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Installation and service manual

Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o.

ONIII

Outdoor disconnector 40kA

Manual No DTR.01.11.01.EN

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Содержание ONIII

Страница 1: ...Installation and service manual Zakład Wytwórczy Aparatów Elektrycznych Sp z o o ONIII Outdoor disconnector 40kA Manual No DTR 01 11 01 EN ...

Страница 2: ...ailure to follow the warning instructions can result in serious personal injury or material damage Only suitably qualified personnel can work on or near the de vice 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: ...NT 8 3 1 Preparing contact surfaces 8 3 2 Poles adjustment 8 3 3 Disassembly of the transport lock 9 3 4 Operating mechanism assembly 10 3 5 Pole coupling and adjustment 10 3 6 Earthing switches coupling 13 3 7 Earthing switches operating regulation 14 3 8 Grounding of the base frames 15 4 OPERATING MANUAL 15 4 1 Notes about connecting activities 15 5 INSPECTIONS AND MAINTENANCE 16 5 1 Visual insp...

Страница 4: ...ng trans port and the data on the nameplate match the order 1 2 Storage and transport Disconnector poles are transported in assembled condition During the unloading and assembly process the disconnector poles should be lifted using transport belts placed in the manner shown in the following graphic During transport disconnector poles are placed on wooden beams which should be removed immediately b...

Страница 5: ... can be transported by means of transport with open cargo area On flat hard 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 an open space but poles should be put so that the base does not stand directly on the ground psc ...

Страница 6: ...th an individual operating mechanism or in three pole set with one common operating mechanism Disconnector poles can be set in parallel or in serial connection Disconnector visual drawing in parallel configuration is shown below 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 Current path Base frame R...

Страница 7: ...5 Short circuit current 3 sec 31 5 kA 31 5 kA 6 Test voltage 50 Hz for insulation to earth and between phases between contacts of one pole 140 kV 160 kV 230 kV 265 kV 7 Surge test voltage for insulation to earth and between phases between contacts of one pole 325 kV 375 kV 550 kV 630 kV 8 Radio interference voltage 1000 µV 1000 µV 9 Rated mechanical operating life 2000 cycles 2000 cycles 10 Dedica...

Страница 8: ...r from the contact surface with a wire brush After this treatment the surface should be matt gray devoid of shiny areas Clearly remove shavings and aluminum dust from the surface for example by lubricating with acid free grease and then removing it After this treatment the surface should be greased with acid free grease to protect it from oxidation of aluminum The prepared surface should not be ex...

Страница 9: ...move the transport blockade from the poles attached to the supporting structure To remove the blockage unscrew the M10 screw in the disconnector base frame and the M12 screw in the drive lever has to be unscrewed After removing the blockade the M12 screw must be crewed back in the same place ...

Страница 10: ...he figure below Tightening torque M12 80 Nm M16 100 Nm 3 5 Pole coupling and adjustment After setting the poles on the supporting structure check the end positions of the current paths and if neces sary correct the position of the bumpers and the lengths of the shafts of the disconnector kinematic system After checking the correctness of operation of the poles the coupling rods can be assembled Op...

Страница 11: ...que of M16 screws 100 Nm Poles coupling regulation consists of such a setting of the length of the tie rod and coupling lever location ad justment so that the current paths at each pole reach the limit positions according to the following requirements Coupling tie rod ...

Страница 12: ...e 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 dive lever while maintaining the same length of tie rod After changing the position of the lever it is necessary to correct the of the tie rod and check limit positions of the current path c Afte...

Страница 13: ...hing switches have to be coupled using coupling shafts which length is presented in the table below Right earthing switch shaft Left earthing switch shaft Type Application Coupling shaft left earthing switch Coupling shaft right earthing switch ONIII 72 A 735 A 795 ONIII 123 A 1335 A 1395 ...

Страница 14: ...with requirements presented in the drawing below and earthing circuit closing occur simultaneously On one of earthing switches coupling rods there should be placed earthing switch blockade in order to enable earthing work only with open disconnector Figure blow shows the way of fitting the blockade Contacts points of contacts location In lower end position the earthing blade s ending cannot be loc...

Страница 15: ...the earthing switch knife with the base The arrangement of connections is shown in the next figure 4 OPERATING MANUAL Disconnector s switching is achieved by using an appropriate motor or manual operating mechanisms 4 1 Notes about connecting activities a While disconnector s or its earthing switch s manueovering all safety at work rules applicable in installa tion s location should be respected b...

Страница 16: ...ternal regulations in force in the distribution centre do not oblige to more frequent main tenance inspections are required in accordance with the following schedule Periodic inspection after 5 years of operation or after 1000 operation cycles General inspection of earthing switch s contacts During inspection and maintenance the applicable regulations for the operation of energy devices and the re...

Страница 17: ...ctory test report of the finished product should be taken as the criterion for assessing the correct operation of the disconnector In the case the disconnector is connected to the busbar system the voltage drop should not be exceeded 250 µΩ 4 When assessing the condition of insulators it is necessary to check if there are no losses or damage to the insula tors with particular emphasis on the surfa...

Страница 18: ...e com pl Zakład Wytwórczy Aparatów Elektrycznych Sp z o o 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 applicable regulations it is possible to return a worn out complete disconnector t...

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