Part One Overall Plan

1.1 Project Overview

The Jiangyin Hailan Innovation Building is a frame structure as a whole,on the ground55Layer, underground3Layer,Set up a separate skirt room4Layer,Total building area approximately22.5Ten thousand square meters. Overall design one setenergyManagement system,Collect and summarize data from the water meters and power meters on the floor, and generate settlement reports;to eachpower supplyCircuit safetypretendmulti-functionalElectrical fire detectorImplementing circuit parameters and statesmeasurement and controlAt the same time, real-time collection and analysis of the leakage situation of the power supply circuit are carried out, and real-time alarms are given for circuits that exceed the standard.

1.2 Design Specifications

IEC61000-4-30:2003 "Electromagnetic Compatibility Testing and Measurement Techniques - Power Quality Measurement Methods"

IEC61000-4-7:2002 "Electromagnetic Compatibility Testing and Measurement Techniques - Measurement and Use Guidelines for Harmonics and Mutual Harmonics - Connection of Power Systems and Equipment"

GB/T14537-93 "Shock and collision tests for measuring relays and protective devices"

GB6162-85 "Electrical Interference Test for Electrostatic Relays and Protection Devices"

GB/T13730-1992 "General Technical Conditions for Data Collection and Monitoring System of Regional Power Grid"

GB/T16435.1-1996 "Remote control equipment and system interfaces (electrical characteristics)"

GB7450-1997 "Guidelines for Lightning Strike on Electronic Equipment"

GB9813 General Technical Specifications for Micro Digital Electronic Computers

GB2887-1992 "Technical Requirements for Computer Field"

GB/T 19862-2005 General Requirements for Power Quality Testing Equipment

GB6833.1-6833.10-1987 "Electromagnetic Compatibility Test Specification for Electronic Measuring Instruments"

GB14287-2005 "Electrical Fire Monitoring System"

DL476-92 "Application Layer Protocol for Real time Data Communication in Power Systems"

DL/T448-2000 Technical Management Regulations for Electric Energy Metering Devices

DL/T52020-2004 "Technical Code for Design of Electric Energy Metering System"

DL/T645-2007 "Communication Protocol for Multi functional Energy Meters"

DL/T614-2007 "Multifunctional Energy Meter"

DL/T52020-2004 "Technical Code for Design of Electric Energy Metering System"

DL/T645-2007 "Communication Protocol for Multi functional Energy Meters"

DL/T614-2007 "Multifunctional Energy Meter"

1.3 System Composition

This plan adopts a three-layer structure, including: monitoring management layer, network layer, and on-site measurement and control layer.

The monitoring management layer consists of two monitoring hosts, which simultaneously implement power monitoring, energy management, and electrical fire monitoring functions. The backbone of the network layer adopts a fiber optic ring network topology structure to ensure the reliability of information transmission. The on-site measurement and control layer mainly consists of electrical fire detectors, power measuring instruments, and water meters. The system forms an energy management system with on-site monitoring, data transmission, and centralized monitoring.

1Monitoring management layer: The entire energy management system is equipped with two sets of monitoring hosts: one set is installed in the negative first floor distribution duty roomSCK680-G256The electrical fire monitoring equipment consists of two sets of monitoring hosts installed in the first floor fire control center, which achieve the same functions of power monitoring, alarm, automatic meter reading of electrical energy, and automatic meter reading of water volume. And set multi-level user permissions to achieve different levels of operation for different accounts. Two sets of monitoring equipment are respectively connected to the network layer through the communication cabinet of the weak current room on the negative first floor of the main building and the podium.

2. Network layer:A network is composed of various communication devices and communication media to achieve data exchange between the system management layer and the on-site measurement and control layer devices.The main projectOnline procurementuseFiber optic ring networkThe connection of downstream measurement and control layer equipment adoptsRS-485Bus structure, communication equipmentIncluding communication management machine, industrialring networkSwitches, fiber optic transceivers, optical cables, communication cables, etc.

