屋顶光伏，52.8 kWp
六个组串、直流母线、隔离开关和浪涌保护、逆变器、并网保护、计量和 400 V 总配电箱。
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 | Roof and main switchroom |
| SYSTEM | SYSTEM | 400 V / 50 Hz |
| CLIENT | CLIENT | Sample |
| TITLE | DRAWING TITLE | Rooftop photovoltaic system, single line |
| DRAWING_NO | DRAWING NO. | E-831 |
| 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 |
|---|---|---|
 光伏阵列 | PWR_GEN_PV | 6 |
 低压熔断器 | PWR_LV_FUSE | 6 |
 塑壳断路器 | PWR_LV_MCCB | 6 |
 电涌保护器（SPD） | PWR_LV_SPD | 2 |
 保护接地 | PWR_EARTH_PE | 2 |
 电流互感器 | PWR_CT | 2 |
 电力仪表，多功能 | PWR_M_PM | 2 |
 负载（静态） | PWR_LOAD | 2 |
 隔离开关（低压） | PWR_LV_ISOLATOR | 1 |
 逆变器（直流变交流） | PWR_INVERTER | 1 |
 频率继电器（81） | PWR_R_81 | 1 |
 电网接入（系统电源） | PWR_GRID | 1 |
 异步电动机 | PWR_MOTOR_IM | 1 |
 照明负载 | PWR_LOAD_LIGHT | 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 |
|---|---|---|---|
| PV1 | 光伏阵列PWR_GEN_PV | VOLTAGE_KV = 0.82UNITS = 20 modules in series | |
| F1 | 低压熔断器PWR_LV_FUSE | RATED_CURRENT_A = 20 A | VOLTAGE = 1000 V DCBREAKING_KA = 30TRIP_UNIT = gPVPOLES = 1 |
| PV2 | 光伏阵列PWR_GEN_PV | VOLTAGE_KV = 0.82UNITS = 20 modules in series | |
| F2 | 低压熔断器PWR_LV_FUSE | RATED_CURRENT_A = 20 A | VOLTAGE = 1000 V DCBREAKING_KA = 30TRIP_UNIT = gPVPOLES = 1 |
| PV3 | 光伏阵列PWR_GEN_PV | VOLTAGE_KV = 0.82UNITS = 20 modules in series | |
| F3 | 低压熔断器PWR_LV_FUSE | RATED_CURRENT_A = 20 A | VOLTAGE = 1000 V DCBREAKING_KA = 30TRIP_UNIT = gPVPOLES = 1 |
| PV4 | 光伏阵列PWR_GEN_PV | VOLTAGE_KV = 0.82UNITS = 20 modules in series | |
| F4 | 低压熔断器PWR_LV_FUSE | RATED_CURRENT_A = 20 A | VOLTAGE = 1000 V DCBREAKING_KA = 30TRIP_UNIT = gPVPOLES = 1 |
| PV5 | 光伏阵列PWR_GEN_PV | VOLTAGE_KV = 0.82UNITS = 20 modules in series | |
| F5 | 低压熔断器PWR_LV_FUSE | RATED_CURRENT_A = 20 A | VOLTAGE = 1000 V DCBREAKING_KA = 30TRIP_UNIT = gPVPOLES = 1 |
| PV6 | 光伏阵列PWR_GEN_PV | VOLTAGE_KV = 0.82UNITS = 20 modules in series | |
| F6 | 低压熔断器PWR_LV_FUSE | RATED_CURRENT_A = 20 A | VOLTAGE = 1000 V DCBREAKING_KA = 30TRIP_UNIT = gPVPOLES = 1 |
| F7 | 电涌保护器（SPD）PWR_LV_SPD | RATED_CURRENT_A = Type 2 | VOLTAGE = 400 VBREAKING_KA = 25TRIP_UNIT = Type 1+2POLES = 3+N |
| PE1 | 保护接地PWR_EARTH_PE | EARTH_TYPE = Protective earth | RESISTANCE_OHM = 10 |
| QS1 | 隔离开关（低压）PWR_LV_ISOLATOR | RATED_CURRENT_A = 125 A | VOLTAGE = 1000 V DCTRIP_UNIT = Load breakPOLES = 2 |
| U1 | 逆变器（直流变交流）PWR_INVERTER | RATING = 50 kW | VOLTAGE_KV = 0.4UNITS = 1 |
| QF1 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 100 A | VOLTAGE = 400 VBREAKING_KA = 25TRIP_UNIT = Thermal-magneticPOLES = 3 |
| TA1 | 电流互感器PWR_CT | RATIO = 100/5 A | CLASS = 0.5BURDEN_VA = 10CORES = 1RATED_KV = 0.72 |
| PM1 | 电力仪表，多功能PWR_M_PM | ACCURACY_CLASS = 0.5INPUT = 5 A / 400 VOUTPUT = Modbus RTU | |
| KA1 | 频率继电器（81）PWR_R_81 | FUNCTION = 27 / 59 / 81 | SETTING = 47.5 to 51.5 HzTRIPS = QF1 |
| G1 | 电网接入（系统电源）PWR_GRID | RATING = 400 V | VOLTAGE_KV = 10 |
| QF2 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 160 A | VOLTAGE = 400 VBREAKING_KA = 25TRIP_UNIT = Thermal-magneticPOLES = 3 |
| TA2 | 电流互感器PWR_CT | RATIO = 160/5 A | CLASS = 0.5BURDEN_VA = 10CORES = 1RATED_KV = 0.72 |
| PM2 | 电力仪表，多功能PWR_M_PM | ACCURACY_CLASS = 0.5INPUT = 5 A / 400 VOUTPUT = Modbus RTU | |
| F8 | 电涌保护器（SPD）PWR_LV_SPD | RATED_CURRENT_A = Type 2 | VOLTAGE = 400 VBREAKING_KA = 25TRIP_UNIT = Type 1+2POLES = 3+N |
| PE2 | 保护接地PWR_EARTH_PE | EARTH_TYPE = Protective earth | RESISTANCE_OHM = 10 |
| QF11 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 100 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| M1 | 异步电动机PWR_MOTOR_IM | POWER_KW = 40 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.85STARTING = Star-deltaSERVICE = Air conditioning |
| QF12 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 63 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| EL1 | 照明负载PWR_LOAD_LIGHT | POWER_KW = 20 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.95SERVICE = Lighting |
| QF13 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 125 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| EL2 | 负载（静态）PWR_LOAD | POWER_KW = 60 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.95SERVICE = Small power and IT |
| QF14 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 100 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| EL3 | 负载（静态）PWR_LOAD | POWER_KW = 44 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.95SERVICE = EV chargers |
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。
