Hệ thống kích từ NARI NES5100. Hiện tại ở Việt Nam các nhà máy thủy điện vừa và nhỏ thường sử dụng hệ thống kích từ này. Hệ thống có chi phí khá rẻ so với các hãng khác nhưng độ ổn định và tuổi thọ trung bình 12 năm cho các module là lựa khá hợp lý
NES5100 Excitation Regulator User’s Guide Electrical Control Branch, NARI Group Corporation August 2008 Table of Contents 1. Overview 1 2. Hardware Configuration 8 3 ． Man-Machine Communication 20 4. Commissioning Procedure 69 5. Operation Procedure 75 6. Maintenance and Troubleshooting 92 NARI-ECC 1. Overview 1.1 Foreword This Guide describes NES5100 excitation regulator. This Guide consists of eight chapters and describes problems including installation, maintenance and troubleshooting of the excitation regulator. The chapters are described as follows: 1. Overview: installation engineer, commissioning engineer, operators and repair and maintenance engineer must read Overview section of this Guide. 2. Configuration and setting: Commissioning engineer, repair and maintenance engineer must read Configuration and Setting section. 3. Installation instruction: Installation engineer and repair engineer must read Installation Instruction section. 4. Man-machine communication: Commissioning engineer, operator, repair and maintenance engineer must read Man-Machine Communication section. 5. Commissioning procedure: Commissioning engineer, repair and maintenance engineer must read Commission Procedure section. 6. Operating procedure: Operator must read operating procedure section. 7. Maintenance and troubleshooting: Operator, repair and maintenance engineer must read Maintenance and Troubleshooting section. 8. Annex and drawings: Installation engineer, commissioning engineer, operator, repair and maintenance engineer must read Annex and Drawings section. The abovementioned documents constitute a collection of documents. This Guide is intended to help users with correct installation, trail run, operation and maintenance (including troubleshooting). This Guide is available to users who have acquired adequate professional 1 NARI-ECC knowledge of mechanical and electrical engineering. Operators who carry out initial trial run and troubleshooting must be equipped with professional technical knowledge, and refer to professional system hardware drawings, and produce test and commissioning report. Excitation regulator must be tested according to recognized test standard. This Guide can help operator to discover failures. Please replace failed modules (both board and power components) with spare parts. Experts are usually required to carefully check system failure. Most of important, the abovementioned documents must be kept complete and up-to-date in order to ensure that all system information remain accurate and valid. Furthermore, this Guide must be kept in a safe place. 1.2 The Purpose of this User’s Guide Why you should read this Guide Before putting Excitation System into operation, you should read this Guide because: ◆ Important notice related to operation and safety is available to you. ◆ You will find detailed technical information about excitation system and ways to correctly complete operation. ◆ You will find ways to achieve stable operation and a prolonged service life of system 1.3 How to Use this Guide ◆ Target user This guide is targeted at operators and maintenance engineers of NES5100 excitation regulator. Those who are responsible for operating and maintaining excitation regulator should be well experienced in mechanical and electrical engineering. They 2 NARI-ECC should attend excitation system-related training offered by Electrical Control Branch, NARI Group. We suggest that repair engineer should regularly attend our training course. ◆ Scope of this Guide This Guide includes all information related to safety and correct operation of NES5100 excitation regulator. Section 2 includes important information related to operation and maintenance of excitation system. This Guide consists of eight sections. This Guide will be supplied along with the excitation regulator. ◆ Notice Important notice always appears at the beginning of every paragraph or every line in the paragraph ◆ Signs Caution, danger! This caution sign indicates a possible source of hazards that could cause serious personal injury or damage to the equipment. Caution: electric shock This caution sign indicates a possible source of electrical hazards that could cause personal injury or damage to the equipment. Note This sign indicates all particularly important information. Electrostatic charge This sign indicates that electrostatic charge may cause damage to circuitry; do not touch electrical components Caution, Hanging This caution sign indicates that hanging objects may 3 NARI-ECC cause serious personal injury. 1.4 Safety Rules Article 1 These Rules are established to ensure safety and health of staff and safe operation of electrical system and equipment by summarizing and analyzing experience in installation, operation, maintenance and repair of excitation equipment. Leaders and electric engineers must strictly comply with these Rules. Article 2 Safety is everybody’s business. Article 3 These Rules apply to those who install, run, operate, repair and maintain the excitation regulator. Various departments may establish complementary rules and implement these rules upon the approval of executive in charge of production (chief engineer). Article 4 Electrical engineers must meet the following requirements: ◆ Without any disease that may impact their ability to work; ◆ With necessary electric knowledge, and be familiar with Working Regulation on Power Safety and these Rules, dependent on their duties and nature of work; ◆ To have an intimate knowledge of how to prevent accidents; receive training on first-aid and fire extinguishing