CADXChange

资源单线图符号变电所单线图

双母线

一台 10 kV 配电柜，两条母线各用分段开关分成 I 段和 II 段。两路进线，两条母线之间有母联，每个间隔通过两台隔离开关接在两条母线上，另有四个出线间隔。

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)

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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
COMPANYCOMPANYCADXChange
PROJECTPROJECT10/0.4 kV Distribution Substation
AREAAREASubstation
SYSTEMSYSTEM10 kV
CLIENTCLIENTSample
TITLEDRAWING TITLESingle-line diagram, double busbar
DRAWING_NODRAWING NO.E-002
CONTRACT_NOCONTRACT NO.—
REVREVA
DRAWNDRAWN—
CHECKEDCHECKED—
APPROVEDAPPROVED—
DATEDATE2026-10-20
SCALESCALENTS
SHEETSHEET1
SHEET_OFOF1

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
隔离开关PWR_DISCONNECTOR14
真空断路器PWR_CB_VCB9
电流互感器PWR_CT6
电网接入（系统电源）PWR_GRID2
过电流继电器（50/51）PWR_R_50512
变压器，三角-星，中性点接地PWR_TX_DYN2
熔断器PWR_FUSE1
电压互感器PWR_VT1
接地PWR_EARTH1
异步电动机PWR_MOTOR_IM1
负载（静态）PWR_LOAD1

