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ABB GSec/T1 Instructions For Installation, Operation And Maintenance

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Medium voltage products
GSec
Instructions for installation, operation and maintenance
Index
1. Packing and transport
2. Checking on receipt
3. Storage
4. Handling
5. Description
6. Assistance and maintenance
7. Accessories
8. Recycling
9. Routine inspections
4
4
5
5
6
29
33
38
42

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Summary of Contents for ABB GSec/T1

  • Page 1 Medium voltage products GSec Instructions for installation, operation and maintenance Index 1. Packing and transport 2. Checking on receipt 3. Storage 4. Handling 5. Description 6. Assistance and maintenance 7. Accessories 8. Recycling 9. Routine inspections...
  • Page 2 Index 1. Packing and transport 6. Service and maintenance 2. Checking on receipt 6.1. General recommendations and precautions 3. Storage 6.2. Maintenance frequency 4. Handling 6.3. Inspection 5. Description 6.4. Assistance 5.1. Performance and electrical characteristics 6.5. Replacing and installing new apparatus 5.2.

  • Page 3: For Your Safety

    Dalmine Italy Issued by department Date Lang. Revis For your safety! 31/01/2014 Doc. name Status of document UniSec Handbook Assembly Doc. type Operations – Check that all the installation, putting into service and Workstation Creator maintenance operations are carried out by qualified Warning ! personnel with suitable knowledge of the apparatus.

  • Page 4: Packing And Transport

    A plastic covering protects the switch-disconnector from dust ABB (either directly, or through your representative or supplier) during the period it remains in storage. and the haulage contractor that made the delivery.

  • Page 5: Storage

    3. Storage Handling The switchgear must be stored in a dry, dust-free, non- corrosive place at a temperature between – 5 °C and 45 – Make sure that the insulating parts of the °C for the standard version and between – 40 °C e + 45 °C switchgear are not damaged when the for the low temperature version.

  • Page 6: Description

    M0 – 1000 mechanical operations (1) 630A for GSec/T2 (2) 16kA (3s) for GSec/T2 (3) For 21kA (3s) please contact ABB Earthing switch type EF 230 Admissible short-time withstand current (3 s): 2 kA Short-time peak current value (3s)
  • Page 7 5.2. Types of switch-disconnectors and earthing switches 5.2.1. GSec/T1 and GSec/T2 switch-disconnectors Switch-disconnector Key locks Lifting points Voltage presence signalling lamps Switch-disconnector lever seat Cable route of voltage presence signalling lamps Earthing switch lever seat Terminal box of auxiliary circuits...

  • Page 8: Overall Dimensions

    5.3. Overall dimensions GSec/T1/T2 switch-disconnectors 37,5 141,5 141,5 37,5 M10x25 M10x25 138,5 95,5 352,5 341,5 Detail B 7 (8x) Door interlock. Detail C 10mm: Travel. 32mm: Dimension required for door lock. 943,5 Upper contact 24.06.20 GSec/T1: Upper contact 17.08.20 Low voltage enclosure...
  • Page 9 GSec/T2F switch-disconnectors Rating plate Disconnector Key locks Fuse crossbeam Voltage presence signalling lamps Earthing switch Cable route of voltage presence signalling lamps Earthing switch transmission rod Three post and/or capacitive insulators Switch-disconnector-Earthing switch lever seat Lifting points Terminal box for wiring auxiliary circuits Earthing circuit connection point Switch-disconnector position signalling seat Main circuit connection point...
  • Page 10 GSec/T2F switch-disconnectors 37,5 141,5 141,5 37,5 Fuse connection 138,5 352,5 341,5 Door interlock. 10mm: Travel. 32mm: Dimension required for door lock. 7 (8x) Detail B 943,5 Detail C Upper contact Lower contact GSec/T2F: 24.06.20 Low voltage enclosure 24.06.16 Housing of the operating mechanism 17.08.20 Cover 12.08.25...
  • Page 11 GSec/IB switch-disconnectors Disconnector Earthing switch position signalling seat Lifting points Rating plate Earthing switch Key locks Earthing switch transmission rod Voltage presence signalling lamps Switch-disconnector-Earthing switch lever seat Cable route of voltage presence signalling lamps Switch-disconnector lever seat Fixed contacts Terminal box for wiring auxiliary circuits Main circuit connection points Disconnector position signalling seat...
  • Page 12 GSec/IB switch-disconnectors 37,5 141,5 141,5 37,5 M10x25 M10x25 138,5 95,5 Door interlock. 352,5 341,5 22,3 10mm: Travel. 32mm: Dimension required for door lock. 7 (8x) Detail B Detail C Upper contact GSec/IB: 24.06.20 Lower contact 24.06.16 Low voltage enclosure 17.08.20 Housing of the operating mechanism 12.08.25 Enclosure...
  • Page 13 The following types of GSec apparatus can be supplied. three upper ones for connecting the busbars housed in the GSec/T1: three-position switch-disconnector with manual busbar compartment (upper) and three lower ones for the operation once dead-center has been passed. It is normally line compartment applications (cables and terminals, fuses, used to make incoming/outgoing compartments.

