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Typical 10KV Substation Secondary wiring diagram of relay protection
This drawing is the secondary wiring diagram of typical 10KV substation relay protection; The contents include: used panel diagram, DC panel diagram, watt hour meter panel wiring diagram, central panel wiring diagram, equipment layout plan, etc; This drawing is standard in design and detailed in content; For reference!
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Substation Improvement of engineering cable laying and secondary wiring process
In the process of substation construction, cable laying and secondary wiring is an important and meticulous work, and the quality of its construction has a great impact on the construction quality of the overall project. In order to avoid some conventional problems existing in the past construction, a series of improvement measures have been taken for each link in the construction process to strengthen the control of each link from construction planning to process control, so as to avoid problems such as cable crossing, unreasonable direction and arrangement, and rework. At present, the cable laying and secondary wiring construction of the substation project have made great progress in terms of the cable direction, the rationality of the arrangement, and the aesthetics of the process, thus improving the construction quality of the overall project.
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To be designed for the electrical part of 110KV step-down substation. After completion, the substation will mainly supply power to the factories in the industrial zone. The voltage level of the substation is 110/35KV. There are two 110KV incoming lines and nine 35KV outgoing lines in the substation. The annual average temperature of the area is 14 ℃, the highest temperature is 39 ℃, and the lowest temperature is - 20 ℃. The outgoing line corridor of the substation is wide, the terrain is flat, the air is free of special pollution, and the transportation is convenient. The maximum load hours T=5600 hours, the load simultaneity factor is 0.92, and the line loss rate is 5%. Important load accounts for 65%. All generators in the system are steam
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10kv Substation Secondary electrical design cad drawings
Secondary complete drawings of the substation, including: panel installation layout, network communication diagram, AC voltage terminal wiring diagram, DC voltage and public signal wiring diagram, line protection, capacitor protection, voltage parallel device, panel top bus layout and other 10KV line protection measurement and control, panel main transformer panel electrical drawings.
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This design is the preliminary design of Wuzhong secondary substation electrical engineering (part). It mainly includes the selection of electrical equipment, comparison of main wiring, short circuit calculation, distribution device layout and lightning protection. Among them, the main electrical connection is the most important part in the electrical design. Through the comparison of the economy, reliability, advantages and disadvantages of the two main connections, the main connection most suitable for the requirements of the Institute is obtained; Short circuit calculation is the basis of equipment selection. Network transformation, selection of short circuit points, and calculation of component parameters need to be rigorous and careful at every step, without any carelessness, or it may cause extreme damage to equipment selection
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According to the design specification, the position and construction scale of the 66kV substation in the power system are analyzed, and the best scheme of the main wiring is determined by considering the reliability, flexibility and economy of the substation operation, and through technical and economic comparison and comprehensive demonstration. This design mainly includes the selection of 10kV outgoing line, the capacity, number and type of main transformer, the selection of electrostatic compensation capacitor, the calculation of short circuit current and tabulation summary, the selection and verification of main electrical equipment, including circuit breaker, disconnector, current transformer, voltage transformer, lightning arrester, bus, 10kV high-voltage switchgear, etc., the design of power distribution equipment, Relay protection of main components
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This design is the electrical engineering design of Dezhou Secondary Substation, which is required to provide long-term reliable power supply for its load. In the design process, the national laws and regulations shall be followed, the national economic construction guidelines, policies and capital construction procedures shall be implemented, the relationship between production and life, safety and economy shall be correctly handled from the overall situation by using the system engineering method, the comprehensive utilization of resources shall be implemented, energy and land shall be saved, and the production process, main equipment and main works shall be reliable Applicable and advanced. On the basis of the above principles, define the purpose of design, and gradually complete the selection of main transformer, the preparation of electrical main wiring, short circuit power, etc
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Hangzhou 220 kV Substation Construction organization design
The project is designed to be composed of several single buildings and many outdoor and underground projects. Including the main control building, local relay room and "SP" foam spray room, 35kv indoor power distribution device capacitor building, total accident oil pool, rainwater pump well, enclosure, gate and other buildings (structures) and landscaping. The highest building height is 13.55m, the deepest foundation pit is 3.5m below the natural ground, and the highest building height is 5.75m. Building decoration, exterior wall oil multifunctional waterproof coating, interior wall latex paint, building floor electrostatic floor, roof red tiles and other new building decoration. The roof waterproof is a composite waterproof roll.
