Tài liệu kỹ thuật về cáp HV của tuabin gió VESTAS, mô tả về đặc tính cáp HV sử dụng trong tuabin và cách thi công, lắp đặt cáp HV. Các chú ý và hướng dẫn của nhà sản xuât.................................................................................................................................................................................................................................................................................................................................................
Installation of HV cable on switchgear Document no.: 0016-8622 V15 Class: RESTRICTED Type: T09 Date: 2020-01-22 VESTAS PROPRIETARY NOTICE: This document contains valuable confidential information of Vestas Wind Systems A/S It is protected by copyright law as an unpublished work Vestas reserves all patent, copyright, trade secret, and other proprietary rights to it The information in this document may not be used, reproduced, or disclosed except if and to the extent rights are expressly granted by Vestas in writing and subject to applicable conditions Vestas disclaims all warranties except as expressly granted by written agreement and is not responsible for unauthorized uses, for which it may pursue legal remedies against responsible parties Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 Wind turbine type Read the full document before you start to work Send questions or concerns about the document to Vestas Wind Systems A/S Wind turbine type Mk version V80-2.0 MW Mk 7–8 V90-1.8/2.0 MW Mk 7–8 V90-2.0/2.2 MW Mk 10 V90-3.0 MW Mk V100-1.8/2.0 MW Mk 7, 7.1, 7.2, 7.3, and 7.4 V100-2.0 MW Mk 7H V100-2.0/2.2 MW Mk 9–10 V100-2.6 MW Mk V105-3.3/3.45 MW Mk V105-3.45 MW Mk 3A V110-2.0/2.2 MW Mk 10 V112-3.0 MW Mk 0–1 V112-3.3/3.45 MW Mk V112-3.45 MW Mk 3A V116-2.0 MW Mk 11B V116-2.1 MW Mk 11D V117-3.3/3.45 MW Mk V117-3.45 MW Mk 3A V117-4.0/4.2 MW Mk 3E V120-2.0/2.2 MW Mk 11C V120-2.0/2.2 MW Mk 11D V126-3.3/3.45 MW Mk Page of 30 Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 Wind turbine type Mk version V126-3.45 MW Mk 3A V126-3.45 MW Mk 3B V126-4.0/4.2 MW Mk 3E V136-3.45 MW Mk 3B V136-4.0/4.2 MW Mk 3E V150-4.0/4.2 MW Mk 3E Change description Description of changes Added section 12.3.2 To install the residual current transformer (KOLA 06 B2) to the switchgear (if applicable), page 12 Page of 30 Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 Page of 30 Table of Contents Safety Educational requirements of service technician Abbreviations and technical terms 4.1 4.2 Referenced documentation Safety documents Reference documents Purpose Note 7 Tools Spare parts Consumables 10 Weights 11 Estimated time use 12 12.1 12.2 12.3 12.3.1 12.3.2 Procedure Lockout-tagout start To route the HV tower cable to the switchgear To install the HV tower cable in switchgear 11 To route the conductors under the CBP 11 To install the residual current transformer (KOLA 06 B2) to the switchgear (if applicable) 12 To install the conductors on the switchgear 16 To install the current sensor to the T-Body 17 To end-terminate the Nexans Euromold 19 To end-terminate the NKT CB24 22 To install the cable clamps 24 To install the earth conductor 24 To install the switchgear cable plate 26 To install the cable on the tower wall 26 Lockout-tagout end 29 12.3.3 12.3.3.1 12.3.3.2 12.3.3.3 12.3.4 12.3.5 12.3.6 12.4 12.5 Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 Safety Page of 30 0011358041 All work relating to a Vestas wind turbine, including work methods and practices, employee training and protective measures, and use of tools and equipment, shall be in accordance with the requirements of the applicable governmental and private occupational safety and health codes and standards Employers engaged in such work are also required to be familiar with and comply with the wind turbine-specific ‘Safety regulations for operators and technicians’ manual for the relevant wind turbine type Vestas shall not be responsible for any liabilities arising from failure to comply with such requirements Vestas reserves the right to inspect such work to ascertain such compliance The service technician must read and understand the PPE sheets for each of the chemicals used or work done in this instruction The PPE sheets describe the correct personal protective equipment to wear for the