Huawei STS-3000K-H1 Installation Manual
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Huawei STS-3000K-H1 Installation Manual

Huawei STS-3000K-H1 Installation Manual

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STS-(3000K, 6000K)-H1 Smart Transformer
Station (Spain, Eiffage Turroneros)
Installation Guide
Issue
02
Date
2020-02-21
HUAWEI TECHNOLOGIES CO., LTD.

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  • Page 1 STS-(3000K, 6000K)-H1 Smart Transformer Station (Spain, Eiffage Turroneros) Installation Guide Issue Date 2020-02-21 HUAWEI TECHNOLOGIES CO., LTD.
  • Page 2 Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS"...

  • Page 3: About This Document

    About This Document Purpose This document describes how to install the STS-3000K-H1 and STS-6000K-H1 smart transformer stations (STSs for short). Before installing the STS, read through this document, get familiar with the features, functions, and safety precautions provided in this document.
  • Page 4 Updates between document issues are cumulative. The latest document issue contains all the changes in earlier issues. Issue 02 (2020-02-21) Updated 7.4 Installing a Lightning Arrester for the Ring Main Unit. Issue 01 (2019-12-09) This issue is used for first office application (FOA). Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 5: Table Of Contents

    2.2 Components ................................10 2.2.1 STS ..................................10 2.2.2 LV Room .................................. 11 2.2.2.1 LV Room of the STS-3000K-H1 .......................... 11 2.2.2.2 LV Room of the STS-6000K-H1 .......................... 11 2.2.3 Transformer Room ..............................12 2.2.3.1 STS-3000K-H1 Transformer Room ........................12 2.2.3.2 STS-6000K-H1 Transformer Room ........................
  • Page 6 A FAQ ............................... 68 A.1 How Do I Repair Paint Damage on the Container? ....................68 A.2 Requirements for the STS-3000K-H1 Foundation Dimensions ................. 72 A.3 Requirements for the STS-6000K-H1 Foundation Dimensions ................. 73 B Acronyms and Abbreviations ....................75 Issue 02 (2020-02-21) Copyright ©...

  • Page 7: Safety Precautions

    The "NOTICE", "CAUTION", "WARNING", and "DANGER" statements in this document do not cover all the safety instructions. They are only supplements to the safety instructions. Huawei will not be liable for any consequence caused by the violation of general safety requirements or design, production, and usage safety standards.

  • Page 8: Operator Qualifications

    Do not open the host panel of the equipment.  Do not install other equipment on the top of a container without evaluation by Huawei.  Do not perform operations such as arc welding, drilling, and cutting on the top of a container.

  • Page 9: Electrical Safety

    Obtain approval from the local electric utility company before using the equipment in grid-tied mode.  Ensure that the cables you prepared meet local regulations.  Use dedicated insulated tools when performing high-voltage operations. AC and DC Power Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 10: Site Requirements

    Before hoisting objects, ensure that hoisting tools are firmly secured onto a load-bearing object or wall.  Ensure that the angle formed by two hoisting cables is no more than 90 degrees, as shown in the following figure. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 11 Ensure that the ladder is securely positioned. The recommended angle for a ladder against the floor is 75 degrees, as shown in the following figure. An angle rule can be used to measure the angle. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 12: Commissioning

    When the equipment is powered on for the first time, ensure that professional personnel set parameters correctly. Incorrect settings may result in inconsistency with local certification and affect the normal operation of the equipment. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 13: Maintenance And Replacement

    If the equipment is faulty, contact your dealer.  The equipment can be powered on only after all faults are rectified. Failing to do so may escalate faults or damage the equipment. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 14: Product Overview

    STS-(3000K, 6000K)-H1 Smart Transformer Station (Spain, Eiffage Turroneros) Installation Guide 2 Product Overview Product Overview 2.1 Appearance Figure 2-1 Appearance Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 15 PANEL B) (LV PANEL A) (13) Single-swing door for the LV (14) Double-swing door room for the LV room The STS-3000K-H1 does not have LV PANEL B configurations. Figure 2-2 Container dimensions Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 16: Components

