ZWAE MARK40 Installation And Service Manual
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ZWAE MARK40 Installation And Service Manual

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Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o.
Installation and Service Manual
MARK40
Vertical disconnector 123, 245 i 420 kV
Manual No. DTR.01.04.04.EN

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  • Page 1 Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. Installation and Service Manual MARK40 Vertical disconnector 123, 245 i 420 kV Manual No. DTR.01.04.04.EN...
  • Page 2 This personnel must know exactly all safety rules and rules for maintaining the device in accordance with this instruction. The problem-free and safe operation of this device requires proper transport, proper storage, construction and assembly as well as careful service and maintenance. zwae.com.pl...

  • Page 3: Table Of Contents

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. Table of contents 1. TRANSPORT ........5 1.1.
  • Page 4 Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 3.9. Assembling of the operating mechanism ....19 3.10. Assembling of the driving shaft..... . 19 3.11.

  • Page 5: Transport

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 1. TRANSPORT 1.1. Unpacking and inspection Immediately after receiving the disconnector, the delivery’s compliance with the packing list should be chec- ked. Then one should check whether the disconnector has not been mechanically damaged during transport and the data on the nameplate match the order.
  • Page 6 Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 8x140 (4 pcs) During unloading, the disconnector’s poles should be lifted with a forklift, as shown in the following graphics.

  • Page 7: Description

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. During transportation, the poles must be secured against tipping over and the disconnector knife should be closed. Disconnector can be transported by means of transport with open cargo area. Disconnectors poles can be stored in an open space, but poles should be set so that the base frame does not stand directly on the ground.
  • Page 8 Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. Details of the Mark-40 disconnector’s pole construction are illustrated in the next drawing. Each pole possess an individual base frame [1] equipped with two fixed feet [2] and a rotating foot [3] on which porcelain insulators [4] are mounted.

  • Page 9: Climatic Conditions

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 2.2. Climatic conditions The disconnector is adapted for outdoor operation, at ambient temperature from -40 to +40 ° C and relative humidity up to 100%. 2.3. Nameplate DISCONNECTING SWITCH Rated voltage rated continuous current Lightning impulse withstand voltage rated short-circuit withstand current (1sec.) weight...

  • Page 10: Basic Technical Parameters

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 2.4. Basic technical parameters Parameter Value Rated operating voltage 123 [kV] 245 [kV] 420 [kV] 2500 [A] 2500 [A] 2500 [A] 3150 [A] 3150 [A] 3150 [A] Rated continuous current 4000 [A] 4000 [A 4000 [A] Peak current 125 [kA]...

  • Page 11: Installation And Adjustment

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 3. INSTALLATION AND ADJUSTMENT The disconnector is delivered partially assembled, as shown in the following figure. The assembly is limited to: a) assembling and leveling the base frame on the supporting structure, b) assembling and setting of insulators, c) assembling of movable contact head and fixed contact head, d) assembling of corona rings, e) assembling and coupling of the operating mechanism with disconnector,...

  • Page 12: Assembling Of The Base Frame

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. • copper – silver connection The copper surfaces should be cleaned of oxides by using a brass wire brush and then should be proceeded as for the aluminum surface. Silver-plated surfaces do not need to be cleaned with a brush, but they can be cleaned with a delicate abrasive material, eg steel wool.

  • Page 13: Assembling Of The Insulators

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 3.3. Assembling of the insulators Insulators are recommended to be screwed when they are on the ground and then mounted on the disconnector’s base frame using a crane. Used elements: supporting insulator - 2 pcs. supporting insulator - 2 pcs.
  • Page 14 Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. The adjustment is made with the use of adjustment washers allowing for proper adjustment of deviation of insu- lators. This method is presented on the next two drawings. After setting the plane of insulators, one should set the distance of the driving insulator.
  • Page 15 Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. This adjustment is made using the tool shown in the following drawings. The tool should be mounted on the fixed insulator [2]. By rotating the driving insulator [1], one should determine potential deviations from the axis indica- ted by the tool.