3. On site measurement and control layer:Installed on-siteElectrical fire detectors, power measuring instrumentsandMeasuring water meters, etcDevice composition, realizing functions such as measurement, monitoring, communication, and control. Based on the measurement, control, and communication functions of on-site measurement and control layer equipment, the system can achieveRemote telemetry, remote signaling, remote control, remote adjustment, etcFunction.

1.4 Introduction to System Functions

1.4.1 Power monitoring function

Telemetry: Supports the display mode of primary power distribution diagrams, real-time collection and display of electrical parameters such as current, voltage, power, and power factor of high and low voltage circuits.

1.4.2 Interconnection with High Voltage System

System interconnection, when other types of automation systems provide standardsOPCThe interface or standard protocol forwarding function enables data sharing, and the system can be interconnected with other automation systems.

At the request of the customer, the system needs to be interconnected with the high-voltage system, and the high-voltage system needs to provide an Ethernet interface with a protocol ofModbus-TCPor104Regulations or standardsOPCinterface

1.4.3 Remote meter reading function

Automatic meter reading of metering devices such as water meters and electric meters between floors, storage and processing of collected data, and generation of various statistical reports, such as daily reports, monthly reports, quarterly reports, annual reports, compound rate reports, etc., to facilitate users to grasp energy consumption status and settle fees.

1.4.4 Electrical Fire Monitoring Function

Real time monitoring of residual current and temperature in each circuit by the systemvalue，And display detailed circuit name and number content on the main interface, supportingAlarm for residual current and temperatureRemote transmission of values and various circuit information and statussetfixed.

When an alarm occurs in the circuit, the system emits an audible and visual alarm signal, and at the same time, the interface shows a significant color change, and automatically records detailed sequence of events. The retention period of event records≥24Months for easy traceability.

1.5 Network Structure

The overall network of this scheme is laid out according to the ring network structure, and the redundant ring network structure can ensure high reliability of the network and convenience of fiber optic laying.

All network collection nodes are configured according to the distribution of strong electric wells, and each network collection node is composed of a communication management machine, an industrial ring network switch, a network communication cabinet, etc. This plan is located on the basement three and basement one of the main building,25Layer,40The weak point well next to the strong electric well on the first and third floors of the podium building is set up9A network collection node, this9A network node is connected through a fiber optic ring network. The actual layout of network equipment on each floor is as follows.

Part of the podium networkThe podium is negativefirst floorInstallation of network collection nodes1Taiwan Communication Management Machine and1Taiwan ring network switch, podium building1Layer to4Power metering instruments on the floor, podium building1Layer to4Floor, podium roof, and negativefirst floorSome electrical fire detectors are connected to the communication management machine; Skirt building negative threelayerInstallation of network collection nodes1TaiwanS3100C8E2Communication management machine and ring network switch, connected to negative twolayerNegative threelayerPartial electrical fire detectors achieve centralized data collection and network forwarding transmission.

The above ground network of the main buildingThe main building has55There are two strong electric wells on each floor, and the plan is set in the main building25Layer and40Layer establishment4A network collection node,11to30Connection of electrical fire detectors and metering water meters on the floor25The collection nodes of the layer,31Electrical fire detectors and metering water meters connected to the roof level40The collection nodes of the layer are installed in total4Taiwan Communication Management Machine4Taiwan Ring Network Switch and4Network communication cabinet.

Besides, in25Floor distribution room and40An additional communication management machine will be added to the distribution room, which will be connected to all electrical fire detectors and instruments in the corresponding distribution room circuits. These two communication management machines are connected throughTCP/IPThe network form is laid out in the switch of the network collection node on the floor where it is located.

Underground network of the main building, negativeoneEach of the network collection nodes in the third layer and the negative layer is equipped with a communication management machineoneThe layer communication management machine is connected to the electrical fire detectors in each distribution box of the layer where the negative first and negative second layers are located. In addition, the negative first layer communication management machine is also connected to1-10Electrical fire detectors and metering water meters on the floor; The communication management machine on the negative third floor is connected to the electrical fire detectors in each distribution box on this floor.