system, and particularly first aid for electric shock. Article 5 Those who install, run, operate, repair and maintain this excitation regulator must study these Rules. Those who perform electricity-related tasks should receive special training and work upon the approval of the leaders. New electrical engineers and practitioners and staff who temporarily (leader and casual laborer) perform electricity-related tasks are not allowed to work until they receive training on safety; they are not allowed to work independently; introduce wiring of electrical equipment and safety to electricians who are sent to support a temporary work program. Article 6 If somebody has been found in breach of these Rules in a manner that is 4 NARI-ECC serious enough to cause personal injury or damage to equipment, immediately prevent him/her from doing so. Article 7 Whenever service or work is performed on the equipment, please strictly follow the safety rules. Article 8 Whenever service or work is performed on the equipment, please follow the lock-out/Tag-out procedure. Make sure that each of the following steps are taken. ◆ Disconnect power before servicing the equipment; ◆ Check to confirm that the equipment has no power by testing for voltage; ◆ Place a warning tag; Article 9 Disconnect all electrical power to the equipment. Article 10 Please test voltage with qualified electroscope; respectively test voltage on both sides of the equipment. Before testing voltage, conduct a test in the equipment to confirm that electroscope is in good working condition. Article 11 Place a warning tag that reads, “UNDER REPAIR, DO NOT USE” on the power source and on the equipment; Article 12 A supervisor of electrical works should have practical experience in electrical work. Article 13 Keep test equipment away from equipment in operation; collision with equipment could cause malfunction. Prevent the equipment from being vibrated or collided when cleaning or operating it. Use insulated tools. Article 14 In case of a fire where electrical equipment is present, immediately shut off the electrical current and join the fight against fire. 1.5 Emergency Management There is a danger of electric shock or short circuit when performing electrical measurements in a high-voltage signal terminal of NES5100 excitation regulator. Short circuit could cause malfunction of equipment and jeopardize the safety of motors and electrical network. Maintenance engineer must perform electrical measurements with caution. Never take a risk! 5 NARI-ECC Such negligence could result in: Serious personal injury or equipment damage. 1.5.1 Fire Management All workers must know the location of fire extinguishers and emergency exits and how to use a fire extinguisher. Fire extinguishers are divided into the following categories: halogenated agent fire extinguisher, Carbon dioxide fire extinguisher and foam fire extinguisher. ◆ Carbon dioxide fire extinguisher is used to extinguish a fire where electrical equipment is present; Do not point carbon dioxide fire extinguisher at anyone catching fire. ◆ Foam fire extinguisher is used to extinguish a fire where electrical equipment is absent. Foam fire extinguisher should not be used to extinguish a fire where electrical equipment is present. You may point foam fire extinguisher at anyone catching fire. In case of a fire: Disconnect all electrical power to excitation regulator by means of local or remote control, and actuate emergency shutdown process (see Chapter 7: Operation and Control for details), and shut off all equipment. Fires in current-carrying cabinet can only be extinguished with carbon dioxide fire extinguisher. Never use water or foam to extinguish a fire where electrical equipment is present! 1.5.2 First Aid for Electrical Injury To give first Aid for electric shock, you must seize every minute and second. At first, get the victim away from the source of the current as soon 6 NARI-ECC as possible. The longer the current flows through the body, the more serious the injury. Be extremely careful that you don’t become the next casualty. Do not touch the victim with your bare hands until you are sure that there is no further danger to you or victim and the victim is no longer in contact with the electrical source. As soon as the current is turned off, make sure that emergency lamp is ready. New lamp must meet the requirements of fire and explosion prevention. Make sure that current is immediately shut off, and first aid is immediately given. If the victim is conscious, keep the person lying down and check for breathing and pulse. Do not more the victim from his or her original position. If the victim is unconscious, lay him or her down and keep his or her airway open. Spend 5 seconds calling the victim or tap lightly on the shoulder in order to determine whether the victim loses consciousness or not. Do not attempt to call the victim by shaking the victim’s head. Administer proper first aid as needed. Summon help by calling Emergency Medical Service. 1.6 Important Notice According to our experience, following suggestions and instructions of this Guide will greatly improve the reliability of our excitation regulator. All information available on this Guide introduces our product and should not be considered to have shown actual characteristics of our products. In order to meet user’s requirements, we will continue to make every effort to keep us updated with the latest technology trends. Therefore, there may be discrepancy between documents. Although this Guide has been carefully examined, there are always glitches. Please notify us immediately after you discover any mistakes in this Guide so that we can make modification as soon as possible. It is impossible for this Guide to take into consideration all possible problems with the use and installation of the equipment. Therefore, please contact us immediately after you discover any problems that this Guide fails to mention. 