電力系統成套設備是指由殼體、母線、一二次元件、輔材等組成的完整設備，它在電網中扮演著關重要的角色。以下是關于電力系統成套設備的詳細解釋：

　　Complete equipment of power system is a complete equipment composed of shell, bus, primary and secondary components, auxiliary materials, etc. It plays a vital role in the power grid. The following is a detailed explanation of the complete set of equipment for the power system:

　　一、定義與功能

　　1、 Definition and Function

　　定義：電力系統成套設備是制造廠成套供應的設備，由制造廠預先按照主接線的要求，將每一回路的電氣設備高低壓電器（包括控制電器、保護電器、測量電器，如斷路器、隔離開關、互感器等）以及母線、載流導體、絕緣子等，裝配在封閉或半封閉的金屬柜中，構成單元電路分柜，此單元電路分柜即為成套配電裝置。

　　Definition: A complete set of power system equipment is a set of equipment supplied by a manufacturing plant. The manufacturing plant assembles the high and low voltage electrical equipment (including control devices, protection devices, measuring devices such as circuit breakers, isolating switches, transformers, etc.), busbars, current carrying conductors, insulators, etc. of each circuit in a closed or semi closed metal cabinet according to the requirements of the main wiring in advance, forming a unit circuit cabinet. This unit circuit cabinet is the complete distribution device.

　　功能：

　　Function:

　　接受與分配電能：成套設備在電網中負責接受和分配電能，確保電力供應的穩定性和可靠性。

　　Receiving and distributing electrical energy: The complete set of equipment is responsible for receiving and distributing electrical energy in the power grid, ensuring the stability and reliability of power supply.

　　控制與保護電力設備：通過對電力設備的控制和保護，成套設備能夠確保電力系統的運行，防止設備損壞和事故發生。

　　Control and protection of power equipment: By controlling and protecting power equipment, complete sets of equipment can ensure the safe operation of the power system, prevent equipment damage and accidents.

　　二、分類與組成

　　2、 Classification and Composition

　　分類：

　　Category:

　　根據電壓等級，電力系統成套設備可分為低壓開關柜（如0.4kV、0.69kV、1.2kV等）、中壓開關柜（如3.6kV、7.2kV、12kV、24kV等，目前為發展趨勢）、高壓開關柜（如40.5kV等）。

　　According to voltage levels, complete sets of power system equipment can be divided into low-voltage switchgear (such as 0.4kV, 0.69kV, 1.2kV, etc.), medium voltage switchgear (such as 3.6kV, 7.2kV, 12kV, 24kV, etc., which is currently a development trend), and high-voltage switchgear (such as 40.5kV, etc.).

　　根據用途，還可分為動力箱（柜）、照明箱、控制箱（柜、臺）、保護屏、直流屏等多種類型。

　　According to their purposes, they can also be divided into various types such as power boxes (cabinets), lighting boxes, control boxes (cabinets, platforms), protective screens, DC screens, etc.

　　組成：

　　form:

　　一次元件：包括母線、隔離開關（高壓）、刀開關（低壓）、斷路器（空氣開關）、電壓互感器、電流互感器、電力變壓器等，這些元件承載高電壓或大電流，是電力系統的核心部分。

　　Primary components: including busbars, isolating switches (high voltage), knife switches (low voltage), circuit breakers (air switches), voltage transformers, current transformers, power transformers, etc. These components carry high voltage or high current and are the core part of the power system.

　　二次元件：包括測量儀表（如電流表、電壓表等）、控制信號元件（如信號燈、按鈕等）以及繼電保護裝置等，它們構成了一套完整的監控與控制系統，確保一次系統的可靠運行。

　　Secondary elements: including measuring instruments (such as ammeters, voltmeters, etc.), control signal elements (such as signal lights, buttons, etc.), and relay protection devices, which constitute a complete monitoring and control system to ensure the safe and reliable operation of the primary system.

　　三、結構與特點

　　3、 Structure and Characteristics

　　結構：成套設備的柜體結構多樣，包括固定式、移開式（手車式）等。移開式開關柜具有檢修方便、恢復供電時間短的優點，其小車上的電器元件可以方便地拉出柜體進行檢修或更換。

　　Structure: The cabinet structure of the complete set of equipment is diverse, including fixed and movable (handcart type). The movable switchgear has the advantages of easy maintenance and short power restoration time. The electrical components on the trolley can be easily pulled out of the cabinet for maintenance or replacement.

　　特點：

　　characteristic:

　　智能化：現代成套設備通常配備智能監控和保護系統，能夠實時監測電力系統的運行狀態并進行故障預警和保護。

　　Intelligence: Modern complete sets of equipment are usually equipped with intelligent monitoring and protection systems, which can monitor the operating status of the power system in real time and provide fault warning and protection.

　　模塊化：成套設備采用模塊化設計，便于組裝和擴展，滿足不同規模和需求的電力系統。

　　Modularization: The complete set of equipment adopts modular design, which is easy to assemble and expand, and meets the needs of power systems of different scales and requirements.

　　高可靠性：通過采用高質量的材料和的制造工藝，成套設備具有高可靠性和長壽命。

　　High reliability: By using high-quality materials and advanced manufacturing processes, the complete equipment has high reliability and long lifespan.

　　四、技術參數與防護

　　4、 Technical parameters and safety protection

　　技術參數：包括額定電壓、額定絕緣水平、額定頻率、額定電流、額定短時耐受電流等，這些參數是評估成套設備性能的重要指標。

　　Technical parameters: including rated voltage, rated insulation level, rated frequency, rated current, rated short-time withstand current, etc. These parameters are important indicators for evaluating the performance of complete equipment.

　　防護：成套設備通常具有五防功能，即防止誤分誤合斷路器、負荷開關、接觸器；防止帶負荷分、合隔離開關；防止誤入帶電隔室；防止帶電掛接地線；防止帶接地線送電。這些功能確保了操作人員的和設備的可靠運行。

　　Safety protection: Complete sets of equipment usually have five prevention functions, which are to prevent accidental opening and closing of circuit breakers, load switches, and contactors; Prevent the opening and closing of isolation switches with load; Prevent accidental entry into electrified compartments; Prevent hanging grounding wires when live; Prevent power transmission with grounding wire. These functions ensure the safety of operators and the reliable operation of equipment.

　　綜上所述，電力系統成套設備是電力系統中不可或缺的重要組成部分，具有接受和分配電能、控制與保護電力設備等多種功能。通過了解其分類、組成、結構與特點以及技術參數與防護等方面的知識，可以更好地理解和應用這些設備，確保電力系統的穩定運行。

　　In summary, the complete set of equipment in the power system is an indispensable and important component, with multiple functions such as receiving and distributing electrical energy, controlling and protecting power equipment. By understanding their classification, composition, structure and characteristics, as well as technical parameters and safety protection, one can better understand and apply these devices to ensure the safe and stable operation of the power system.

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