specific work If in doubt about the PPE requirements for the work, contact the site responsible or the line manager and confirm the correct procedure before starting the work Read the full document before you start to work Educational requirements of service technician 0011465014 At least of the service technicians who work in a wind turbine must be able to prove that they have a valid GWO basic safety training certificate At least service technician must hold the wind turbine-specific training course certificate for the wind turbine in question Some tasks require one or more advanced training modules or job-specific training, as described in the Vestas technical training programme The person who plans a specific task must make sure that the service technicians involved have the proper know-how for the completion of that task Abbreviations and technical terms Table 3.1: Abbreviations Abbreviation Explanation CBP Circuit breaker panel ECC Energy control coordinator GWO The Global Wind Organisation ICP Incoming cable panel HV High voltage LOTO Lockout-tagout PPE Personal protective equipment SDP Switch disconnector panel 0011376388 Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 Page of 30 Table 3.2: Explanation of terms Term Explanation None Referenced documentation 4.1 Safety documents 0011376387 Table 4.1: Safety documents Document no Title 0001-0410 Personal protective equipment sheets 0004-4159 Standardised procedure risk assessment (SPRA) Various Safety regulations for operators and technicians 4.2 Reference documents 0011376386 Table 4.2: Reference documents Document no Title 920098 Torque wrench settings 960501 Bolt connections 0018-3841 Switchgear module 0018-7497 Installation and operating manual (ABB 36 kV and 40.5 kV) 0018-7498 Installation and operating manual (Siemens 24 kV) 0056-3224 Installation and operating manual (Ormazabal) 0038-3752 HV switchgear (Mk 2–3) 0021-4798 HV switchgear operation (Mk 0–2 and Mk 8–11) 0043-4230 Switchgear technical description (Mk 10A and 10B) 0055-1011 Switchgear technical description (Mk 10C, 10D, and 11) 0065-3482 Standard service tools 0079-9393 HV switchgear (Mk 3E) 0080-2424 HV switchgear operation (Mk 3E) 0079-9641 Switchgear technical description (Mk 3E) Unless it is specified differently, see 920098 ‘Torque wrench settings’ for information about bolt types and bolt lubrication, and see 960501 ‘Bolt connections’ for information about torque values Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 Purpose Page of 30 0011376385 The purpose of this document is to describe how to install the medium-voltage tower cable in the switchgear Note 0011376384 The standard and streamline switchgear consists of CBP, optional ICP and 1, 2, or SDPs The basic switchgear consists of CBP The design of the switchgear panels (CBP and SDP) varies depending on the manufacturer Tools 0011376383 For standard service tools, see 0065-3482 ‘Standard service tools’ Table 7.1: Tools Item no Quantity Description VT187075 5–50 Nm torque wrench ERP: TORQUE WRENCH VT730302 ROUND SLING 1M SWL 1T ERP: SLING RNEN 1m 1t VT730499 ERP: CH.HOIST LH HH 0.25t 1.5m Some tools in this tools list can vary in shape and technical specification from region to region due to local requirements If in doubt, contact your local tools warehouse for tools applicable to your region This note may not be applicable for any special tools used in this procedure Spare parts 0011449219 Table 8.1: Spare parts Item no Quantity Description None Consumables 0011449218 Table 9.1: Consumables Item no None Quantity Description Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 10 Weights Page of 30 0011449217 This section is not relevant to this procedure 11 Estimated time use 0011449216 This section is not relevant to this procedure 12 Procedure Risk of exposure to electric shock, arcing, flashover, fire, and explosion! SPRA ID No 3.19 • Do not work on live circuits • Obey the applicable LOTO procedures • Only qualified personnel are allowed to the work • Make sure that the switchgear circuit breakers are open, earthed, and secured against closing • Use an HV/LV voltage detector to measure zero voltage before you start to the work • Use certified and correct equipment • Use the necessary PPE that is given in PPE sheets and 12.1 Lockout-tagout start 