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Siemens 8BK30 Operation And Maintenance Instructions

8bk30 3.6-12kv type 8bk30 switchgear up to 12kv with draw-out vacuum contactors, air-insulated metal-enclosed, metal-clad
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1. 8BK30
Fig.1 8BK30 switchpanel (double panel)
Operation and Maintenance
Instructions
8BK30 3.6-12kV
/
(F-C
)
Type 8BK30 Switchgear up to 12kV with Draw-Out Vacuum Contactors,
Air-insulated Metal-Enclosed, Metal-Clad.
Answers for IC.

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Summary of Contents for Siemens 8BK30

  • Page 1 1. 8BK30 Fig.1 8BK30 switchpanel (double panel) Operation and Maintenance Instructions 8BK30 3.6-12kV (F-C Type 8BK30 Switchgear up to 12kV with Draw-Out Vacuum Contactors, Air-insulated Metal-Enclosed, Metal-Clad. Answers for IC.
  • Page 2 • Other loads with high switching frequency • e.g. arc furnaces or capacitors. • Withdrawable vacuum-contactor boards are thus used in 8BK30 factories, refineries, drilling platforms, power stations, etc. 1.1.1 Characteristic features of the switchpanel • Rated voltage up to 12kV. 1.1.1 •...

  • Page 3: Constrution

    • Operational reliability/maintenance • – Complete interlocking system – – Maintenance-free vacuum HV contactors – – Door included in the interlocking system – • Environmental protection • – High pollution protection level by metal-enclosed design for all operating status – –...
  • Page 4 Description Special control circuit • • Reversing operation (2 panels) • • Reversing operation by main contactor (3 panels) • • Reduced-voltage starting (3 panels) • • Pole-changing motor (4 panels) • • Dahlander circuit with one direction of rotation (3 panels) •...
  • Page 5 1. Vacuum contactor 2. Contact arm 3. Mounting plate 4. HV fuse 5. Striker of HV fuse 6. Surge limiter Fig.5 Withdrawable part with vacuum contactor HV terminal • Accessible from the rear • • Terminal links with mounting screws for cables •...

  • Page 6: Mode Of Operation

    Description 1.3 Mode of operation 3.1.2 The positions of the withdrawable unit are described in Section 3.1.2 Interlocks Actual state function of interlocks Withdrawable unit/vacuum contactor Vacuum contactor When the hand crank of closed in the the withdrawable unit service/disconnected/ is turned the vacuum test position contactor is opened...
  • Page 7 Climate classes 11,12,13. The climate classes are based in IEC publication 72-3-3 and 11,12,13 Siemens standard SN 29070 part 1 and are defined as follows. IEC 72-3-3 SN 29070 -Climate class 11...
  • Page 8 2 Power frequency withstand voltage according to IEC standard 1775 8BK20 8BK30 8BK20 3) When switchgear 8BK30 is aligned together with 8BK20 whose depth is 1775mm, an additional panel is attached to 8BK30 in order to keep the same dimension...
  • Page 9 Protection against electric shock and against ingress of solid foreign bodies (door of HV compartment closed) IP4X DIN VDE 0670/ Panel Degree of protection IEC298 IP40 Basic IP4X according to DIN VDE 0670/ 40 050/IEC529 Version IEC298 or IP40 according to IP41 IP50 IP51 DIN/...

  • Page 10: Table Of Contents

    Installation Installation page Preparatory work ........12 ............. 12 2.1.1 Foundation........... 12 2.1.1 ............12 2.1.2 Installation room .......... 12 2.1.2 ............12 Unloading and installation ......13 ..........13 2.2.1 Transport units ..........13 2.2.1 ............. 13 2.2.2 Packing............13 2.2.3 Unloading.............

  • Page 12: Preparatory Work

    DIN 18 202 installed indoors" and DIN 18 202 "Tolerances in – structural engineering". – For foundations of a seismic design consult Siemens – Switchgear Ltd., Shanghai. – Level differences between the mounting surfaces of the double panels should be determined and compensated for by reference to a dimension drawing(Fig.7).

  • Page 13: Unloading And Installation

    2.2 Unloading and installation 2.2.1 Transport units 2.2.1 The transport units consist of up to three double panels which are assembled including the busbars and the associated withdrawable units. In transport units consisting of one double panel the busbar and branch busbar are packed separately in the busbar compartment and fixed on the partition plate to the 2.2.2 cable termination compartment.

  • Page 14: Checking For Damage In Transit

    Installation 2.2.4 2.2.4 Checking for damage in transit Immediately after unloading and unpacking check the switchgear for completeness and damage. Record any damage and its cause without delay and in the presence of the forwarding agent if the damage was caused in transit. The record is essential if claims for damages should be raised.

  • Page 15: Assembling Installation Of Switchpanels

    – – In the latter case roll the units to their installation site. If this means changing the direction of travel, lift the units and relocate the roller pads accordingly observing the floor cutouts. When the site of installation has been reached, lift the transport units by four winches and remove the roller pads.