    Figure 2-4 STS components (1) LV PANEL A (2) Heat exchanger (3) Smoke sensor (4) LV PANEL B (5) Transformer (6) Ring main unit (7) Power distribution box (PDB) (8) Auxiliary transformer Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 17: Room

    Installation Guide 2 Product Overview 2.2.2 LV Room 2.2.2.1 LV Room of the STS-3000K-H1 The LV room is a single-side cabinet structure. To perform any operation, you only need to open the door of the LV cabinet without entering the STS.

  • Page 18: Transformer Room

    The transformer room is used to convert the LV AC power into the MV AC power. The main equipment is a transformer configured with gas, oil temperature, pressure, and oil level protection. A comprehensive protection device is also configured in the MV room for the transformer. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 19 When a minor fault occurs on the transformer, accumulation alarm or the oil of the transformer generates gas. The gas an oil flow trip. will rise and enter the gas relay. In this case, the Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 20: Sts-6000K-H1 Transformer Room

    The transformer room is used to convert the LV AC power into the MV AC power. The main equipment is a transformer configured with gas, oil temperature, pressure, and oil level protection. A comprehensive protection device is also configured in the MV room for the transformer. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 21 The insulation oil in the conservator is connected breather to the atmosphere through a dehydrating breather with silica gel to absorb moisture and impurities in the air and maintain the performance of the Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 22: Mv Room

    2.2.4 MV Room No cable connector is installed in cabinet G1 or G3. The cable connectors in the figure are for reference only. The actual position and dimensions may vary. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 23 (Spain, Eiffage Turroneros) Installation Guide 2 Product Overview Figure 2-9 CGM.3 (CVC) (1) Operation hole of grounding (2) Operation hole of (3) Cable switches disconnectors connectors (4) Cable clamps (5) Ground bar Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 24: Equipment Installation

    The ground copper bar should be a hot-dip zinc-coated flat steel sheet with a cross-sectional area of 60 mm x 5 mm. One end of the copper bar should be connected to Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 25 It is recommended that protective plates be installed on the door and side of the MV room. The purpose is to prevent people around the STS from being burnt by an arc explosion. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 26: Preparing Tools

    Opening: 14 mm, 18 mm Utility knife Nipper Open-end torque wrench Combination wrench Opening: 18 mm, 29 mm Allen wrench (M6) Crimping tool Electrician's knife Pipe wrench File Vacuum cleaner Multimeter Marker Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 27 Hoisting capability ≥ 50 Length of the lifting rope t; working radius ≥ 10 m ≥ 6.5 m Step ladder Safety Tools Tool Insulated ladder Flashlight Spare fuse for MV Access key switchgear Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 28: Hoisting Equipment

     Some dedicated tools and installation materials supplied with the product may not be listed in this table. 3.3 Hoisting Equipment Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 29 During hoisting Do not allow any unauthorized person to enter the hazardous areas and never stand under the crane arm. Ensure that the crane is properly located and avoid long-distance hoisting. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 30 Step 2 Measure the support points for the container on the foundation. Ensure that the support points are on the same plane and the deviation is no more than 5 mm. Step 3 Hoist the container to the installation position using a crane. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 31 3 Equipment Installation Figure 3-1 Hoisting equipment Step 4 Remove the rainproof cloth from the container. Step 5 Remove the customs lock using a pressure clamp. Step 6 Remove the sealing plate. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 32 If it is difficult to open or close the container door, take out metal washers from the fittings and place them under the container support feet. You can adjust the container door for multiple times until it can be opened and closed smoothly. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 33: Hoisting Verification