0011426234 Isolate the part of the wind turbine where you will the work Obey the LOTO procedure instruction referred to in ‘Safety documents’ If no LOTO procedure instruction is included in ‘Safety documents’, obey the LOTO instruction supplied by the site-ECC 12.2 To route the HV tower cable to the switchgear 0011376400 In V100/V110-2.0/2.2 MW Mk 10, V116-2.0/2.1 MW Mk 11, and V120-2.0/2.2 MW Mk 11 wind turbines, the HV tower cable is supplied with or without the end terminations for the switchgear (in this condition, the end terminations must be installed on the bushings in the CBP) Route the HV tower cable from the ladder to the CBP of the switchgear • For V100-2.0 MW Mk 7H, V100-2.0/2.2 MW Mk 9, 10A, and 10B, V110-2.0/2.2 MW Mk 10A and 10B, and V112-3.0 MW Mk 0–1, see the illustration that follows Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 Page of 30 Figure 12.1: Routing of the HV cable from the ladder to the CBP of the switchgear Seen from the front of the switchgear Seen from the rear of the switchgear The wrapping must not be removed from the end terminations before they are installed on the switchgear Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 • Page 10 of 30 For V100-2.0/2.2 MW Mk 10C and 10D, V110-2.0/2.2 MW Mk 10C and 10D, V116-2.0 MW Mk 11B, V116-2.1 MW Mk 11D, V120-2.0/2.2 MW Mk 11C and 11D, V112-3.0 MW Mk 0–1, V117-4.0/4.2 MW Mk 3E, V126-4.0/4.2 MW Mk 3E, V136-4.0/4.2 MW Mk 3E, and V150-4.0/ 4.2 MW Mk 3E, see the illustration that follows Figure 12.2: Routing of the HV cable on the tower wall Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 Page 16 of 30 12.3.3 To install the conductors on the switchgear 0011376398 In the MW and MW wind turbines, the connectors in the phase conductors are pre-installed from the factory In the MW wind turbines, the connectors in the phase conductors must be installed on the site before the cable phase conductors are installed in the switchgear Damage to cable terminations! • The phase conductors must be run up to the switchgear bushings in such a way that a minimum bending radius of times the cable diameter is kept • The terminals in the CBP might suffer damage if they are exposed to the weight of the cable or if the cable is twisted • Make sure the connectors in the CBP are not carrying the weight of the cable Remove the protection covers on the bushings located in the CBP Install the phase conductors in the bushings See the supplier’s instructions in the sections that follow a For supplier’s instructions to end terminate the Nexans Euromold, see section 12.3.3.2 To end-terminate the Nexans Euromold, page 19 Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 b Page 17 of 30 For supplier’s instructions to end terminate the NKT CB24, see section 12.3.3.3 To end-terminate the NKT CB24, page 22 12.3.3.1 To install the current sensor to the T-Body 0020233561 This procedure is applicable for the ABB switchgear only The current sensor must be installed to the T-Body in dry and indoor conditions and at temperatures between 0°C and +40°C The current sensor cable must not be moved or bent if the temperature is below 0°C Always earth the current sensor to the sensor ground terminal Attach the current sensor to the cable connector without the use of the clamping system A final adjustment of the sensor positioning is necessary after installation of the final connector to the bushing Attach the current sensor (1) in the centre measuring area of the T-Body (2) Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 a Put the cable of the current sensor at the top of the T-Body b Use the clamping system to put the current sensor (1) in correct position The maximum allowed deviation on the circular side is 5° The maximum allowed deviation in the upwards/ downward direction is mm Connect the current sensor (1) to the secondary cable (2) outside the bushing Do steps 1-3 again, to install the current sensors that remain a Make sure that all current sensors point to the same side Page 18 of 30 Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 Connect the sensor ground terminal to earth Torque the sensor ground terminal to 2–3 Nm Page 19 of 30 12.3.3.2 To end-terminate the Nexans Euromold 0011376397 Risk of exposure to hazardous substances and mixtures, Kema® RG-1100 Regular Grade (Anti-Seize Aluminium Pasta)! SPRA ID No 2.02 • Toxic to aquatic life with long lasting effects • Use the necessary PPE that is given in sheet G Read and obey the related SDS Clean and lubricate (2) the connector (3) and the bushing interface (1) Push the connector onto the bushing To get the correct applied torque there must not be lubricant on the threaded parts • • • See the supplier instructions that are given on the product For Nexans/3M™ Modular Splicing System 5835 Series, see supplier instructions If no instructions are available, continue to the next steps Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 Page 20 of 30 Put the clamp screws (1) into the threaded hole of the bushing a Use a torque wrench (4) with a 130 mm extension rod (3) and a 22 mm socket (2) to tighten the clamp screws (1) to a torque of 50 Nm To get the correct applied torque there must not be lubricant on the threaded parts Clean and lubricate (1) the insulating plug (2) of the opposite side of the connector a Put the plug in the connector and engage the threads b Tighten the plug with hand c Tighten the insulating plug assembly d Use a torque wrench with a 24 mm socket and tighten the plug to a torque of 30 Nm Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 Page 21 of 30 Clean the inner surface of the voltage detection cap (1) The inner surface of voltage detection cap must not be lubricated a Put the voltage detection cap (1) in the correct position on the connector Apply force to push the voltage detection cap so that the voltage detection cap is in the correct position Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 12.3.3.3 To end-terminate the NKT CB24 Bushing (part of switchgear) Assembly paste Threaded pin Spring washer Nut Insulation plug Voltage detection cap Connector casing Stress cone 10 Earth connection 11 Earth cable lug 12 Phase conductor Figure 12.6: NKT CB24 end termination Page 22 of 30 0011376396 Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 Page 23 of 30 Install the threaded pin (3) in the bushing inside the CBP a Torque the threaded pin to 35 Nm Clean and lubricate the contact surfaces of the connector housing (8) and the bushing (1) interface Push the connector onto the bushing (1) Install the spring washer (4) and the nut (5) on the threaded pin (3) a Torque the nut to 30 Nm Clean and lubricate the contact surface of the insulating plug (6) and the T-connector Install the insulation plug (6) on the T-connector a Torque the insulation plug to 30 Nm Clean the inside surface of the voltage detection cap (7) The inner surface of the voltage detection cap must not be lubricated Install the voltage detection cap (7) on the connector Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 12.3.4 To install the cable clamps Page 24 of 30 0011597231 Install the suspension clamps around the conductors a Torque the nuts to Nm Make sure that the connector does not hold the cable weight 12.3.5 To install the earth conductor Locate the earthing busbar See the supplier documentation for the location a Location of earthing busbar (1) in the CBP in switchgear (This illustration is an example) Install the cable lug (1) of the earth conductor on the earthing busbar a Torque the bolts See the supplier documentation 0011597441 Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 b Page 25 of 30 Installation of earthing cable lug (This illustration is an example) Connect each of the earth wires from the T-connectors to the earthing bar inside the CBP for the Nexans T-connector Each connection must hold only earth wire a The illustration shows the earth wires (1) on the Nexans T-connector b The illustration shows the earth wires (1) on the NKT T-connector Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 Page 26 of 30 Always keep a minimum bending radius of times the cable diameter The bolt torque for the earth conductor must be according to the documentation from the switchgear supplier 12.3.6 To install the switchgear cable plate 0011376395 This section is not applicable to a basic switchgear with a HV tower cable entrance at the rear side of the CBP base frame Attach the edge protection to the cable opening in the cable plate The switchgear manufacturer delivers the edge protection with the switchgear Install the cable plate (1) in the rear