  • Page 16: Fixing The Switchpanels To The Foundations

    Installation Screw off the bolts Move up transport unit2 in the arrow direction and align Tranport unit1 , aligned Fig.9 Panel bolting Screw in the bolts here • • At the joint of the transport units to be bolted together, pass the fixing bolts through the frame of the left-hand panel (viewed to operating front) and through the partition and screw them into the frame of the...

  • Page 17: Busbar Installation

    2.2.6.3 2.2.6.3 Busbar installation The busbars of adjacent transport units must be connected to the busbar connectors (1,Fig.11) using the parts and fixing elements supplied with the units. Grease the contact faces. M12 bolts must be tightened with a torque of 70 Nm and 70Nm 40Nm M12 bolts with a torque of 40 Nm.

  • Page 18: Connecting The Lv Cables

    Installation 2.3.3 2.3.3 Connecting the LV cables Remove the vertical covers f the cable duct on front left in the withdrawable unit compartment from the side/partition wall. For this purpose remove the fixing bolts (Fig.12). Run the LV cables on the left-hand side of each panel, enter the cable into the LV cubicle and connect it there.

  • Page 19: Final Installation Work

    2.4 Final installation work 2.4.1 Checking the HV connections 2.4.1 Check all the HV cables connected for • Tightness of bolts using a torque wrench. • Earthing of cable sealing end. • • Core spacing on three -core cables and for correct fitting •...

  • Page 20: Power-Frequency Withstand Voltage Test On Site

    Operation • 3.2.3 • Close and open the earthing switch several times. Operation must only be possible as described under 3.2.3. • Move the withdrawable unit into the service position. • • Close and open the vacuum-contactor as long as no HV voltage has been applied.

  • Page 21: Status Of Main Equipments

    3.1 Status of main equipments 3.1.1 Status of main equipments after putting into service 3.1.1 Door of withdrawable unit compartment Closed Door of LV cubicle Closed Withdrawable unit Service position Vacuum contactor Closed Earthing switch Open 3.1.2 Positions of withdrawable unit Service position The vacuum contactor is connected to the busbar and to 3.1.2...
  • Page 22 Operation Fig.14 Operating elements Door of LV compartment Door of HV compartment “off” pushbutton “On” pushbutton Inspection window for the switch position indicators of HV HRC fuse: “O”(green) “blown” “I”(red) “operational” Opening for inserting the hand crank Hand crank for moving the withdrawable unit Unlocking knob for Item 6 Lock of door to LV compartment 10 Lock of HV door...

  • Page 23: Vacuum Contactor

    3.2.2 3.2.2 Vacuum contactor Close and open the vacuum contactor by push buttons. Closing and opening is also possible from a switchgear control room or control station. 3.2.3 Earthing switch 3.2.3 Earthing switches are equipped with manually operated mechanisms. The operating lever can only be inserted or withdrawn with the switches set to the end positions.

  • Page 24: Operation With Hv Door Open

    Operation 3.4 Operation with HV door open Open HV the door as described under 3.3.1 3.3.1 3.4.1 Withdrawable unit (Fig.17) 3.4.1 3.4.1.1 Disconnecting the LV connector • Disconnect the LV connector (1) from the connector base 3.4.1.1 on the withdrawable unit. For this purpose swing clip 2 •...

  • Page 25: Connecting The Lv Connector

    3.4.1.4 3.4.1.4 Connecting the LV connector • Insert the LV connector into the connector base on the • withdrawable unit and lock it by means of the clip. • 3.3.1 • Close the door to the withdrawable unit compartment as described under 3.3.1 3.4.2 3.4.2 Replacing the fuses...

  • Page 26: Maintenance

    Maintenance Maintenance Selte Maintenance.............26 ..............26 4.1.1 Maintenance Item ..........26 4.1.1 ............26 4.1.2 Inspection schedule..........26 4.1.2 ............26 4.1.3 Cleaning ............26 4.1.3 ............26 4.1.4 Lubrication............27 4.1.4 ..............27 Repair work............27 ..............27 4.2.1 Outwitting the door interlock in emergencies ..27 4.2.1 ......
  • Page 27 Items such as post insulators, bushings, contacts, measuring instruments, current tranfermers, etc. can be replaced by 4.2.3 new ones. If replacement is likely to prove difficult, ask Siemens Switchgear Ltd., Shanghai in good time for a fitter to be assigned.
  • Page 28 华北区 潍坊 南京 海口 兰州 山东省潍坊市四平路 31 号山东将军 南京市中山路 228 号地铁大厦 17 层 海南省海口市滨海大道 69 号 甘肃省兰州市东岗西路 589 号 北京 鸢飞大酒店有限公司 1507 房间 邮编： 210008 宝华海景大酒店８层 803 房 锦江阳光酒店 2206 室 北京市朝阳区望京中环南路 7 号 邮编： 261041 电话： (025) 8456 0550 邮编：...

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