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Some high voltage Substation Design cad electrical secondary schematic diagram
This drawing is the secondary electrical schematic diagram of a high voltage substation design cad, including the secondary schematic diagram of the high voltage part, the secondary schematic diagram of the low voltage part, the wiring terminal block diagram, the list of components, the schematic diagram of the loop network high voltage supply and low voltage meter system, etc; The design of this drawing is professional and standard, with detailed contents, which can be used for reference.
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Substation Secondary Principle CAD Reference Drawing of Electrical System
This project is a CAD reference drawing of the secondary principle of the substation electrical system, including the schematic diagram of the high-voltage PT cabinet, the schematic diagram of the high-voltage metering cabinet, the schematic diagram of the high-voltage incoming cabinet, etc. The content of the drawing is complete, the expression is clear, and the drawing is rigorous. Designers are welcome to download and use it.
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The main electrical wiring of the substation is an important part of the power system wiring. The main electrical connection is a general circuit that is connected by main electrical equipment (such as generators, transformers, switches, mutual inductors, lines, capacitors, reactors, buses, lightning arresters, etc.) according to certain sequence requirements, distributes and transmits electric energy, and draws the electrical connection diagram of various electrical equipment in the circuit with uniformly specified graphical symbols and text symbols, It is called the main electrical wiring diagram. The distribution of electric energy is the distribution system diagram. Draw up a reasonable main electrical connection scheme, not only with the reliability of the operation of the overall substation of the power system itself, the selection of electrical equipment
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This design is the electrical engineering design of Xicheng secondary step-down substation. The description includes the selection of 10kV conductor section and relevant calibration of conductors, the selection of transformers, reactive compensation, the selection of electrical main wiring, short circuit current calculation, the selection and calibration of electrical equipment, the planning and design of power distribution equipment, and the planning and design of lightning protection for relay protection configuration. The reliability and economy of power supply are fully considered in the design and selection of equipment. In addition, the selection of models of various circuit breakers, disconnectors and current transformers should be considered together with the layout of high-voltage distribution devices. The calculation sheet includes the calculation of the capacity of the main transformer
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This design is a description of the electrical design scheme of Changtan 60/10KV secondary step-down substation. The specification includes the analysis of the original design conditions, the selection of transformers, the selection of electrical main wiring, short circuit calculation, the selection and calibration of various electrical equipment, the planning and design of high-voltage distribution equipment, and the planning and design of lightning protection, Planning and design of substation relay protection and automatic devices. Reliability, flexibility and economy are fully considered in the design and selection of equipment. In addition, the selection of models of various circuit breakers, disconnectors and current transformers should be considered together with the layout of high-voltage distribution devices. Calculation sheet part package
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This design is the preliminary design of Nanling step-down substation electrical engineering (part). The substation to be designed is a regional public substation with a voltage level of 60KV/10KV. There are two incoming lines on the 60KV side, two slewing power supply lines and 13 outgoing lines on the 10KV side. The design requires that the power factor of the substation should be above 0.9, the voltage deviation at the entrance of all users' 10KV lines should be 5%, and the voltage loss should not exceed 8%. Selection of electrical equipment at 60KV side: transformer, disconnector, high-voltage circuit breaker, bus, voltage transformer, current transformer, lightning arrester. 10KV side power
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This design is the preliminary design for the electrical part of Huanbei 60kV secondary step-down substation, and the designed substation is required to supply power for its load reliably for a long time. In the design process, the national laws and regulations shall be followed, the national economic construction guidelines, policies and capital construction procedures shall be implemented, the relationship between production and life, safety and economy shall be correctly handled from the overall situation by using the system engineering method, the comprehensive utilization of resources shall be implemented, energy and land shall be saved, and the production process, main equipment and main works shall be reliable Applicable and advanced. On the basis of the above principles, define the purpose of design, and gradually complete the selection of main transformer, electrical main connection
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This design is the electrical part design of 60KV secondary step-down substation. The main content of this paper is divided into two parts to introduce the design description and calculation respectively. The description part mainly includes: selection of main transformer, determination of main electrical connection, calculation of short circuit current, selection of electrical equipment, planning and design of distribution equipment, planning of relay protection and automatic device, and lightning protection configuration. In the calculation part, the selection of main transformer, calculation of short-circuit current, selection of electrical equipment and calculation of lightning rod are introduced in detail, and substation drawings are drawn. According to the substation design regulations, the designed substation should meet the reliability, economy and flexibility of power supply
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This design is the electrical engineering design of Hangwan 220KV secondary step-down substation. It is required that the designed substation can reliably supply power for its load for a long time. During the design process, the national laws and regulations shall be followed, the national economic development plan, policies and basic construction procedures shall be implemented, and the system engineering method shall be used to correctly handle production and life The relationship between safety and economy, the comprehensive utilization of resources, the conservation of energy and land, and the reliability, applicability and advancement of production processes, main equipment and main works. On the basis of the above principles, clarify the purpose of the design institute, and gradually complete the selection of main transformer, electrical main connection
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some Substation Cad drawing of secondary electrical design scheme
This drawing is a cad drawing of the secondary electrical design scheme of a substation, which includes the equipment layout of the central signal panel, the schematic diagram of the secondary wiring of the power transformer, etc. The contents are detailed and can be used for reference.