    If steel bars in a concrete base block the drill bit, drill the inner mounting holes.  Ensure that the expansion bolts are tightened when securing the angle steel to the base. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 34 STS-(3000K, 6000K)-H1 Smart Transformer Station (Spain, Eiffage Turroneros) Installation Guide 3 Equipment Installation Figure 3-4 Securing a container ----End Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 35: Sts Overall Check

    The ground copper bar in the LV cabinet is not loose, screws are not loose or missing, and components are not loose or displaced. Oil level gauge The oil level displayed on the gauge in the transformer oil cabinet is normal. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 36: Operating Components

    When operating a transformer, ensure that the transformer is in the no-excitation state, that is, the high and low voltage sides of the transformer are not energized. 5.1 Opening or Closing a Cabinet Door Common Cabinet Door Step 1 Open the cabinet door. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 37 STS-(3000K, 6000K)-H1 Smart Transformer Station (Spain, Eiffage Turroneros) Installation Guide 5 Operating Components Figure 5-1 Opening a cabinet door Step 2 Close the cabinet door. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 38 STS-(3000K, 6000K)-H1 Smart Transformer Station (Spain, Eiffage Turroneros) Installation Guide 5 Operating Components Figure 5-2 Closing the cabinet door ----End Screen Door Step 1 Open the screen door. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 39 STS-(3000K, 6000K)-H1 Smart Transformer Station (Spain, Eiffage Turroneros) Installation Guide 5 Operating Components Figure 5-3 Opening a screen door Step 2 Close the screen door. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 40: Interlocking Between Stss With A Cvc Ring Main Unit

    For the STS that is farthest from the booster station, turn on the grounding switch in cabinet G3, remove the key, and deliver the key to the O&M personnel for proper storage. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 41 According to the requirements, interlock the grounding switch of the booster station with that of the first STS to ensure operation safety. Figure 5-5 Interlocking between STSs with a CVC ring main unit ----End Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 42: Operating The Pressure Release Valve

    5.3.2 Installing the Rainproof Canopy for the Pressure Release Valve Step 1 Remove the cover from the pressure release valve. Step 2 Install the rainproof canopy delivered with the STS on the pressure release valve. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 43: Installing A Dehydrating Breather

    STS. Install a proper dehydrating breather based on the required type. Figure 5-8 Installation position of the dehydrating breathers (1) Position of the dehydrating breather for (2) Position of the dehydrating breather for STS-3000K-H1 STS-6000K-H1 Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 44: Installing A Common Dehydrating Breather

    Figure 5-9 Securing the dehydrating breather Step 3 Remove the end cover from the dehydrating breather. Step 4 Add transformer oil to the cover of the dehydrating breather and reinstall the cover. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 45: Installing A Maintenance-Free Dehydrating Breather

    Figure 5-10 Securing the end cover ----End 5.4.2 Installing a Maintenance-Free Dehydrating Breather Step 1 Remove the flange cover from the dehydrating breather. Step 2 Secure the dehydrating breather using the bolts and nuts delivered. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 46 Step 3 Adjust the position of the dehydrating breather to ensure that the maintenance compartment door faces the operator. Step 4 Tighten the locking nut of the dehydrating breather. Step 5 Remove the dustproof cover from the bottom of the dehydrating breather. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 47 Figure 5-13 Installing a PE cable Step 7 Open the maintenance compartment door of the dehydrating breather. Step 8 Install cables in the maintenance compartment of the dehydrating breather. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 48: Operating An Oil Surface Thermometer

    Avoid damaging the PE cable when closing the maintenance compartment door. Figure 5-14 Installing cables in the maintenance compartment ----End 5.5 Operating an Oil Surface Thermometer Step 1 Rotate the cover counterclockwise to remove the glass cover. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 49 Step 3 Rotate the cover clockwise to reinstall the glass cover. Ensure that the white pointer is on the left and the red pointer is on the right. Step 4 Rotate the knob to put the red and white pointers together. Figure 5-15 Operating an oil surface thermometer ----End Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 50: Sts Insulation Tests