7 NARI-ECC Follow this Guide and local safety rules to install, connect and commission the equipment. Such work as welding, moving jumper or resistance modification must be done by trained professionals. We hereby expressly declare that we will assume no responsibility or liability for any damage caused by improper operation or installation even if this Guide fails to specify this. We hereby point out that you must use original spare parts. We reserve all rights for this Guide, including patent rights and other industrial property rights. You must not use or copy this Guide to the third party. 1.7 Address of Manufacturerb Electrical Control Branch, NARI Group Corporation Address: 8 Nari Road, Nanjing Post code: 210003 Tel: +86 （ 0 ） 25 58646173 Fax: +86 （ 0 ） 25 58646172 2. Hardware Configuration 2.1 Why you should read this Chapter You will know about information related to main technical requirements of NES5100 excitation regulator. In addition, this Chapter describes configuration and settings of all equipment inside NES5100 excitation regulator. 8 [...]...NARI-ECC 2.2 Hardware Configuration of NES5100 Excitation Regulator 2.2.1 Block Diagram Figure 2-1: Sketch Map of Card Connector of one NES5100 excitation regulator Figure 2-1: Sketch Map of Card Connector of one NES5100 excitation regulator See Table 2-1 for name of boards: Board No Board name EX01 Pulse power board EX02 System power... as follows: ● [startmode] － style: generator set excitation mode of power plan, 1= self-shunt excitation, 2=3 generator excitation ●[user]－powerstation: name of power plant ●[avrcount] － count: the number of regulators inside excitation regulator cabinet; maximum: 2 sets of regulators ● [1]－ip: ip address of regulator A ● [2]－ip: ip address of B set of regulator ●[opcserver]-Serve: Location and name... restart the excitation regulator and parameter will remain to be the set value Read it in Flash process, and system will temporarily stop working; make sure that pilot regulator is read-in Figure 4-9: Parameter Setting Interface 31 NARI-ECC 3.2.4.4 Over -Excitation and Under -Excitation Curve Setting Figure 4-10: Over -excitation and under -excitation user interface Click “over -excitation and under -excitation ... over -excitation and under -excitation user interface will appear; please see Figure 3-10 for over -excitation and under -excitation user interface The bottom of the interface is divided into four sections with tab controls: over -excitation curve, under -excitation 1 section curve, under -excitation 2 section curve and under -excitation 3 section curve The top of the interface displays various kinds of over -excitation. .. Control Corporation under NARI Group Corporation for NES5100 excitation regulator This software system consists of intelligent excitation monitoring software and communication middleware OPC Server for NES5100 NES_HMI consists of the following modules: system topology view module, failure log module, parameter setting module, over -excitation and under -excitation curve module, waveform recording module,... 2-2 for block diagram of hardware of NES5100 excitation regulator A channel is usually equipped with a set of transformers; the other set of transformers are not shown in Figure 2-2 9 NARI-ECC Figure 2-2: Controller of automatic twin-channel and independent manual channel See Figure 2-3 for Block Diagram of Local Area Structure of NES5100 Excitation Regulator 图 2-3 NES5100 图图器局域图图方图图 Figure 2-3: Block... Regulator 图 2-3 NES5100 图图器局域图图方图图 Figure 2-3: Block Diagram of local area structure of NES5100 Excitation Regulator A 套 Regulator A B 套 Regulator B 图 CAN: Dual-channel CAN communication 交图机：Exchanger 工控机：Process control computer 图方图控：Remote monitoring 10 NARI-ECC 2.2.2 Overview The normal modes supplied for controlling excitation are automatic voltage regulation (AVR) and field current regulation (FCR)... includes all information about man-machine communication of NES excitation regulator Please carefully read this Chapter before operating the regulator Through man-Machine communication, operator can finish the following works: ◆ Display signal and operating data ◆ Display and set parameters ◆ Change operating mode of NES5100 excitation regulator ◆ Observe and record step test and step test waveform,... Under -excitation 2 section curve and underexcitation 3 section curve is derived from movement of under -excitation 1 section curve Usually, power plant use four-point fitting method to produce over -excitation curve Therefore, various kinds of curves have “four-point fitting” button Click this button, then the four-point fitting button will pop up Please see Figure 4-11 for window interface of under -excitation. .. Under -excitation 1 section four-point fitting user interface 3.2.4.5 Waveform Recording Waveform recording is an important part of field test of excitation regulator; 33 NARI-ECC click “waveform recording” icon, then waveform recording module user interface will appear; as waveform recording process is automatically stopped, user need to know about change in some important parameters of excitation regulator . Area Structure of NES5100 Excitation Regulator. 图 2-3 NES5100 图图器局域图图方图图 Figure 2-3: Block Diagram of local area structure of NES5100 Excitation Regulator A 套： Regulator A B 套： Regulator B 图 CAN:. Configuration of NES5100 Excitation Regulator 2.2.1 Block Diagram Figure 2-1: Sketch Map of Card Connector of one NES5100 excitation regulator Figure 2-1: Sketch Map of Card Connector of one NES5100 excitation. technical requirements of NES5100 excitation regulator. In addition, this Chapter describes configuration and settings of all equipment inside NES5100 excitation regulator. 8 NARI-ECC 2.2