side of the CBP base frame (in the switchgear) 12.4 To install the cable on the tower wall 0011590472 This section is relevant only for V112-3.45 MW Mk 3A, V117-3.45 MW Mk 3A, V1263.45 MW Mk 3A and 3B, V100-2.0/2.2 MW Mk 10C and 10D, V110-2.0/2.2 MW Mk 10C and 10D, V116-2.0 MW Mk 11B, V116-2.1 MW Mk 11D, V120-2.0/2.2 MW Mk 11C and 11D, V117-4.0/4.2 MW Mk 3E, V126-4.0/4.2 MW Mk 3E, V136-4.0/4.2 MW Mk 3E, and V150-4.0/4.2 MW Mk 3E wind turbines Risk of fall to the ground! SPRA ID No 1.02 • Use the necessary PPE that is given in PPE sheet The PPE must be attached to approved anchor points, slides, or cables • Use work positioning rope and fall arrest lanyard in combination to restrict movement • Obey the rules for work at height Refer to local requirements • Make sure that there are no persons in the areas where overhead work is done • Make sure that all platform hatches are closed when they are not in use Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 Page 27 of 30 Measure the distance between the ladder and the HV cable inlet on the rear side of the switchgear Find the middle area of the switchgear and put a mark at a height of 1.3 m (approximately) Install a bracket on the mark All the brackets delivered are of the same type a Make sure that the magnets are installed vertically Use a chain hoist and a sling to lift the cable on the right side of the bracket When you lift the cable, make sure to keep a minimum bending radius of times the diameter of the cable a Use the chain hoist and the sling on the welded support on the entrance platform Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 Install the cable in the cable bracket and attach the upper part of the bracket loosely on the cable Move the cable through the bracket until the cable is set in an optimal position on the tower wall According to the length of the cable, some configurations are possible Make sure that the bending radius is maintained Make sure that the minimum height between the cable and the ground is more than 300 mm The bending radius of the cable must be more than times the thickness of the cable Torque the screws on the bracket to Nm Page 28 of 30 Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 Page 29 of 30 Risk of effects from magnetic fields on persons who use implanted electronic devices! SPRA ID No 25.02 • Users of pacemakers and other implanted electronic devices must be aware of the risks from electronic forces in static magnetic fields • Read and comply with the instructions for the tools or components carefully Install sufficient number of magnets to make sure that the cable is stable on the identified path (approximately 1–1.5 m between the brackets) Make sure that the magnets are installed vertically 10 Install the cable on the brackets a Attach the screws on the brackets 11 Torque the bolts on all the brackets to Nm 12.5 Lockout-tagout end 0011426243 Risk of exposure to electric shock, arcing, flashover, fire, and explosion! SPRA ID No 3.28 • Do not remove LOTO devices or restore energy if the work area is not clean of nonessential items which may accidentally have been dropped during work (Tools, screws, washers, cable cores, and such like) • Inspect the work area to make sure that any of the above items are removed • Dropped items may cause severe arc blasts, short circuits, and injuries if they are not removed before energisation Installation of HV cable on switchgear Document no.: 0016-8622 V15 · Class: RESTRICTED · Type: T09 Page 30 of 30 Energise again or restore power to the part of the wind turbine where you have done the work Obey the LOTO procedure instruction referred to in ‘Safety documents’ or the LOTO instruction supplied by the site-ECC ... Page 11 of 30 12.3 To install the HV tower cable in switchgear 12.3.1 To route the conductors under the CBP CBP CBP HV grid cable connections HV grid cable connections HV tower cable connections... 3E, and V150 -4.0/ 4.2 MW Mk 3E, see the illustration that follows Figure 12.2: Routing of the HV cable on the tower wall Installation of HV cable on switchgear Document no.: 0016- 8622 V15 · Class:... no Quantity Description None Consumables 0011449218 Table 9.1: Consumables Item no None Quantity Description Installation of HV cable on switchgear Document no.: 0016- 8622 V15 · Class: RESTRICTED