GB/T 7357-2025 船舶电气设备 系统设计 保护

ICS

47.020.60

CCS

U60

中华人民共和国国家标准

GB/T7357—2025/IEC60092﹘202：2016

代替GB/T7357—2010

船舶电气设备系统设计保护

Electricalinstallationsinships—Systemdesign—Protection

（IEC60092﹘202：2016，Electricalinstallationsinships—

Part202：Systemdesign—Protection，IDT）

2025-04-25发布2025-11-01实施

国家市场监督管理总局发布

国家标准化管理委员会

GB/T7357—2025/IEC60092﹘202：2016

目次

前言

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Ⅲ

1

范围

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2

规范性引用文件

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3

术语和定义

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4

一般要求

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3

4.1

通则

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3

4.2

基础保护

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3

4.3

分析和计算

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3

5

电力负荷分析

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3

6

短路电流计算

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4

7

选择性保护分析

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4

7.1

通则

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7.2

电流选择性

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7.3

时间电流选择性

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4

7.4

替代保护方案

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4

8

短路保护装置的特性和选型

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5

8.1

通则

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8.2

保护装置

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5

8.3

额定短路分断能力

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5

8.4

额定短路接通能力

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5

8.5

选择性保护电器的协调

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9

过载保护装置选型

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9.1

机械开关装置

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9.2

过载保护熔断器

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9.3

静止或固态开关装置

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10

按使用要求选择保护电器

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6

10.1

通则

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10.2

发电机的保护

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10.3

重要用电设备的保护

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7

10.4

变压器的保护

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7

10.5

电路的保护

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7

10.6

电动机的保护

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10.7

蓄电池的保护

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10.8

仪表、指示灯和控制电路的保护

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8

Ⅰ

GB/T7357—2025/IEC60092﹘202：2016

10.9

静止或固态装置的保护

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11

交流发电机的逆功率保护

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12

欠电压保护

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12.1

交流和直流发电机

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12.2

交流和直流电动机

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13

过压保护

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9

13.1

总则

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9

13.2

变压器

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13.3

交流设备

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14

欠频率和过频率保护

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9

参考文献

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Ⅱ

GB/T7357—2025/IEC60092﹘202：2016

前言

本文件按照GB/T1.1—2020《标准化工作导则第1部分：标准化文件的结构和起草规则》的规

定起草。

本文件代替GB/T7357—2010《船舶电气设备系统设计保护》，与GB/T7357—2010相比，

除结构调整和编辑性改动外，主要技术变化如下：

a）增加了“基础保护”“电力负荷分析”的定义（见3.11、3.12）；

b）增加了电力系统分析、计算的规定（见4.3）；

c）增加了电力负荷分析的规定（见第5章）；

d）更改了短路电流的规定，增加了短路电流计算的规定（见第6章，2010年版的第5章）；

e）增加了选择性保护分析的规定（见第7章）；

f）删除了照明电路的保护和岸电连接的保护的相关规定（见2010年版的8.7、8.8）；

g）增加了欠频率和过频率保护的规定（见第14章）。

本文件等同采用IEC60092﹘202：2016《船舶电气设备第202部分：系统设计保护》。

本文件做了下列最小限度的编辑性改动：

—将标准名称修改为《船舶电气设备系统设计保护》。

请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由全国船舶电气及电子设备标准化技术委员会（SAC/TC531）提出并归口。

本文件起草单位：上海船舶研究设计院、中国船舶集团有限公司第七〇四研究所。

本文件主要起草人：陆奕清、董治强、杨璟、张淇鑫、乔志强、田欣、李建彬、张琳、陆鹏飞、

赖昌伟。

本文件及其所代替文件的历次版本发布情况为：

—1987年首次发布为GB/T7357—1987，1998年第一次修订，2010年第二次修订；

—本次为第三次修订。

Ⅲ

GB/T7357—2025/IEC60092﹘202：2016

船舶电气设备系统设计保护

1范围

本文件适用于船舶电气设备的电气保护系统的主要特性要求。

2规范性引用文件

下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文

件，仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用

于本文件。

GB/T14048.2—2020低压开关设备和控制设备第2部分：断路器（IEC60947﹘2：2019，

MOD）

注：GB/T14048.2—2020被引用的内容与IEC60947﹘2：2019被引用的内容没有技术上的差异。

IEC60909（所有部分）三相交流系统短路电流计算（Short﹘circuitcurrentcalculationin

three﹘phasea.c.systems）

注：GB/T15544（所有部分）三相交流系统短路电流计算[IEC60909（所有部分）]

IEC60909﹘0三相交流系统短路电流计算第0部分：电流计算（Short﹘circuitcurrentcalcula﹘

tioninthree﹘phasea.c.systems—Part0：Calculationofcurrents）

注：GB/T15544.1—2023三相交流系统短路电流计算第1部分：电流计算（IEC60909﹘0：2016，MOD）

IECTR60909﹘1三相交流系统短路电流计算第1部分：短路电流计算应用的系数（Short﹘cir﹘

cuitcurrentcalculationinthree﹘phasea.c.systems—Part1：Factorsforthecalculationofshort﹘circuit

currents）

注：GB/T15544.2—2017三相交流系统短路电流计算第2部分：短路电流计算应用的系数（IECTR60909﹘1：2002，

IDT）

IEC61140电击防护装置和设备的通用部分（Protectionagainstelectricshock—Commonas﹘

pectsforinstallationsandequipment）

注：GB/T17045—2020电击防护装置和设备的通用部分（IEC61140：2016，IDT）

IEC61363﹘1船舶和移动式及固定式近海设施的电气装置第1部分：三相交流短路电流计算方

法（Electricalinstallationsofshipsandmobileandfixedoffshoreunits—Part1：Proceduresforcalcu﹘

latingshort﹘circuitcurrentsinthreephasea.c.）

注：GB/T21066—2007船舶和移动式及固定式近海设施的电气装置三相交流短路电流计算方法

（IEC61363﹘1：1998，IDT）

IEC61660﹘1电厂与变电站直流辅助设施中的短路电流第1部分：短路电流的计算（Short﹘cir﹘

cuitcurrentsind.c.auxiliaryinstallationsinpowerplantsandsubstations—Part1：Calculationof

short﹘circuitcurrents）

IEC62271﹘100高压开关设备和控制设备第100部分：交流断路器（High﹘voltageswitchgear

andcontrolgear—Part100：Alternating﹘currentcircuit﹘breakers）

3术语和定义

下列术语和定义适用于本文件。

1