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66KV Substation Secondary schematic diagram (complete set)
This document is the secondary schematic diagram (complete set) of a 66KV substation, which includes:, Secondary terminal diagram of outgoing cabinet ， Secondary terminal diagram of capacitor cabinet , and other contents are detailed and complete, which can be downloaded by designers for reference.
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some Substation CAD layout of secondary system
This project is a CAD layout of the secondary system of a substation, including the AC power supply system, DC operating power supply system, secondary circuit of the power incoming cabinet, secondary circuit of the transformer cabinet, etc. The contents of the drawings are complete, clear and precise, and designers are welcome to download and use them.
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Substation Cad drawings for secondary circuit design
This data is the CAD drawing of the secondary circuit design of the substation. The data content includes the wiring schematic diagram of the main protection unit of the double winding transformer for reference and is worth downloading by the designer
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This design is a relay protection design of a secondary substation. The whole design details the most basic requirements and principle basis for the selection of various equipment. Overview of relay protection: principle and task; Relay protection of transformer: determination and setting of main technical data such as principle and protection scheme configuration; Line protection: setting of double circuit line and single circuit line. Short circuit current calculation is the most important link. This design introduces in detail the purpose of short circuit current calculation, assumptions, general regulations, calculation of component parameters, and calculation of each short circuit point; According to the selection principles and requirements of current transformer and voltage transformer
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Substation Reliability analysis of main electrical connection
The main electrical connection of substation is a kind of electrical connection to realize the transmission and distribution of electric energy. Its fundamental task is to provide power to various users economically and reliably as far as possible. Therefore, whether to cut off power to users is often regarded as a major statistical evaluation standard. In this paper, the minimum cut set algorithm based on the component state space is used to quantitatively analyze the reliability of the main electrical wiring in the substation, which provides an effective evaluation basis for the reasonable selection of the main wiring scheme.
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10KV in a mall Substation Wiring CAD drawing
This data is a CAD drawing of 10KV substation wiring in a shopping mall, which includes design instructions, equipment and materials list, 10/0.4KV distribution system wiring diagram, electrical distribution section diagram, etc. The content is detailed and can be downloaded by designers for reference.
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Some 6KV Substation Secondary wiring DC panel layout CAD node diagram
The CAD node diagram of the secondary wiring DC screen layout of a 6KV substation is a complete plan of the CAD plan and elevation details and renderings. The individual buildings are consistent with the general layout, and the corresponding relationship between them is accurate. There are no errors, omissions, and flaws in the drawings. Welcome to download.
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Construction organization of 110 kV power transmission and transformation project
Substation building, installation, commissioning works (including fire civil engineering, image monitoring and safety protection system, telecontrol system), termite prevention, safety, health and environmental protection production and installation, etc. within the scope of construction drawings. The construction works include but are not limited to large-scale earthwork, site leveling, temporary works (including temporary construction power supply, water source and roads), slope protection, retaining wall, enclosure, flood control and drainage, access road, relocation of Pingding Station, transportation of foundation trench surplus soil, with a transportation distance of 20km, etc, The scope of this bidding does not include fire protection works (equipment and pipes in the pump room, fire alarm, main transformer water spray, gas fire protection), greening works, 10kV insulated copper tube bus installation, microcomputer five prevention system and remote control system (outside the station). The specific bidding scope shall be in accordance with the construction drawings. This document is the construction organization design of 110 kV power transmission and transformation project, totaling 103 pages.
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