10-vd4 36kv manual eng

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  • 1Instruction manual VD4BA 442/01 E Vacuum circuit-breaker

    on withdrawable part36 kV, 3150 A, ... 31.5 kA40.5 kV, 3150 A, ... 31.5 kA

    ABB Calor Emag Schaltanlagen AG

  • 2

  • 3Your safety first always!

    Only install switchgear and/or switchboards in enclosed rooms suitable forelectrical equipment.

    Ensure that installation, operation and maintenance are carried out byspecialist electricians only.

    Comply in full with the legally recognized standards (DIN VDE / IEC), theconnection conditions of the local electrical utility and the applicable safetyat work regulations.

    Observe the relevant information in the instruction manual for all actionsinvolving switchgear and switchboards.

    Danger!

    Pay special attention to the hazard notes in the instruction manual marked withthis warning symbol.

    Make sure that under operation condition of the switchgear or switchboardthe specified data are not exceeded.

    Keep the instruction manual accessible to all persons concerned withinstallation, operation and maintenance.

    The users personnel are to act responsibly in all matters affecting safety atwork and the correct handling of the switchgear.

    If you have any further questions on this instruction manual, the members of ourfield organization will be pleased to provide the required information.

    That's why our instruction manual begins with these recommendations:

    WARNUNGAnerkannte Regeln der Technik und Betriebsanleitungen

    beachten !

    Gefhrliche Spannung kann elektrischen Schock und Verbrennungen verursachen.

    Vor Aufnahme von Arbeiten jeder Art dieses Gert unbedingt freischalten,erden und kurzschlieen.

    WARNINGAlways observe the instruction manual and follow the rules

    of good engineering practice !

    Hazardous voltage can cause electrical shock and burns.

    Disconnect power, then earth and short-circuit before proceedingwith any work on this equipment.

  • 4Contents Page

    1 Summary 5

    1.1 General 5

    1.2 Standards and specifications 5

    1.2.1 Switchgear manufacture 5

    1.2.2 Installation and operation 5

    1.3 Operating conditions 5

    1.3.1 Normal operating conditions 5

    1.3.2 Special operating conditions 5

    2 Technical data 6

    2.1 Technical data 6circuit-breakers

    2.2 Technical data 8releases and blocking magnet

    2.3 Technical data 8motor-operated mechanisms

    2.4 Permissible number of vacuum 8interrupter switching operations inrelation to breaking current

    2.5 Dimensions 8

    3 Structure and function 10

    3.1 Structure of the breaker poles 10

    3.2 Structure of the breaker operating 10mechanism

    3.2.1 Releases, blocking magnet 10and auxiliary switches

    3.3 Function 11

    3.3.1 Charging of the spring energy store 11

    3.3.2 Closing procedure 11

    3.3.3 Opening procedure 11

    3.3.4 Autoreclosing sequence 11

    3.3.5 Quenching principle of the 11vacuum interrupter

    4 Despatch and storage 14

    4.1 Condition on delivery 14

    4.2 Packaging 14

    4.3 Transport 14

    4.4 Delivery 14

    4.5 Intermediate storage 14

    Contents Page

    5 Installation 16

    6 Commissioning/Operation 16

    6.1 Note on safety at work 16

    6.2 Preparatory activities 16

    6.3 Operation of the circuit-breaker 17

    6.3.1 Charging the spring energy store 17

    6.3.2 Closing and opening 17

    6.3.3 Operating sequence 18

    6.3.4 Run-on block 18

    7 Maintenance 21

    7.1 General 21

    7.2 Inspection and functional testing 21

    7.2.1 Switching devices in general 21

    7.2.2 Stored-energy spring mechanism 21

    7.2.3 Checking auxiliary switch settings 21on withdrawable part

    7.2.4 Testing of interlock conditions 22

    7.2.5 Breaker pole 22

    7.3 Servicing 23

    7.3.1 Switching devices in general 23

    7.3.2 Stored-energy spring mechanism 23

    7.3.3 Breaker pole 23

    7.4 Repair 24

    7.4.1 Replacement of circuit-breaker parts 24and accessories

    7.4.2 Replacement of the isolating 24contact systems

    7.4.3 Touch up of surfaces 24

    7.5 Spare parts and auxiliary materials 24

    7.5.1 Spare parts 24

    7.5.2 Auxiliary materials 25

    8 Application of the 30X-ray regulations

    We reserve all rights to this publication. Misuse, particularly including duplication and making available of this manual or extracts to third parties is prohibited. The information supplied is without liability. Subject to alteration.

    ABB Calor Emag Schaltanlagen AG, 1998

  • 51 Summary

    1.1 General

    The vacuum circuit-breakers of type VD4 on with-drawable parts for 36 kV or 40.5 kV rated voltageare intended for indoor installation in air-insulatedswitchgear systems. Their switching capacity issufficient to handle any conditions arising fromswitching of equipment and system componentsunder normal operating and fault conditions,particularly short-circuits, within the parameters oftheir technical data.

