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Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. INSTALLATION AND SERVICE MANUAL ONIII Horizontal centre-break disconnector Manual No DTR.01.02.07.EN...
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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 assembly as well as careful service and maintenance. zwae.com.pl...
1.2. 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.
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Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 8x70 (4 pcs) During transport, the poles must be secured against tipping over and the central contact should be open. The disconnector can be 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.
2. DESCRIPTION 2.1. Construction and principle of operation Outdoor disconnector type ONIII- ... is an insulating, two-column switch, with rotating and horizontal contacts movement. It is intended to work in networks with voltage corresponding to the rated voltage, at frequencies up to 60 Hz inclusive.
Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 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...
Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 3. INSTALLATION AND ADJUSTMENT The delivered disconnector is completely regulated and ready to work. Installation is reduced to: a) installing poles on a supporting structure, b) attaching supporting constructions for the operating mechanisms, c) installing of operating mechanisms, d) poles coupling and its regulation, e) earthing switches coupling,...
Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 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.
Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 3.3. Disassembly of the transportation blockade Transportation blockades should be removed from the poles attached to the supporting structure. Transportation blockade 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.
Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 3.4. Operating mechanism installation The operating mechanism should be mounted to the supporting structure, 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.
Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 3.5. Pole coupling and adjustment After setting the poles on the supporting structure, one should check the limit positions of the 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.
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Poles coupling regulation lies in such a setting of the length of the tie rod and coupling lever location adjust- ment so that the current paths at each pole reach the limit positions according to the following requirements. ONIII-72 1300...
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Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. Regulation lever – Left position. Regulation lever – Right position. Regulation lever – Neutral position.
Type Disconnector’s and Coupling shaft – left Coupling shaft – right earthing switches driving earthing switch earthing switch shaft ONIII-72 A = 615 A = 700 A = 765 ONIII-123 A = 615 A = 1300 A = 1360 ONIII-145...
In lower end position, the earthing blade's ending can not be located over insulators coupling tie rod. (Apply to ONIII-72 and ONIII-123) On earthing switches coupling shaft should be set earthing switch’s locking, in order to enable earthing switch to work only with open disconnector.
Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 3.8. Grounding of the base frames After disconnector’s and earthing switches regulation, 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.
Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o. 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 manoeuvring all safety at work rules applicable in installation’s location should be respected.
(about 40 years). If the disconnector is damaged due to improper assembly or operation, it is possible for the manufacturer to repair it for a fee. Disconnector type ONIII does not possess any parts, which should be re- placed during normal operation in service life.
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