备用发电机与转换开关
市电和发电机进线、自动转换开关、保障和非保障负荷配电箱、控制器和各类表格。
可免费用于自己的项目并自由修改，包括商业项目。ZIP 内含样图、样板、打印样式表和说明文件，无需安装任何插件。图中数据均为虚构，不能用于设计或施工。按现状提供，不附带任何保证。 符号库使用条款(CXL-1.0)
本样图用到的资源
图中的符号都是我们自己符号库里的块，属性已经填好；图框和标题栏来自我们的 ISO A3 标题栏模板。下载它们，就能画出你自己的图。
系列里所有图纸的图层、样式和图纸设置都一样，说明放在系列页： 供电单线图
标题栏字段
标题栏的属性。
| 属性 | 图纸上的字段 | 本样图中的值 |
|---|---|---|
| COMPANY | COMPANY | CADXChange |
| PROJECT | PROJECT | Northgate Office Building |
| AREA | AREA | Main switchroom |
| SYSTEM | SYSTEM | 400 V / 50 Hz |
| CLIENT | CLIENT | Sample |
| TITLE | DRAWING TITLE | Standby generator and transfer switch, single line |
| DRAWING_NO | DRAWING NO. | E-821 |
| CONTRACT_NO | CONTRACT NO. | — |
| REV | REV | A |
| DRAWN | DRAWN | — |
| CHECKED | CHECKED | — |
| APPROVED | APPROVED | — |
| DATE | DATE | 2026-11-01 |
| SCALE | SCALE | NTS |
| SHEET | SHEET | 1 |
| OF | OF | 1 |
修订表：R1 到 R4，每行有 REV、DATE、DESCRIPTION 和 BY（共 16 个属性，本样图中为空）。
图中的块
这张图的设备清单：块名、符号和放置次数。
| 符号 | 块名 | 数量 |
|---|---|---|
 塑壳断路器 | PWR_LV_MCCB | 9 |
 异步电动机 | PWR_MOTOR_IM | 3 |
 负载（静态） | PWR_LOAD | 3 |
 电流互感器 | PWR_CT | 2 |
 电流表 | PWR_M_A | 2 |
 电力仪表，多功能 | PWR_M_PM | 2 |
 电网接入（系统电源） | PWR_GRID | 1 |
 柴油发电机组 | PWR_GEN_DIESEL | 1 |
 空气断路器 | PWR_CB_ACB | 1 |
 自动转换开关 | PWR_ATS | 1 |
 不间断电源（UPS） | PWR_UPS | 1 |
 照明负载 | PWR_LOAD_LIGHT | 1 |
 接触器 | PWR_CONTACTOR | 1 |
设备明细表
每个放置的符号一行，从图中块的属性读出：图纸上显示的内容，以及已经填好但不显示的明细表属性。
| 位号 | 说明 | 图纸上显示 | 已填写，不显示 |
|---|---|---|---|
| G1 | 电网接入（系统电源）PWR_GRID | RATING = 400 V | VOLTAGE_KV = 10 |
| QF1 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 630 A | VOLTAGE = 400 VBREAKING_KA = 50TRIP_UNIT = Thermal-magneticPOLES = 3 |
| TA1 | 电流互感器PWR_CT | RATIO = 630/5 A | CLASS = 0.5BURDEN_VA = 10CORES = 1RATED_KV = 0.72 |
| PA1 | 电流表PWR_M_A | RANGE = 630 A | ACCURACY_CLASS = 1INPUT = 5 AOUTPUT = Display |
| PM1 | 电力仪表，多功能PWR_M_PM | RANGE = kWh | ACCURACY_CLASS = 0.5INPUT = 5 A / 400 VOUTPUT = Modbus RTU |
| GS1 | 柴油发电机组PWR_GEN_DIESEL | RATING_MVA = 400 kVA | VOLTAGE_KV = 0.4POWER_FACTOR = 0.8SPEED_RPM = 1500EXCITATION = BrushlessCOOLING = Radiator |
| QF2 | 空气断路器PWR_CB_ACB | RATED_KV = 0.4 kV | RATED_CURRENT_A = 630BREAKING_KA = 36INTERRUPTER = AirMECHANISM = Motor-charged springCONTROL_VOLTAGE = 110 V DC |
| TA2 | 电流互感器PWR_CT | RATIO = 630/5 A | CLASS = 0.5BURDEN_VA = 10CORES = 1RATED_KV = 0.72 |
| PA2 | 电流表PWR_M_A | RANGE = 630 A | ACCURACY_CLASS = 1INPUT = 5 AOUTPUT = Display |
| PM2 | 电力仪表，多功能PWR_M_PM | RANGE = kWh | ACCURACY_CLASS = 0.5INPUT = 5 A / 400 VOUTPUT = Modbus RTU |
| ATS1 | 自动转换开关PWR_ATS | RATED_CURRENT_A = 630BREAKING_KA = 36INTERRUPTER = Air, 4 poleMECHANISM = Motorised, mechanically interlockedCONTROL_VOLTAGE = 230 V AC | |
| QF11 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 125 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| M1 | 异步电动机PWR_MOTOR_IM | POWER_KW = 45 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.85STARTING = Star-deltaSERVICE = Fire pump |
| QF12 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 80 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| M2 | 异步电动机PWR_MOTOR_IM | POWER_KW = 30 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.85STARTING = Star-deltaSERVICE = Smoke extract fan |
| QF13 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 100 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| U1 | 不间断电源（UPS）PWR_UPS | RATING = 40 kVA | VOLTAGE_KV = 0.4UNITS = 1 |
| QF14 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 100 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| EL1 | 负载（静态）PWR_LOAD | POWER_KW = 30 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.95SERVICE = Passenger lifts |
| QF15 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 40 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| EL2 | 照明负载PWR_LOAD_LIGHT | POWER_KW = 15 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.95SERVICE = Life safety lighting |
| KM1 | 接触器PWR_CONTACTOR | RATED_KV = 0.4 kV | RATED_CURRENT_A = 400BREAKING_KA = 10INTERRUPTER = AirMECHANISM = ElectromagneticCONTROL_VOLTAGE = 230 V AC |
| QF21 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 160 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| M3 | 异步电动机PWR_MOTOR_IM | POWER_KW = 90 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.85STARTING = Star-deltaSERVICE = Chiller |
| QF22 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 125 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| EL3 | 负载（静态）PWR_LOAD | POWER_KW = 60 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.95SERVICE = Air handling units |
| QF23 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 200 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| EL4 | 负载（静态）PWR_LOAD | POWER_KW = 80 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.95SERVICE = General power and lighting |
每个块的制造商、型号和备注都留空，等你填入自己的数据。表中的值都是示例。
