ABB UniSec DY800 Series Installation, Service And Maintenance Instructions
24 kv prefabricated assemblies with arc-proof metal enclosures and multi-function apparatus
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Medium voltage products
UniSec DY800 in accordance with Enel specifications
Installation, service and maintenance instructions for 24 kV
prefabricated assemblies with arc-proof metal enclosures and
multi-function apparatus
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Table of Contents
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Summary of Contents for ABB UniSec DY800 Series
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Page 1: Table Of Contents
Medium voltage products UniSec DY800 in accordance with Enel specifications Installation, service and maintenance instructions for 24 kV prefabricated assemblies with arc-proof metal enclosures and multi-function apparatus For your safety! Packing and transport Checking on receipt Storage Handling Description Rating and overall dimensions Construction characteristics Reference Standards Interlocks... -
Page 3: For Your Safety
For your safety! • Make sure that the installation room (spaces, divisions and ambient) is suitable for the electrical apparatus. Responsible behaviour safeguards your own and • Check that all the installation, putting into service and main- others’ safety! Please consult us if further details if tenance operations are carried out by qualified personnel required. -
Page 4: Packing And Transport
1. Packing and transport Strictly comply with the pictograms and instructions on the packs. The cubicles are packed in accordance with the instructions in technical specification Enel DY 1135. Each cubicle is protected by a plastic cover to prevent water from infiltrating if it rains when the loading and unloading operations are performed and to keep the dust off during storage. -
Page 5: Checking On Receipt
(see figure) correspond to the information in the order confirmation and shipping note. If damage or discrepancies are discovered, immediately inform ABB (either directly, or through your representative or supplier) and the haulage contractor that delivered the goods. The cubicles are supplied solely with the accessories specified at the time of order and validated in the order confirmation. -
Page 6: Storage
3. Storage UniSec switchgear must be stored in a dry, dust-free place with a non-corrosive atmosphere at a temperature between –25 °C and +70 °C, with 95% relative humidity or less and without condensation. Please consult us if different requirements are involved. -
Page 7: Handling
4. Handling UniSec switchgear is normally placed on a wooden pallet and • Make sure that the insulating parts of the fastened with four bolts, one per corner. apparatus are not damaged when the cu- For handling purposes, the switchgear can be lifted by a crane bicles are handled. -
Page 8: Description
5. Description 5.1 Rating and overall dimensions UniSec switchgear must be stored in a dry, dust-free place without condensation. with a non-corrosive atmosphere at a temperature between Please consult us if different requirements are involved. –25 °C and +70 °C, with 95% relative humidity or less and Cubicle Maximum insulation voltage 24 kV... - Page 9 Overall dimensions UniSec DY800/116 UniSec DY800/216 UniSec DY800/316 Weights Dimensions (mm) (Kg) UniSec DY800/116 500 1850 1050 UniSec DY800/216 500 2250 1050 UniSec DY800/316 700 1950 1150...
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Page 10: Construction Characteristics
5.2 Construction characteristics 5.2.2 Protection classes UniSec switchgear is generally supplied with the following pro- 5.2.1 Cubicles tection classes: UniSec DY800 switchgear is internal arc-proof and suitable for − IP2X protection class inside the switchgear with the door secondary distribution requirements. open UniSec DY800 switchgear uses a multi-function apparatus with −... -
Page 11: Reference Standards
5.3 Reference Standards Operating energy storage occurs in two ways: 1) by means of a DC-powered electric motor with the following DY800 Technical Specification Enel and indicat- characteristics: ed references – Rated auxiliary power supply voltage: 24 V DC IEC EN 60447 Human-Machine Interface. - Page 12 4) It must only be possible to open the cubicle door in condi- 5.4.7 Electrical interlock between earthing switch ST and tions of safety, i.e. with feeder disconnector SL open and circuit-breaker I earthing switch ST closed. This condition is obtained with a This is an electric lock that prevents circuit-breaker I from clos- padlockable interlock of the mechanical type.