At the same time, in negativeoneInstall a communication management machine in the main substation to connect all electrical fire detectors and monitoring instruments within the substation. Ultimately, the communication management machine will be used toTCP/IPNegative network accessoneRealize the networking of the entire system in the layer weak current well switch.

1.6 Selection of Monitoring and Management Equipment

Monitoring the management teamtwosetThe monitoring server runs simultaneously to achieve data collection, monitoring, and control of the entire systemdataWhen dealing with storage and other issues, any server failure does not affect the normal operation of another server, ensuring the reliability of the overall system and the integrity of data.

1.6.1 SCK680-G256 Monitoring Host

SCK680-G256 electrical fire monitoring equipment, equipped withRS485andTCP/IPNetworking channel, capable of connecting no less than1024A network of detectors is used for centralized monitoring of parameters such as faults and alarm signals*GB14287.1-2005Standard, and this system has passed the inspection of the National Fire Electronic Product Quality Supervision and Inspection Center3C mandatory certification.

The monitoring device supports one key start and shutdown operations, and the device hasTwo TCP/IP network interfaces can be used to directly connect to on-site detectors in a network manner to read relevant data. At the same time, operators can log in to the system with a password to dynamically modify the system's relevant circuit parameters, alarm settings, and remote reset functions. The device is equipped with a built-in voice alarm and embedded micro printer, which can provide sound and light alarms and print all system faults and alarm information.

1.6.2 Monitoring Server

Located in the Fire Control CenterAll monitoring servers use server computers with large storage capacity and high-speed processing performanceIn addition, there is also a printer available for printing user reports.

1.6.3 Electrical Fire Detector

The electrical fire detector is installed in the local distribution cabinet and the electrical well distribution box to measure the residual current, temperature, and power parameters of each circuit. In this projectSCK600Series detectors; Equipped with one residual current, three temperature channels, full power parameters, and energy metering functions, it enables simultaneous electrical fire monitoring, power monitoring, and energy metering functions in the case of installing one device in some circuits.

Part Two System functions

Function of power monitoring module

2.1 System operation monitoring

The system collects data from all devices on site through a round robin method. In the main interface of the system, according to the distribution system diagram, real-time data collection and display of electrical parameters such as current, voltage, power, and power factor of high and low voltage circuits are carried out. Equipped with various display colors to distinguish the opening and closing status display and provide sound and light alarm prompts.

2.2 Remote Control and Parameter Setting

Remote control of circuit opening and closing, protection on/off settings, and adjustment of alarm protection parameters can be achieved; And conduct event analysis and fault recording data analysis on alarm or trip circuits, identify the causes of alarms or trips, provide various alarm and fault displays for operators, and prompt potential fault hazard reports for the system, providing effective guarantees for the safe operation of the system.

2.3 Analysis of Load Trend Curve

The trend curve system can continuously monitor the operating parameters of equipment in real time, such as power load and waveform capture at the moment of fault occurrence, helping users dynamically analyze the historical changes of various data, and providing strong data basis for management personnel to predict the parameter changes and future trends of the power supply system during a certain period of time.

2.4 Event RecordingAnd inquiry

Real time monitoring of various status event information such as alarm status, trip status, and switch displacement status of each circuit, issuing obvious sound and light alarms for alarm and trip monitoring events, and recording all events that occur in the system to provide data support for operators to conduct detailed analysis.

2.5 Graphic Analysis Management

The system can generate various dynamic image systems for operation statistics, such as voltage bar charts, pie charts, and phase angle charts, which can graphically analyze real-time changes in various power grid parameters (such as unbalance, phase angle, etc.); And it can set alarm and trip limits for sensitive power parameters that affect the normal operation of the system load, issue alarms in advance or automatically send trip output control to ensure the reliability of the system.

2.6 Real time data report

The real-time reporting system provides a unified table mode for real-time display of data and status in the running system, which can dynamically compare and monitor various circuits in real time. Real time reporting supportsEXCELExport data in a format that facilitates secondary processing.

2.7 Historical Data Report Query

The historical report system can provide various types of historical data report queries, such as daily reports, quarterly reports, monthly reports, annual reports, etc. It can query various historical data such as current, voltage, power load, and energy measurement, generate various statistical data, and provide data support for user measurement statistics, internal consumption analysis, and other needs.

