ZWAE ONIII User manual

Disconnectors assembly manual
Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o.
ONIII
Horizontal centre-break disconnector
Manual No DTR.01.15.01.EN

Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o.
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Table of Contents
1. DELIVERY METHOD ............................ 4
2. DISCONNECTOR’S RECEIPT..................... 4
3. MOVING...................................... 4
4. UNLOADING .................................. 6
5. ASSEMBLY .................................... 7

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zwae.com.pl
CAUTION
During the operation of electrical equipment, certain parts of
these devices are normally under dangerous voltage, and me-
chanical parts, also remotely controlled, can move quickly.
Failure to follow the warning instructions can result in serious
personal injury or material damage.
Only suitably qualied 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 assembly as
well as careful service and maintenance.

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1. DELIVERY METHOD
ONIII-123 outdoor disconnectors are delivered to the customer partially assembled. The bases of individual dis-
connector poles, current paths, coupling elements, drives and structures for suspending the drives are placed in
a wooden crate (1 crate contains 3 disconnector poles). The insulators are delivered in a separate wooden box.
2. DISCONNECTOR’S RECEIPT
Check if the disconnector and the accessories, meet the shipping specications. You should also check if the
delivery is not mechanically damaged. In the event of any non-compliance or damage, notify the manufacturer
immediately.
3. MOVING
Crates with ONIII-123 disconnector parts can be safely moved with a forklift. It is allowed to lift the crates one
at a time, by the pallet base, on either side of the crate.
Fig. 1, 2. Shipping crates. Left – disconnectors’ parts, right – insulators

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It is advisable to leave disconnectors in the crates as long as possible and move them together to the nal
installation location. When stacking, pay special attention to the support points in the corners of the crates
overlapping each other. It is allowed to stack two levels of crates.
Fig. 3, 4. Permitted method of lifting transport crates
Fig. 5. Permitted method of stacking the transport crates

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4. UNLOADING
The box with disconnector elements should be opened by removing the lid and then the side wall, where the
operating mechanisms are packed.
Then, all available elements should be manually removed from the box: current paths, operating mechanisms,
supporting structures, shafts and coupling rods, and the remaining side walls should be dismantled.
Fig. 6. The method of opening the transport crate
Fig. 7. Unloading the transport crate

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To unload the disconnector bases, use a forklift again. Remove the bases one at a time.
5. ASSEMBLY
To each of the bases, tighten the diagonal tie, freely suspended for the time of transport (marked in blue below)..
Fig. 8. The way of lifting the disconnector base
Fig. 9. Assembly of the diagonal tie

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Attach the insulators to the base. Use three M16x70 bolts and one M16x90 bolt for each of the insulators. Pay
attention to the correct positioning of the bolts, especially the stop bolt.
Screw the halves of the current path. Use M16x35 bolts. Pay attention to the assembly sides of the paths: path
with male contact - on the right side, path with female contact - on the left side.
Fig. 10. Insulators installation
Fig. 11, 12. The position of the M16x90 stop bolt on the left and right side

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The diagonal tie (shown in Fig. 9) should be adjusted in such a way that when closing the disconnector, the gap
between the female contact and the entering, male contact is within 3 - 5 mm.
The mutual closing depth of the contacts should also be checked. If it is smaller than shown in Fig. 15, correct
the positioning of the insulators using the screws below the rotary foot of the disconnector.
Fig. 13. Current paths assembly
Fig. 14. Correctly adjusted diagonal tie

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Fig. 15. Correct closing depth of the current path
Fig. 16. Disconnector adjustment points
A stop bolt limiting
the rotation angle of
the current paths
Current path adjust-
ment screws
In the next step, the tie rod connecting the disconnector's operating crank with the lever on the side of the right
earthing switch should be adjusted. The tie is marked in blue in Fig. 17.