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Page 13: Instructions For The Operating Sequence Of All Unisec Dy800 Cubicles
6. Instructions for the operating sequence of all UniSec DY800 cubicles − Check to make sure that the indicator (5) confirms that • Only use the supplied panic operating opening has occurred by displaying the letter O in black lever. on a white background in the relative window. -
Page 14: Voltage And Phase Correspondence Indicator
7. Voltage and phase correspondence indicator 7.1 Voltage indicator 7.2 Phase correspondence check These devices conform to the indications in the Enel DY 811 Consult the instruction manual supplied with the apparatus for and DY 1811 specifications. They are installed in UniSec DY800 a description of the operating method. -
Page 15: Installation
8. Installation 8.1 General information 8.3 Installation room • Installation must be performed by our per- • The zone where gas is exhausted from the sonnel or by the customer’s personnel so room must be studied when the installa- long as they possess detailed knowledge tion is designed. - Page 16 DY800/116 [mm] [mm] [mm] [mm] ≥ 450 ≤ 300 ≥ 1200 ≥ 100 Dimension C represents the space required to withdraw the cubicle DY800/216 [mm] [mm] [mm] [mm] ≥ 1200 ≥ 100 – – Dimension C represents the space required to withdraw the cubicle DY800/316 [mm] [mm]...
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Page 17: Fumes Overpressure Exhaust Stack
8.4 Fumes overpressure exhaust stack UniSec DY800/116 and 216 Arc in the busbar duct – open the flap (1) to allow the fumes to flow into the stack (2); – the cable compartment flap (3) remains closed; – fumes escape from the exhaust vent of the stack (4). •... -
Page 18: Foundations And Fixing Bed
8.5 Foundations and fixing bed 8.6 Joining and fastening the cubicles The cubicles are normally pre-engineered for connection of the Make sure that the floor is flat before joining the cubicles. medium voltage circuit from the bottom. The cubicles must be joined in the following way: The front part of the roof of UniSec cubicles has a duct for rout- –... - Page 19 Front panel that closes the busbar compartment To fasten the panels, fit all the screws marked X into the holes and fully tighten them. How to fasten DY800/216 cubicles When the UniSec DY800/216 unit arrives, the base (1) is fixed >...
- Page 20 Panel assembly sequence Comply with the numbered sequence in the figures below to assemble the panels. UniSec DY800/116 panel End panel Slot-in joint End panel fixing points Slot-in joint Upper cover panel (tighten all the screws) Fit the roof under the edge of the end plate Tighten the end...
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Page 21: Connections
8.7 Connections General warnings UniSec DY800/316 panel Make sure that the fixed couplings of the switchgear and the connections (cable terminals, busbar connec- tions) are clean and free from any deformation caused by shocks received during transport or storage. Eliminate all traces of oxidation with a fine file or emery cloth. - Page 22 8.7.2 Earthing busbars 8.7.3 Connection of the auxiliary circuits The earthing busbar is routed longitudinally along the lower There are auxiliary circuits in all UniSec cubicles. part of the switchgear. There are copper alloy bolts at its ends The wiring inside the switchgear is installed in the factory. The for connecting to the earthing network of the installation.
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Page 23: Cable Tests
9. Cable tests • Before proceeding, ensure that the part of the installation in which the work must be performed is in a safe condition. • Connection of cables for test purposes (applied voltage troubleshooting) alters the characteristics of the switchgear. Those who do this must ensure compliance with the correct procedures in order to guarantee safe conditions for the workers. -
Page 24: Putting Into Service
10. Putting into service • Only use the supplied panic operating lever. • All the operations for putting into service must be carried out by our personnel or by the customer’s sufficiently qualified personnel with detailed knowledge of the apparatus and installation. •... - Page 25 Inspections prior to putting into service Inspected part Operations Notes Cubicles Visually check inside and outside the cubicle to make sure that there is no evident damage. Remove any foreign bodies (e.g. tools, test connections inadvertently left in place after installation).
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Page 26: Routine Inspections
11. Routine inspections 11.2 Inspection schedule • The routine inspections must be performed by our personnel or by the customer’s Part liable to Intervals Operation required inspection personnel so long as they are sufficiently Perform a few 3 years. Make sure that the operations qualified and possess detailed knowledge mechanical and transmission levers function... - Page 28 For further details please contact: Your sales contact: www.abb.com/contacts More product information: www.abb.com/productguide The data and illustrations are not binding. We reserve the right to modify the contents of this document following technical and product developments. © Copyright 2013 ABB.
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