关键词：继电器；电气工程；跳闸断路器；检测故障
摘 要：A relay is used in electrical engineering to register overcurrent, overvoltage, reverse power flow, and over- and under-frequencies to avoid accidents or flashovers. It trips the circuit breaker when a fault is detected. If there is any discrepancy or abnormality in the current voltage or any other power measurement, the relay detects it and triggers an alarm. There are two types of relay: electromechanical relays and digital relays. Solid-state relays are electronic switching devices that operate on application of small external voltage across control terminals. Solidstate relays are smaller than electromechanical relays and are more reliable as they do not have moving parts.
目 录：

01. Executive Summary

02. List of Abbreviations

03. Scope of the Report

03.1 Market Overview

03.2 Product Offerings

04. Market Research Methodology

04.1 Market Research Process

04.2 Research Methodology

05. Introduction

06. Market Landscape

06.1 Market Overview

06.2 Market Size and Forecast

06.3 Five Forces Analysis

07. Market Segmentation by Product

07.1 Global Electromechanical Relay Market

07.1.1 Market Size and Forecast

07.2 Global Solid-state Relay Market

07.2.1 Market Size and Forecast

08. Geographical Segmentation

08.1 Electromechanical and Solid-state Relay Market

in APAC Region

08.1.1 Market Size and Forecast

08.2 Electromechanical and Solid-state Relay Market

in Americas

08.2.1 Market Size and Forecast

08.3 Electromechanical and Solid-state Relay Market

in EMEA Region

08.3.1 Market Size and Forecast

09. Buying Criteria

10. Market Growth Drivers

11. Drivers and their Impact

12. Market Challenges

13. Impact of Drivers and Challenges

14. Market Trends

15. Trends and their Impact

16. Vendor Landscape

16.1 Competitive Scenario

16.2 Other Prominent Vendors

17. Key Vendor Analysis

17.1 ABB

17.1.1 Key Facts

17.1.2 Business Overview

17.1.3 Business Segmentation by Revenue 2013

17.1.4 Business Segmentation by Revenue 2011-2013

17.1.5 Geographical Segmentation by Revenue 2013

17.1.6 Business Strategy

17.1.7 Key Developments

17.1.8 SWOT Analysis

17.2 Alstom

17.2.1 Key Facts

17.2.2 Business Overview

17.2.3 Business Segmentation by Revenue 2014

17.2.4 Business Segmentation by Revenue 2013 and 2014

17.2.5 Geographical Segmentation by Revenue 2014

17.2.6 Business Strategy

17.2.7 Recent Developments

17.2.8 SWOT Analysis

17.3 GE

17.3.1 Key Facts

17.3.2 Business Overview

17.3.3 Business Segmentation by Revenue 2013

17.3.4 Business Segmentation by Revenue 2012 and 2013

17.3.5 Geographical Segmentation by Revenue 2013

17.3.6 Business Strategy

17.3.7 Recent Developments

17.3.8 SWOT Analysis

18. Other Reports in this Series