  • Page 14: Operating Mechanisms

    Switch-disconnector with earthing switch ST Sealed metal enclosure Upper connection of busbar compartment Lower connection of busbar compartment Upper insulating bushing of busbar compartment Lower insulating bushing of busbar compartment Fixed upper main contact Fixed main contact of earthing switch Fixed lower main contact of IMS/ST Blade of switch-disconnectors LINE...
  • Page 15 5.6. Earthing switches operating mechanism, is positioned on the load side of the safety circuit-breaker, associated with the IMS, is interlocked There are three types of earthing switches: by a transmission lever to earthing switch ST and has full – ST making capacity.
  • Page 16 5.7. How to connect earthing switch ES 230 Comply with the following instructions when installing the earthing switch. 1. Place the operating mechanism in its seat on the panel. Fig. 10 2. Fix the operating mechanism in place with the screws. DETAIL A 1 : 5 Warning !
  • Page 17 Lower position used for ABB CEF fuses Upper position used for ABB CEF fuses 442 mm in length 292 mm in length Note: When the slot is pointing upwards, it means that the switch is in the open position! DETAIL C...
  • Page 18 1. Assemble the fuse holder base on the right-hand side of the panel. There are two positions, depending on the length of the fuse chosen. A0001 Assembly in the upper position A0002 Assembly in the lower position for ABB 292-length fuses for ABB 442-length fuses Pos. Description A0001 A0002 Q.ty...
  • Page 19 2. Turn the shaft to the earthed position. Make sure that it is in 4. Fix the switch to the panel with the relative screws, as the condition shown in figure 17. shown in figures 20 - 21. Fig. 17 Fig.

  • Page 20: Reference Standards

    5.9. General information about SF 5.11. Interlocks gas-insulated switching and isolating apparatus In its pure state, SF6 is an odourless, colourless, non-toxic The operations must be performed with the gas with a density about six times higher than that of air. normal actuating torque using the dedicated This is why, although it is free from any specific physiological operating lever (≤100 Nm).

  • Page 21: General Information

    5.12. Switch-disconnector operating 5.12.1. Unit with single-spring operating mechanism instructions 1. Switch-disconnector closing from “open” position – Once started, all the operations must be completed and the lever removed from its operating seat. – The operations must be performed with the normal actuating force using the dedicated operating lever (<...
  • Page 22 2. Switch-disconnector opening from “closed” position 3. Switching from “open” position to “earthed” position a) Fit operating lever into lower hole. b) Turn lever clockwise to “earthed” position. Fig. 25 - “Closed” position Fig. 28 a) Fit operating lever into upper hole. b) Turn lever counter-clockwise to “open”...
  • Page 23 b) Fit operating lever into lower hole. 5.12.2. Unit with double-spring operating mechanism c) Turn lever counter-clockwise to “open” position. NOTE In the case of a motor-operated unit with double-spring operating mechanism, all remote controlled operations must be inhibited and disabled before any mechanical operations are performed.
  • Page 24 f) Push pushbutton to the right (green “I”) to set unit to the The spring is now loaded. d) Remove the operating lever. “closed” position. e) Push pushbutton downwards to release pushbuttons (arrow). Fig. 36 - “Open” position Fig. 39 - “Closed” position 2.
  • Page 25 3. Switching from “earthed” position to “open” position 4. Switch-disconnector opening from “earthed” position a) Fit operating lever into lower hole. a) Close cable compartment door. b) Turn lever clockwise to “earthed” position. b) “Earthed” position Fig. 42 - “Open” position with operating lever in lower hole. Fig.
  • Page 26 Motor operated with remote control switches: 5.12.3. No-load spring release procedure NOTE 1. Remove the protective enclosure from the operating The no-load spring releasing operation is guaranteed for a mechanism. limited number of times < 25. 2. Insert the tool (screwdriver) as indicated in the photo and If the springs are loaded and the disconnector is open, inhibit the interlock.
  • Page 27 An example of key interlocks is shown in figure 48. The unit 5.12.5.1. Cable testing position with single-spring operating mechanism has 2 key interlocks a) Fit the operating lever into the earthing seat. for the line switch and 2 key interlocks for the earthing switch. b) Turn lever clockwise to the “earthed”...