    LV side, and auxiliary loop. For details, see the STS-(3000K, 6000K)-H1 Smart Transformer Station User Manual. Perform the insulation tests before connecting incoming cables and sealing cable holes. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 51: Connecting Cables

    Power cables and signal cables should be bound separately.  Both ends of cables should be marked with a label that is easy to understand and faces outward. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 52: Preparing Cables

    (C) Side view of the STS MV cabinet room (D) Solar inverter (E) AC switch box (F) UPS (G) Smart array controller (H) Support tracking (I) Power-consuming device (SACU) system (J) Power grid (K) STS Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 53: Connecting A Pe Cable For The Sts

    Dimensions of the wiring terminal: width ≤ 43 mm; length ≤ 136.5 mm; outer diameter of the crimping tube  ≤ 37 mm 7.2 Connecting a PE Cable for the STS Grounding Requirements  The grounding should comply with the local electrical safety regulations. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 54 Figure 7-3 Connecting a PE cable to the main ground bar in the LV room ----End Follow-up Procedure To enhance the corrosion resistance of a ground terminal, apply silica gel or paint on it after connecting the PE cable. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 55: Connecting An Ac Input Power Cable

    Do not mix up the aluminum and copper sides of the copper-to-aluminum washers. Ensure that the aluminum side of the washer contacts the aluminum wiring terminal, and the copper side contacts the AC terminal block. Figure 7-4 Requirements for OT/DT terminals Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 56 STS-(3000K, 6000K)-H1 Smart Transformer Station (Spain, Eiffage Turroneros) Installation Guide 7 Connecting Cables Figure 7-5 Dimensions of the AC terminal block Procedure Step 1 Connect an AC input power cable. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 57 (1) Screw assembly (2) Copper bar (3) Wiring terminal (4) Nut (5) Flat washer (6) Spring washer Step 2 Use firestop putty to seal the cable hole at the bottom. ----End Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 58: Installing A Lightning Arrester For The Ring Main Unit

    Figure 7-7 Installation position of the lightning arrester (1) Position of the lightning arrester Step 1 Adjust the height of the support for the lightning arrester based on the height of the lightning arrester. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 59 STS-(3000K, 6000K)-H1 Smart Transformer Station (Spain, Eiffage Turroneros) Installation Guide 7 Connecting Cables Figure 7-8 Adjusting the height of the support for the lightning arrester Step 2 Install a lightning arrester. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 60 STS-(3000K, 6000K)-H1 Smart Transformer Station (Spain, Eiffage Turroneros) Installation Guide 7 Connecting Cables Figure 7-9 Installing a lightning arrester Step 3 Secure the support for the lightning arrester. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 61: Connecting An Ac Output Power Cable

    Step 1 Cut a cable inlet according to the cross-sectional area of the cable. Step 2 Prepare terminals and secure them by referring to the installation guide to the split-type shielded cable connector. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 62 Figure 7-11 Connecting an AC output power cable (a single STS) Figure 7-12 Connecting AC output power cables (multiple STSs cascaded) The cable room of the load switch cabinet supports the access of two rows of cables. The actual situation prevails. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 63 If the cables are not securely connected, the ring main unit may be damaged, causing gas leakage. Step 4 Seal the bottom cable hole using firestop putty, clear the cable room sundries, and close the door. ----End Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 64: Connecting Cables To An Sacu

    The installation position of an SACU is reserved outside the MV room.  The cables of the SACU have been reserved on auxiliary transformer side in the MV room before delivery. Table 7-2 Cable labels for connecting the STS-3000K-H1 to the SACU Cable Type STS End (Preinstalled) SACU End...
  • Page 65 838-3X1:PE:1-W5:SH 838-W5:SH-3X1:PE:1 Step 1 Install an SACU. Figure 7-15 Installing an SACU Step 2 Connect a PE cable. Figure 7-16 Connecting a PE cable Step 3 Connect three-phase AC power cables. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 66 SACU that houses one PID module, refer to the way of connecting the first route of the three-phase AC power cable. Figure 7-17 Connecting three-phase AC power cables Step 4 Connect an RS485 communications cable. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 67: Optional) Connecting Cables To The Ups

