車輛使用的直流電，并且集成有冷卻系統(tǒng)和監(jiān)控設(shè)備，實現(xiàn)高效、穩(wěn)定的電力供應(yīng)。 5. UR、HPB 直流快速斷路器: UR 和 HPB 分別代表不同型號或系列的直流快速斷路器，它們能夠在短時間內(nèi)切斷短路電流，保護電力系統(tǒng)的安全穩(wěn)定運行。 6. SWS 隔離開關(guān): SWS 隔離開關(guān)是一種常用于直流和交流配電系統(tǒng)的電器元件，主要用于隔離電源、分合小電流電路以及形成明顯的電氣間隔。 7. SEPCOS 控制和保護系統(tǒng): SEPCOS 是一套由西門子公司提供的直流電力電子控制系統(tǒng)，它集成了控制、保護、監(jiān)測等多種功能，廣泛應(yīng)用于直流輸電、電力儲能等場合，以提高電網(wǎng)運行效率和安全性。 8. MIU10 測量放大器: MIU10 是一款高精度的測量放大器，常用于電力系統(tǒng)中對電流、電壓信號的檢測與處理，可將微弱的信號放大到便于后續(xù)測量和控制設(shè)備讀取的適當范圍。