  • Page 28: Putting Into Service

    5.13. Putting into service Other checkpoints Depending on the allocation of responsibilities, it may also be 5.13.1. Preparatory operations necessary to check the following equipment in the vicinity of the switchgear: Before connection to the medium voltage network – Power cables The following operations must be carried out in preparation –...

  • Page 29: Service And Maintenance

    6. Service and maintenance 6.1. General recommendations and Maintenance instructions precautions Maintenance preserves trouble-free operation and ensures the switchgear remains functional for the longest possible time. It comprises the following closely related activities: – Inspection: Determination of the effective conditions WARNING –...
  • Page 30 Partial discharge must not occur on the surfaces of the often effective as a temporary remedy. It is equipment in the presence of operating voltage. This can, advisable to ask the ABB after-sales service for example, be detected by characteristic noises, a clearly department for advice regarding permanent perceptible smell of ozone, or visible glowing in the dark.
  • Page 31 6.5. Replacing and installing new apparatus 6.5.1. Replacing tripped fuses Troubleshooting and cleaning The fuses cannot be regenerated. According to IEC Publication 60282-1, all three fuses must be replaced even if only one or two of them have blown. Exceptions are allowed when verifications have found that the fuses have not been subjected to any overcurrent.
  • Page 32 Installing the fuses a) Start installation from phase L3 (the one furthest from the door). b) The fuse striker pin must be facing upwards. First of all, insert the entire lower part of the fuse into the bottom fuse holder. Fig.
  • Page 33 7. Accessories 7.1. VPIS voltage presence indicating Operating temperature systems The VPIS will operate reliably over a temperature range of – 25 °C to + 50 °C. VPIS indicators are designed to indicate the presence of service voltage. Phase comparison and testing of VPIS Each phase of the integrated VPIS has a connection point on the front panel, which can be used to perform phase –...
  • Page 34 7.2. Pressure monitoring devices Pressure gauge The device detects the measurement in temperature A device for monitoring the gas in the switch-disconnector compensated zones and monitors the operating pressure of can be installed on the front of the panel. The devices the gas in the switch-disconnector.

  • Page 35: Interlocks 20

    7.3. Door lock interlock between the operating mechanism and door only allows the door to open when the earthing switch/ The “door lock” is a specific interlock to be applied to the es is/are closed (force interlock). Vice versa, it prevents the cable/circuit-breaker/fuse compartment door.
  • Page 36 7.4. Key lock 7.5. Spare parts, additional materials and lubricants Key locks for the various operating mechanism seats can be supplied on request. The following key combinations can be supplied for each 7.5.1. Spare parts open and closed position of every switch-disconnector, disconnector and earthing switch.
  • Page 37 Troubleshooting Problem Action to be taken All unit types Switch-disconnector cannot be closed. Check that switch-disconnector is in the “open” position Turn the operating lever clockwise. Switch-disconnector cannot be opened. Check that switch-disconnector is in the “closed” position. Turn the operating lever counter-clockwise. Switch-disconnector cannot be moved to the "earthed"...

  • Page 38: General Aspects

    <0.5 Dealing with waste requires èpermission in most countries Aluminium and you must obtain authorization for your own company. Zinc ABB can provide more details, especially about SF gas. Plastic Please contact us if you have any questions. <0.5 <0.5...
  • Page 39 A. Tightening torques for steel screws and nuts/bolts Nuts and bolts Hexagonal head bolts with flange Max. tightening torque [Nm] Max. tightening torque [Nm] Type Steel class 8.8 Type Steel class 90 Cheese-head Torx Fastite screw Max. tightening torque [Nm] Cheese-head hex.
  • Page 40 Type of joint Tightening torque [Nm] Bolts on the CT, TPU type min. nominal max. Bolts on electrical jaw contacts min. nominal max. Cable connection nut min. nominal max. Connections in busbar min. nominal max. Bolts on circuit-breaker min. nominal max.
  • Page 41 Type of joint Tightening torque [Nm] Bolts on the "Mandolino" CT min. nominal max. Bolts on post insulator min. nominal max. Bolts on connection and switching min. busbar nominal max. min. CT mounting bolts nominal max. GSec and busbar HySec min.

  • Page 42: Routine Inspections

    9. Routine inspections – The routine inspections must be performed by our checked. It is advisable to comply with the indications in the personnel or suitably qualified customer's personnel with table for the first interventions. in-depth knowledge of the apparatus. Optimal time limits for carrying out successive operations can –...
  • Page 44 For more information please contact: — More product information: abb.com/mediumvoltage Your contact center: abb.com/contactcenters More service information: abb.com/service Data and illustration are not binding. We reserve the right to make changes in the course of technical development. © Copyright 2018 ABB. All rights reserved.

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Gsec/t2Gsec/t2fGsec/ib

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