2.8 Third party device access

The system supports various communication protocols such as serial ports and Ethernet buses, and can perform low-level development and design for non-standard protocols to facilitate device access and integration, such as microcomputer protection devices from various manufacturers, DC screen controllers, transformer temperature controllers, intelligent simulation screens, reactive power compensation controllers, water and gas metering devices, etc., achieving centralized and unified monitoring.

2.9 System Interconnection

Provide standards for other types of automation systemsOPCThe interface or standard protocol forwarding function enables various data uploads and sharing, providing a unified scheduling interface for the higher-level scheduling system.

2.10 System Security

Multiple user levels and corresponding operation permissions can be set. The control operation has strict password protection requirements and different permission restrictions are imposed on different operators. When modifying alarm parameters, the system automatically verifies the operator's permissions and password. Only operators with operational permissions have the authority to modify operations after entering the correct password.

Electrical fire module function

2.11 Real time monitoring of residual current

Real time monitoring of residual current and temperature in each circuit by the systemvalue，And display detailed circuit names, numbers, and various functional buttons on the main interface.

2.12 Residual current alarm setting and prompt

systemsupportAlarm for residual current and temperatureRemote transmission of values and various circuit information and statussetfixed.When an alarm occurs in the circuit, the system emits an audible and visual alarm signal, and at the same time, the interface shows a significant color change, and automatically records detailed sequence of events. The retention period of event records≥24Months for easy traceability.

2.13 Alarm and Fault Records

systemequipspecialuseThe Historical DatabaseprovideHistorical alarm records and historical fault recordsUsers can access, query, and print at any time through the report interface. Users with advanced privileges or above can delete records one by one or all by themselves.

2.14 Alarm Printing

Monitoring equipment equipped with micro printers, can automatically/Manually print alarmsFault information.Support setting as alarm through the settings interface/Automatically print information when a malfunction occurs.

2.15 Historical trend curve of residual current data

The system supports querying the remaining current and temperature data stored in history in a curve based manner, and queries the time intervalAnd the circuitCan be dynamically set. The interface can reflect in real-time the range of changes in residual current or temperature during any given time period.

2.16 Equipment status information display

The system can display real-time various status information (power supply status, equipment fault status, alarm status, and the working status of all communication devices) and monitorequipmentThe indicator lights remain synchronized for display.

2.17 System Fault Self Inspection

The monitoring equipment displays the real-time operation status of various internal functional modules and has a fault self diagnosis function. At the same time, it displays the cause of the fault in real time on the system interface and judges the communication status of detectors in each area in real time. It intelligently self checks the faults of the entire system.

2.18 User Rating Management

The system is divided into three levels of permission management, and different operations require corresponding permission levels to prevent misoperation and illegal entry.

2.19 System Operation Information

The system has an independent information window that records all operational information of the device after it has started running, facilitating comprehensive judgment of the current status of the operating system.

2.20 Technical performance indicators of power monitoring module

System capacity: >10000point

System availability: ≥99.9%

Average server load rate: ≤20%

Average network load rate: ≤10%

Comprehensive measurement error within the station: ≤0.5%

Monitor screen call response time: <2second

Dynamic data refresh: <3second

Alarm occurrence to output: <2second

Host database refresh: <1second

Measurement voltage accuracy: ≤0.2%

Measurement accuracy of current: ≤0.2%

Measurement accuracy of active power: ≤0.5%

Measurement accuracy of reactive power: ≤0.5%

Measurement frequency accuracy: ≤0.02Hz

Accuracy of measuring active electricity: ≤1%

Accuracy of reactive power measurement: ≤2%

Remote control resolution: ≤100millisecond

Control command to output time: ≤1second

Remote signal displacement transmission time: ≤2second

Event recording accuracy: ≥99.9%

Accuracy of remote signaling: ≥99.9%

Remote control accuracy: ≥99.9%

Real time data refresh time: ≤2second

System average * time: 50000hour