单母线
一段 10 kV 母线带两台 1.6 MVA 变压器和一路电压互感器，0.4 kV 配电柜分两段，由母联连接，共八路出线。
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)
版本 1.0 · 更新于 2026年10月20日
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： 变电所单线图
标题栏字段
标题栏的属性。双击标题栏就能填写，也可以用 BlockSync 给整套图纸一起写入。
| 属性 | 图纸上的字段 | 本样图中的值 |
|---|---|---|
| COMPANY | COMPANY | CADXChange |
| PROJECT | PROJECT | 10/0.4 kV Distribution Substation |
| AREA | AREA | Substation |
| SYSTEM | SYSTEM | 10 kV / 0.4 kV |
| CLIENT | CLIENT | Sample |
| TITLE | DRAWING TITLE | Single-line diagram |
| DRAWING_NO | DRAWING NO. | E-001 |
| CONTRACT_NO | CONTRACT NO. | — |
| REV | REV | A |
| DRAWN | DRAWN | — |
| CHECKED | CHECKED | — |
| APPROVED | APPROVED | — |
| DATE | DATE | 2026-10-20 |
| SCALE | SCALE | NTS |
| SHEET | SHEET | 1 |
| SHEET_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。用 BlockSync 可以从你自己的图纸里导出同样的清单。
| 符号 | 块名 | 数量 |
|---|---|---|
 塑壳断路器 | PWR_LV_MCCB | 8 |
 异步电动机 | PWR_MOTOR_IM | 4 |
 真空断路器 | PWR_CB_VCB | 3 |
 电流互感器 | PWR_CT | 3 |
 过电流继电器（50/51） | PWR_R_5051 | 3 |
 负载（静态） | PWR_LOAD | 3 |
 变压器，三角-星，中性点接地 | PWR_TX_DYN | 2 |
 空气断路器 | PWR_CB_ACB | 2 |
 电网接入（系统电源） | PWR_GRID | 1 |
 隔离开关 | PWR_DISCONNECTOR | 1 |
 熔断器 | PWR_FUSE | 1 |
 电压互感器 | PWR_VT | 1 |
 接地 | PWR_EARTH | 1 |
 母联断路器 | PWR_BUS_TIE | 1 |
 功率因数补偿 | PWR_LV_PFC | 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。BlockSync 可以从你自己的图纸里导出同样的属性。
| 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 = 250 MVA | VOLTAGE_KV = 10 |
| QS1 | 隔离开关PWR_DISCONNECTOR | RATED_KV = 12 kV | RATED_CURRENT_A = 630SHORT_TIME_KA = 25EARTHING_SWITCH = NoMECHANISM = Manual |
| QF1 | 真空断路器PWR_CB_VCB | RATED_KV = 12 kV | RATED_CURRENT_A = 630BREAKING_KA = 25INTERRUPTER = VacuumMECHANISM = SpringCONTROL_VOLTAGE = 110 V DC |
| TA1 | 电流互感器PWR_CT | RATIO = 200/1 A | CLASS = 5P20BURDEN_VA = 15CORES = 2RATED_KV = 12 |
| F1 | 过电流继电器（50/51）PWR_R_5051 | FUNCTION = OC / EF | SETTING = I> 1.2 In, 0.3 s; I>> 8 In, 0.1 sTRIPS = QF1CT_INPUT = TA1 |
| QF2 | 真空断路器PWR_CB_VCB | RATED_KV = 12 kV | RATED_CURRENT_A = 630BREAKING_KA = 25INTERRUPTER = VacuumMECHANISM = SpringCONTROL_VOLTAGE = 110 V DC |
| TA2 | 电流互感器PWR_CT | RATIO = 100/1 A | CLASS = 5P20BURDEN_VA = 15CORES = 2RATED_KV = 12 |
| T1 | 变压器，三角-星，中性点接地PWR_TX_DYN | RATING_MVA = 1.6 MVA | VOLTAGE_RATIO = 10/0.4 kVVECTOR_GROUP = Dyn11IMPEDANCE_PCT = 6TAP_RANGE = +/-2x2.5%COOLING = ONANNEUTRAL_EARTHING = Solid |
| QF4 | 空气断路器PWR_CB_ACB | RATED_KV = 0.69 kV | RATED_CURRENT_A = 2500BREAKING_KA = 50INTERRUPTER = AirMECHANISM = Motor-charged springCONTROL_VOLTAGE = 110 V DC |
| F2 | 过电流继电器（50/51）PWR_R_5051 | FUNCTION = OC / EF | SETTING = I> 1.1 In, 0.4 s; I>> 7 In, 0.1 sTRIPS = QF2CT_INPUT = TA2 |
| QF3 | 真空断路器PWR_CB_VCB | RATED_KV = 12 kV | RATED_CURRENT_A = 630BREAKING_KA = 25INTERRUPTER = VacuumMECHANISM = SpringCONTROL_VOLTAGE = 110 V DC |