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
QF4真空断路器PWR_CB_VCBRATED_KV = 12 kVRATED_CURRENT_A = 630BREAKING_KA = 25INTERRUPTER = VacuumMECHANISM = SpringCONTROL_VOLTAGE = 110 V DC
QF5真空断路器PWR_CB_VCBRATED_KV = 12 kVRATED_CURRENT_A = 630BREAKING_KA = 25INTERRUPTER = VacuumMECHANISM = SpringCONTROL_VOLTAGE = 110 V DC
G1电网接入（系统电源）PWR_GRIDRATING = 250 MVAVOLTAGE_KV = 10
QF1真空断路器PWR_CB_VCBRATED_KV = 12 kVRATED_CURRENT_A = 630BREAKING_KA = 25INTERRUPTER = VacuumMECHANISM = SpringCONTROL_VOLTAGE = 110 V DC
TA1电流互感器PWR_CTRATIO = 400/1 ACLASS = 5P20BURDEN_VA = 15CORES = 2RATED_KV = 12
QS11隔离开关PWR_DISCONNECTORRATED_CURRENT_A = 630SHORT_TIME_KA = 25EARTHING_SWITCH = NoMECHANISM = Manual
QS12隔离开关PWR_DISCONNECTORRATED_CURRENT_A = 630SHORT_TIME_KA = 25EARTHING_SWITCH = NoMECHANISM = Manual
F1过电流继电器（50/51）PWR_R_5051FUNCTION = OC / EFSETTING = I> 1.2 In, 0.3 s; I>> 8 In, 0.1 sTRIPS = QF1CT_INPUT = TA1
G2电网接入（系统电源）PWR_GRIDRATING = 250 MVAVOLTAGE_KV = 10
QF2真空断路器PWR_CB_VCBRATED_KV = 12 kVRATED_CURRENT_A = 630BREAKING_KA = 25INTERRUPTER = VacuumMECHANISM = SpringCONTROL_VOLTAGE = 110 V DC
TA2电流互感器PWR_CTRATIO = 400/1 ACLASS = 5P20BURDEN_VA = 15CORES = 2RATED_KV = 12
QS21隔离开关PWR_DISCONNECTORRATED_CURRENT_A = 630SHORT_TIME_KA = 25EARTHING_SWITCH = NoMECHANISM = Manual
QS22隔离开关PWR_DISCONNECTORRATED_CURRENT_A = 630SHORT_TIME_KA = 25EARTHING_SWITCH = NoMECHANISM = Manual
F2过电流继电器（50/51）PWR_R_5051FUNCTION = OC / EFSETTING = I> 1.2 In, 0.3 s; I>> 8 In, 0.1 sTRIPS = QF2CT_INPUT = TA2
QS31隔离开关PWR_DISCONNECTORRATED_KV = 12 kVRATED_CURRENT_A = 630SHORT_TIME_KA = 25EARTHING_SWITCH = NoMECHANISM = Manual
QF3真空断路器PWR_CB_VCBRATED_KV = 12 kVRATED_CURRENT_A = 630BREAKING_KA = 25INTERRUPTER = VacuumMECHANISM = SpringCONTROL_VOLTAGE = 110 V DC
QS32隔离开关PWR_DISCONNECTORRATED_KV = 12 kVRATED_CURRENT_A = 630SHORT_TIME_KA = 25EARTHING_SWITCH = NoMECHANISM = Manual
FU1熔断器PWR_FUSERATED_KV = 12 kVRATED_CURRENT_A = 6BREAKING_KA = 50CHARACTERISTIC = Current limiting
TV1电压互感器PWR_VTRATIO = 10/0.1 kVCLASS = 0.5BURDEN_VA = 50WINDINGS = 2RATED_KV = 12
E1接地PWR_EARTHEARTH_TYPE = PE
QS101隔离开关PWR_DISCONNECTORRATED_CURRENT_A = 630SHORT_TIME_KA = 25EARTHING_SWITCH = NoMECHANISM = Manual
QS102隔离开关PWR_DISCONNECTORRATED_CURRENT_A = 630SHORT_TIME_KA = 25EARTHING_SWITCH = NoMECHANISM = Manual
QF10真空断路器PWR_CB_VCBRATED_KV = 12 kVRATED_CURRENT_A = 630BREAKING_KA = 25INTERRUPTER = VacuumMECHANISM = SpringCONTROL_VOLTAGE = 110 V DC
TA10电流互感器PWR_CTRATIO = 200/1 ACLASS = 5P20BURDEN_VA = 15CORES = 2RATED_KV = 12
T1变压器，三角-星，中性点接地PWR_TX_DYNRATING_MVA = 1.6 MVAVOLTAGE_RATIO = 10/0.4 kVVECTOR_GROUP = Dyn11IMPEDANCE_PCT = 6TAP_RANGE = +/-2x2.5%COOLING = ONANNEUTRAL_EARTHING = Solid
QS111隔离开关PWR_DISCONNECTORRATED_CURRENT_A = 630SHORT_TIME_KA = 25EARTHING_SWITCH = NoMECHANISM = Manual
QS112隔离开关PWR_DISCONNECTORRATED_CURRENT_A = 630SHORT_TIME_KA = 25EARTHING_SWITCH = NoMECHANISM = Manual
QF11真空断路器PWR_CB_VCBRATED_KV = 12 kVRATED_CURRENT_A = 630BREAKING_KA = 25INTERRUPTER = VacuumMECHANISM = SpringCONTROL_VOLTAGE = 110 V DC
TA11电流互感器PWR_CTRATIO = 200/1 ACLASS = 5P20BURDEN_VA = 15CORES = 2RATED_KV = 12
T2变压器，三角-星，中性点接地PWR_TX_DYNRATING_MVA = 1.6 MVAVOLTAGE_RATIO = 10/0.4 kVVECTOR_GROUP = Dyn11IMPEDANCE_PCT = 6TAP_RANGE = +/-2x2.5%COOLING = ONANNEUTRAL_EARTHING = Solid
QS121隔离开关PWR_DISCONNECTORRATED_CURRENT_A = 630SHORT_TIME_KA = 25EARTHING_SWITCH = NoMECHANISM = Manual
QS122隔离开关PWR_DISCONNECTORRATED_CURRENT_A = 630SHORT_TIME_KA = 25EARTHING_SWITCH = NoMECHANISM = Manual
QF12真空断路器PWR_CB_VCBRATED_KV = 12 kVRATED_CURRENT_A = 630BREAKING_KA = 25INTERRUPTER = VacuumMECHANISM = SpringCONTROL_VOLTAGE = 110 V DC
TA12电流互感器PWR_CTRATIO = 200/1 ACLASS = 5P20BURDEN_VA = 15CORES = 2RATED_KV = 12
M1异步电动机PWR_MOTOR_IMPOWER_KW = 800 kWVOLTAGE = 10 kVPOWER_FACTOR = 0.85STARTING = Star-deltaSERVICE = Compressor K-101
QS131隔离开关PWR_DISCONNECTORRATED_CURRENT_A = 630SHORT_TIME_KA = 25EARTHING_SWITCH = NoMECHANISM = Manual
QS132隔离开关PWR_DISCONNECTORRATED_CURRENT_A = 630SHORT_TIME_KA = 25EARTHING_SWITCH = NoMECHANISM = Manual
QF13真空断路器PWR_CB_VCBRATED_KV = 12 kVRATED_CURRENT_A = 630BREAKING_KA = 25INTERRUPTER = VacuumMECHANISM = SpringCONTROL_VOLTAGE = 110 V DC
TA13电流互感器PWR_CTRATIO = 200/1 ACLASS = 5P20BURDEN_VA = 15CORES = 2RATED_KV = 12
L1负载（静态）PWR_LOADPOWER_KW = 2500 kWVOLTAGE = 10 kVPOWER_FACTOR = 0.95SERVICE = To substation SS-2

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。

同系列的其他图纸