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INSTALLATION AND SERVICE MANUAL

Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o.

ONIII

Horizontal centre-break disconnector

Manual No DTR.01.02.07.EN

Содержание ONIII

Страница 1: ...INSTALLATION AND SERVICE MANUAL Zakład Wytwórczy Aparatów Elektrycznych Sp z o o ONIII Horizontal centre break disconnector Manual No DTR 01 02 07 EN ...

Страница 2: ...Failure to follow the warning instructions can result in serious personal injury or material damage Only suitably qualified personnel can work on or near the device This personnel must know exactly all safety rules and rules for maintaining the device in accordance with these instructions The problem free and safe operation of this device requires proper transport proper storage construction and a...

Страница 3: ...eparing contact surfaces 9 3 2 Poles installation 10 3 3 Disassembly of the transportation blockade 11 3 4 Operating mechanism installation 12 3 5 Pole coupling and adjustment 13 3 6 Earthing switches coupling 16 3 7 Earthing switches operating regulation 17 3 8 Grounding of the base frames 18 4 OPERATING MANUAL 19 4 1 Notes about connecting activities 19 5 INSPECTIONS AND MAINTENANCE 19 5 1 Visua...

Страница 4: ... Storage and transport Disconnector poles are transported in assembled condition ONIII 72 ONIII 123 ONIII 145 ONIII 172 or partially assembled condition ONIII 245 ONIII 363 During unloading and installation process the discon nector poles should be lifted using transport belts placed in the manner shown in the following graphics During transport disconnector poles are placed on wooden beams which ...

Страница 5: ...transported by means of transport with open cargo area On flat hard even surfaces it is allowed to move the disconnector s poles with a pallet truck in the manner shown below with particular care to prevent the pole from tipping over Disconnector poles can be stored in the open area but poles should be set so that the base frame does not stand directly on the ground 8x70 4 pcs ...

Страница 6: ...s up to 60 Hz inclusive The disconnector can be used as a single pole switch with an individual operating mechanism or in three pole set with one common operating mechanism Disconnector s poles can be set in parallel or in serial connection Disconnector s sketch in parallel configuration is shown below Current path Base frame Rotating base Earthing switches coupling mechanism Poles coupling mechan...

Страница 7: ...ad Wytwórczy Aparatów Elektrycznych Sp z o o 7 2 2 Climatic conditions The disconnector is designed for outdoor operation at ambient temperature from 50 to 40 C and relative humidity up to 100 2 3 Nameplate ...

Страница 8: ...een phases between contacts of one pole 140 kV 160 kV 230 kV 265 kV 275 kV 315 kV 300 kV 315 kV 460 kV 530 kV 560 kV 750 kV 6 Surge test voltage for insulation to earth and between phases between contacts of one pole 325 kV 375 kV 550 kV 630 kV 650 kV 750 kV 650 kV 790 kV 1050 kV 1200 kV 1175 kV 1450 kV 7 Radio interference voltage 1000 µV 1000 µV 1000 µV 1000 µV 100 µV 250 µV 8 Rated mechanical o...

Страница 9: ...s is described below aluminium aluminium connection the oxide layer from the contact surface should be removed by using a wire brush After this treatment the sur face should be matt gray devoid of shiny areas Any chips and aluminum dust should be thoroughly removed from the surface eg by lubricating with acid free grease and then removing it After this treatment the surface should be greased with ...

Страница 10: ...kład Wytwórczy Aparatów Elektrycznych Sp z o o 10 3 2 Poles installation The disconnector poles should be placed on the supporting structure which has mounting holes in accordan ce with the drawing below ...

Страница 11: ...ckades should be removed from the poles attached to the supporting structure To remove the transportation blockade the M10 screw in the disconnector base frame and the M12 screw in the drive lever have to be unscrewed After removing the lock the M12 screw must be screwed back in the same place Transportation blockade ...

Страница 12: ... under crank gear located in discon nector s base frame After the operating mechanism is suspended a drive shaft which connects operating mechanism to the crank gear should be mounted The assembly method is shown in the figure below Crank gear Coupling shaft Operating mechanism s supporting structure Operating mechanism Tightening torque M12 80 Nm M16 100 Nm ...

Страница 13: ...he current paths and if necessary correct the position of the bumpers and the lengths of the coupling tie rods of the discon nector s kinematic system After checking the correctness of operation of the poles the coupling rods can be assembled Tightening torque of M16 screws 100 Nm Current path position adjustment screws Current path rotation angle limit bumper Coupling tie rod ...

Страница 14: ...re limit positions If tie rod length change forecloses achievement of the limit positions driving lever position should be changed on driving pole The next figure presents the behavior of the disconnector s poles when changing the position of the drive lever while maintening the same length of tie rod After changing the position of the lever it is necessary to correct the length of the tie rod and...

Страница 15: ...Zakład Wytwórczy Aparatów Elektrycznych Sp z o o 15 Regulation lever Left position Regulation lever Right position Regulation lever Neutral position ...

Страница 16: ...e below Left earthing switch shaft Right earthing switch shaft Type Application Disconnector s and earthing switches driving shaft Coupling shaft left earthing switch Coupling shaft right earthing switch ONIII 72 A 615 A 700 A 765 ONIII 123 A 615 A 1300 A 1360 ONIII 145 A 615 A 1500 A 1560 ONIII 172 A 615 A 1500 A 1560 ONIII 245 A 750 A 2777 A 2855 ONIII 363 A 750 A 4277 A 4355 ...

Страница 17: ...ion lies in such setting of coupling shafts that earthing knives on each pole should achieve limit positions in accordance with requirements presented in the drawing below and earthing circuit closing occur simultaneously On earthing switches coupling shaft should be set earthing switch s locking in order to enable earthing switch to work only with open disconnector Figure below shows way of fit t...

Страница 18: ...ation apparatus base frames have to be grounded Earthing terminals are marked on disconnector s base frame In case of grounding of disconnector with built up ear thing switch an earthing wire should be connected as close as possible to line linking earthing switch knife with base frame Terminals location is presented in figure below ...

Страница 19: ... the bushings rails incoming supplies short cables and power lines capacities with current and voltage parameters specified in technical data 5 INSPECTIONS AND MAINTENANCE 5 1 Visual inspections It is recommended to carry out visual inspections in accordance with rules being in force in switchgear or after each failure or short circuit Check in particular a condition of current path s central cont...

Страница 20: ...ic contacts earthings contacts of HV switches b LUBRICANT for bearings for example LT4 or similar used for lubricating ball joints 6 UTILIZATION The ONIII disconnectors are made of materials that are recyclable The main materials from which the disconnectors are built are steel hot dip galvanized aluminum copper The disconnectors do not contain any dangerous substances In accordance with applicabl...

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