| TA3 | 电流互感器PWR_CT | RATIO = 100/1 A | CLASS = 5P20BURDEN_VA = 15CORES = 2RATED_KV = 12 |
| T2 | 变压器，三角-星，中性点接地PWR_TX_DYN | RATING_MVA = 1.6 MVA | VOLTAGE_RATIO = 10/0.4 kVVECTOR_GROUP = Dyn11IMPEDANCE_PCT = 6TAP_RANGE = +/-2x2.5%COOLING = ONANNEUTRAL_EARTHING = Solid |
| QF5 | 空气断路器PWR_CB_ACB | RATED_KV = 0.69 kV | RATED_CURRENT_A = 2500BREAKING_KA = 50INTERRUPTER = AirMECHANISM = Motor-charged springCONTROL_VOLTAGE = 110 V DC |
| F3 | 过电流继电器（50/51）PWR_R_5051 | FUNCTION = OC / EF | SETTING = I> 1.1 In, 0.4 s; I>> 7 In, 0.1 sTRIPS = QF3CT_INPUT = TA3 |
| FU1 | 熔断器PWR_FUSE | RATED_KV = 12 kV | RATED_CURRENT_A = 6BREAKING_KA = 50CHARACTERISTIC = Current limiting |
| TV1 | 电压互感器PWR_VT | RATIO = 10/0.1 kV | CLASS = 0.5BURDEN_VA = 50WINDINGS = 2RATED_KV = 12 |
| E1 | 接地PWR_EARTH | EARTH_TYPE = PE | |
| QF6 | 母联断路器PWR_BUS_TIE | VOLTAGE_KV = 0.4 | RATED_CURRENT_A = 2000CONDUCTOR = Copper busbarSHORT_CIRCUIT_KA = 50 |
| QM11 | 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 = 30 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.85STARTING = Star-deltaSERVICE = Feed pump P-101 |
| QM12 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 125 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| M2 | 异步电动机PWR_MOTOR_IM | POWER_KW = 75 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.85STARTING = Star-deltaSERVICE = Cooling fan F-201 |
| QM13 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 125 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| L1 | 负载（静态）PWR_LOAD | POWER_KW = 20 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.95SERVICE = Lighting LP-1 |
| QM14 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 125 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| C1 | 功率因数补偿PWR_LV_PFC | RATED_CURRENT_A = 100 kvar | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| QM15 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 125 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| M3 | 异步电动机PWR_MOTOR_IM | POWER_KW = 55 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.85STARTING = Star-deltaSERVICE = Compressor K-301 |
| QM16 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 125 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| L2 | 负载（静态）PWR_LOAD | POWER_KW = 40 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.95SERVICE = Heating HP-1 |
| QM17 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 125 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| L3 | 负载（静态）PWR_LOAD | POWER_KW = 60 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.95SERVICE = Process PP-1 |
| QM18 | 塑壳断路器PWR_LV_MCCB | RATED_CURRENT_A = 125 A | VOLTAGE = 400 VBREAKING_KA = 36TRIP_UNIT = Thermal-magneticPOLES = 3 |
| M4 | 异步电动机PWR_MOTOR_IM | POWER_KW = 37 kW | VOLTAGE = 400 VPOWER_FACTOR = 0.85STARTING = Star-deltaSERVICE = Mixer A-401 |
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。