    7.7 (Optional) Connecting Cables to the UPS You have obtained the UPS and its auxiliary materials. Check that the quantity and model of the following materials are correct based on the packing list. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 68 04151857 PSU and the ESM (10 mm Wall mounting kit 21153226 Fitting bag (including 02231YSG terminals, labels, tubing, and cable ties) Procedure Step 1 Install the UPS. Install a mounting kit. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 69 Move the mounting kit from the rear of an ESM to the left side, and install the ESM on the outer wall of the STS. Figure 7-21 Installing an ESM Install the connecting kit and combine the PSU with the ESM. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 70 STS-(3000K, 6000K)-H1 Smart Transformer Station (Spain, Eiffage Turroneros) Installation Guide 7 Connecting Cables Figure 7-22 Installing a PSU Install a connecting plate. Figure 7-23 Installing a connecting plate Step 2 Connect a PE cable. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 71 Installation Guide 7 Connecting Cables Figure 7-24 Connecting a PE Cable Step 3 Connect the cables between the PSU and the ESM. Figure 7-25 Connecting cables Step 4 Connect AC power cables. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 72 Step 6 Connect a signal cable for the SACU. Insulate the unused cable terminals and bind them in the cable holder. Figure 7-27 Connecting a signal cable for the SACU ----End Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 73: Verifying The Installation And Cable Connections

    Unused cable holes are covered with waterproof caps. The cable holes in use are sealed. The installation space is proper, and the installation environment is clean and tidy. All doors of the STS are closed and properly locked. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 74: A Faq

    Spray paint or paint, Steps 1, 2, 3, 4, and spraying or (primer damaged, zinc-rich primer, brushing is steel base material brush (required for recommended. exposed) repainting a small 3. For many area), fine Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 75 Step 2 Dip a piece of cotton cloth into anhydrous alcohol and wipe the polished or damaged area to remove the dirt and dust. Then wipe off the alcohol with a clean and dry cotton cloth. Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 76 Figure A-3 Repainting a damaged area Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 77 The following is a paint model list provided by Huawei. The list may be updated irregularly and is for reference only. The price of paint and technical services shall be subject to local price standards.

  • Page 78: Requirements For The Sts-3000K-H1 Foundation Dimensions

    The outline of the smart transformer station is 6058 mm (L) x 2438 mm (W).  Weight of STS-3000K-H1 is no more than 15 t and transformer oil is mineral oil, noncorrosive. And the volume of transformer oil is about 1880 L (about 1.65 t).

  • Page 79: Requirements For The Sts-6000K-H1 Foundation Dimensions

    The outline of the smart transformer station is 6058 mm (L) x 2438 mm (W).  Weight of STS-6000K-H1 is no more than 22 t and transformer oil is mineral oil, noncorrosive. And the volume of transformer oil is about 3850 L (about 3.4 t). Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 80 STS-(3000K, 6000K)-H1 Smart Transformer Station (Spain, Eiffage Turroneros) Installation Guide A FAQ Figure A-5 Foundation dimensions Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

  • Page 81: B Acronyms And Abbreviations

    (Spain, Eiffage Turroneros) Installation Guide B Acronyms and Abbreviations Acronyms and Abbreviations air circuit breaker communication electromagnetic compatibility identifier liquid crystal display low voltage medium voltage power distribution box peak efficiency index Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.
  • Page 82 STS-(3000K, 6000K)-H1 Smart Transformer Station (Spain, Eiffage Turroneros) Installation Guide B Acronyms and Abbreviations smart transformer station transformer Issue 02 (2020-02-21) Copyright © Huawei Technologies Co., Ltd.

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