  • Page 16: Assembling Of The Movable Contact Head

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 3.4. Assembling of the movable contact head After the insulators are properly adjusted, the mova- ble contact head is mounted [1]. Used elements: - screw M16x40 - 4 pcs. - washer 17 - 4 pcs. - spring washer 16 - 4 pcs.

  • Page 17: Assembling Of The Corona Ring Of The Knife

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. Used elements: - screw M16x40 - 8 pcs. - washer 17 - 8 pcs. - spring washer 16 - 8 pcs. 3.6. Assembling of the corona ring of the knife Used elements: - screw M6x20 - 4 pcs. - washer 6,4 - 4 pcs.

  • Page 18: Assembling Of The Corona Rings Of The Movable

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 3.7. Assembling of the corona rings of the movable contact head of the knife Used elements: - screw M12x25 - 4 pcs. - washer 13 - 4 pcs. - spring washer 12 - 4 pcs. 3.8.

  • Page 19: Assembling Of The Operating Mechanism

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 3.9. Assembling of the operating mechanism Used elements: - screw M16x45 - 2 pcs. - washer 17 - 2 pcs. - spring washer 17- 2 pcs. 3.10. Assembling of the driving shaft Used elements: driving socket - 1 pc.

  • Page 20: Assembling Of The Fixed Contact Of The Earthing Switch

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 3.11. Assembling of the fixed contact of the earthing switch The earthing switch type UN-4 is assembled to the disconnector type Mark-40. The assembly of it is taking pla- ce during the assembly of the disconnector. Components and the method of assembling of the fixed contact of the earthing switch is presented in the next drawing.

  • Page 21: Assembling And Adjustment Of The Knife Of The

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. The properly mounted contact of the earthing switch is shown on the next drawing. 3.12. Assembling and adjustment of the knife of the earthing switch. The adjustment is carried out as follows: a) one should assembly the bearing sleeves [1] in the disconnector’s base frame, and then adapt the diameter of the holes to the diameter of the crank (it is allowed to increase the diameter using, for example, a flap wheel on the drill).
  • Page 22 Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. b) one should assembly the body [4] so that it is in the perpendicular position to the base frame of the discon- nector. At the same time, one should set it in the axis with the fixed contact of the earthing switch.

  • Page 23: Earthing Switch

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. c) one should make final adjustment of the coupling tie rod [2] to set the position of tangency. location of points of contact of contacts The next drawing shows how to assembly the knife of the earthing switch.

  • Page 24: Assembling Of The Earthing Cable

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 3.13. Assembling of the earthing cable After assembling of the earthing switch knife, the earthing cable should be connected according to the instruc- tion below. Elements used (the given quantities refer to a sin- gle earthing switch): - screw M20x140 –...

  • Page 25: Table Of Tightening Torque For Screws [Nm]

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 3.14. Table of tightening torque for screws [Nm] Dimension Material Steel 8.8 black steel Steel 8.8 Electrogalvanizing steel Steel 8.8 hot-dip galvanized steel A2-70 Stainless steel do not lubricate lubricate 4. OPERATING MANUAL Disconnector’s switching is achieved through maneuvering an appriopriate manual or motor operating mechanism.

  • Page 26: Inspections And Maintenance

    Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. b) The disconnector connected to work under voltage can be switched only when there is certainty that the breaking or making current will have a negligible value, or that there will be no significant change in voltage between the terminal elements of any pole.

  • Page 27: Utilization

    Zakład Wytwórczy Correspondence address Kębłowo Nowowiejskie, ul. Łąkowa 2 Aparatów Elektrycznych Sp. z o.o. 84-351 Nowa Wieś Lęborska Gdańska 60, 84-300 Lębork POLAND POLAND zwae@zwae.com.pl tel.: +48 59 863 36 15 www.zwae.com.pl...

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