    Vacuum circuit-breakers have particular ad-vantages for use in networks where there is a highswitching frequency in the working current rangeand/or where a certain number of short-circuitbreaking operations are expected. Type VD4vacuum circuit-breakers are suitable for auto-reclosing, and have exceptionally high operatingreliability and long life.

    The vacuum circuit-breakers designed in columnform, are supplied as withdrawable modules. Theirbasic structure is shown in figures 3/1 and 3/2.

    1.2 Standards and specifications

    1.2.1 Switchgear manufacture

    The switchgear complies with the followingspecifications in accordance with DIN VDE and therelevant IEC publications respectively:

    DIN VDE 0670, part 1000/IEC 60694.

    1.2.2 Installation and operation

    The relevant specifications are to be taken intoaccount during installation and operation, particu-larly:

    DIN VDE 0101, erection of power installationswith rated voltages over 1 kV

    DIN VDE 0105, operation of power installations

    DIN VDE 0141, earthing systems for powerinstallations with rated voltages over 1 kV

    Accident prevention regulations issued by theappropriate professional bodies or comparableorganisations.

    In Germany, these comprise the following safetyregulations:

    Health and Safety at Work Standard VBG 1

    Health and Safety at Work Standard VBG 4

    Safety guidelines for auxiliary and operatingmaterials

    Order related details provided byABB Calor Emag Schaltanlagen AG.

    1.3 Operating conditions

    1.3.1 Normal operating conditions

    Design to DIN VDE 0670, part 1000, "AC switch-gear for voltages above 1 kV"/IEC publication60694, with the following limit values:

    Ambient temperature:

    Maximum:

    Rated current 1250 A + 55 C

    Rated current 1600 A + 40 C

    Rated current 2000 A + 40 C

    Rated current 2000 A(ventilation) + 55 C

    Rated current 2500 A(ventilation) + 40 C

    Rated current 2500 A(forced cooling) + 55 C

    Rated current 3150 A(forced cooling) + 40 C

    Minimum (according to"minus 5 indoor class") 5 C

    Humidity:

    Highest mean value measuredover 24 hours 95 %

    Highest mean value measuredover 1 month 90 %

    Maximum site altitude:

    1000 m above sea level.

    1.3.2 Special operating conditions

    Special operating conditions are to be agreed onby the manufacturer and user. The manufacturermust be consulted in advance about each specialoperating condition:

    Site altitude over 1000 m:

    Allow for the reduction in the dielectricstrength of the air.

    Increased ambient temperature:

    Current carrying capacity is reduced.

    Provide additional ventilation for heatdissipation.

    Climate:

    Avoid the risk of corrosion or other damagein areas:

    with high humidity and/or

    with major rapid temperature fluctuations.

    Implement preventive measures (e.g. electricheaters) to preclude condensation pheno-mena.

  • 62 Technical data

    2.1 Technical datacircuit-breakers

    Rated voltage kV 36 40.5

    Rated frequency Hz 50/60 50/60

    Rated lightning impulse withstand voltage kV 170 200Rated power frequency withstand voltage kV 70 80

    Rate of rise of transient recovery voltage kV/s 0.57 0.69Peak of transient recovery voltage kV 62 70

    Rated operating sequence O-3min-CO-3min-CORated operating sequence with autoreclosing O-0.3s-CO-3min-CO

    Guideline values for function times:Closing time approx. 65 ms

    Opening time 45 msArcing time (at 50 Hz) 15 msTotal opening time 60 msMinimum command time on closing 20 ms 2) 120 ms 3)

    Minimum command time on opening 20 ms 2) 80 ms 3)1) When the operating voltage is lower than the rated voltage, the same values apply as for rated voltage.

    Higher values on request.2) At the rated auxiliary voltage.3) If the activating relay contact cannot itself interrupt the release coil current.

    Breaker Rated Rated Rated Short-circuit Rated Rated Pole Weighttype voltage current short-circuit breaking short-circuit short- centres

    breaking current making circuitcurrent asymmet- current durationsymmetrical1) rical1) (peak)1)

    VD4 kV A kA kA kA s mm ca. kg

    3612-25 36 1250 25 27.3 63 3 280 2903616-25 1600 2903620-25 2000 3403625-25 2500 3403631-25 3150 350

    3612-31 36 1250 31.5 34.3 80 3 280 2903616-31 1600 2903620-31 2000 3403625-31 2500 3403631-31 3150 350

    4012-25 40.5 1250 25 27.3 63 3 280 2904016-25 1600 2904020-25 2000 3404025-25 2500 3404031-25 3150 3504012-31 40.5 1250 31.5 34.3 80 3 280 2904016-31 1600 2904020-31 2000 3404025-31 2500 3404031-31 3150 350

  • 7Rated current of the circuit-breaker according to ambient temperature

    Circuit- A Ambient Ambient Without