ABB一直站在工業控制領域前沿，致力于創新數字化連接和啟用的工業設備和系統。設法提高公用事業，工業，運輸和基礎設施的效率，安全性和生產力。

ABB主營產品：ABB儀器儀表、ABB DCS、ABB晶閘管、ABB勵磁、ABB傳動及配件、ABB電源組件、ABB電機、ABB傳感器、ABB接觸器等。

ABB繼電器SPAD346系列介紹

ABB繼電器SPAD346C/RS621002-AA介紹

The stabilized differential relay SPAD 346 C is designed for protecting two-winding power transformers and generator-transformer. The main features include protection for winding short-circuits, interturn faults, earth faults and short circuits, as well as interwinding short-circuits and pole short circuits. In addition, the relay can be used for protection of three-winding power transformers, provided that 75% of the short circuit power to the power transformer is supplied from the same direction.

Scope

Integrated three-phase differential relay, three-phase overcurrent relay and multi-configurable earth-fault protection

Product benefits

Multi-functional protection functions

Product features

Integrated three-phase differential relay, three-phase overcurrent relay and multi-configurable earth-fault relay

Three-stage overcurrent module providing protection for power transformers and generators and two-stage backup earth-fault protection

Stabilized against unwanted operations at faults occurring outside the protected area and at transformer inrush

Second harmonic restraint for prevention of unwanted relay operations at transformer inrush

Fifth harmonic restraint for prevention of unwanted relay operations at transformer overexcitation

Wide CT ratio correction range - accurate correction through digital setting

Four heavy-duty output relays for circuit breaker tripping and five output relays for signalling

Five programmable external control inputs

Integrated circuit breaker failure protection with adjustable operate time

Differential relay and earth-fault relay modules with integrated disturbance recorder functions for analog and digital signals

Sensitive phase current and phase angle displays facilitate checking of energizing circuit connections and vector group matchings

High immunity to electrical and electromagnetic interference allows the relay to be used in severe environments

High availability and system reliability due to continuous supervision of hardware and software

SPAD 346 C 穩壓差動繼電器專為保護兩繞組電力變壓器和發電機變壓器而設計。主要功能包括對繞組短路、匝間故障、接地故障和短路以及繞組間短路和極短路的保護。此外，繼電器可用于三繞組電力變壓器的保護，前提是電力變壓器75%的短路功率由同一方向提供。

范圍

集成三相差動繼電器、三相過流繼電器和多配置接地故障保護

產品優勢

多功能保護功能

產品特點

集成三相差動繼電器、三相過流繼電器和多配置接地故障繼電器

為電力變壓器和發電機提供保護的三段過流模塊和兩段備用接地故障保護

防止發生在保護區外的故障和變壓器涌入時的意外操作

二次諧波抑制，用于防止變壓器涌入時不必要的繼電器操作

用于防止變壓器過勵磁時不必要的繼電器動作的五次諧波抑制

寬CT比校正范圍——通過數字設置精確校正

四個用于斷路器跳閘的重載輸出繼電器和五個用于發出信號的輸出繼電器

五個可編程外部控制輸入

動作時間可調的集成斷路器故障保護

差動繼電器和接地故障繼電器模塊，具有模擬和數字信號的集成故障記錄器功能

靈敏的相電流和相角顯示有助于檢查激勵電路連接和矢量組匹配

對電氣和電磁干擾的高抗擾度使繼電器可以在惡劣的環境中使用

持續監控硬件和軟件，實現高可用性和系統可靠性

ABB繼電器SPAD346系列其他常用型號：

ABB SPAD346C/RS621002-AA

ABBSPAD346C RS 621 002-AA, CA, DA, FA

ABB SPAD346C1 RS 621 003-AA, CA, DA, FA

ABB SPAD346C2 RS 621 004-AA, CA, DA, FA

ABB SPAD346C3 RS 621 005-AA, CA, DA, FA

ABB SPAD346C4 RS 621 006-AA, CA, DA, FA

ABB SPAD346C5 RS 621 007-AA, CA, DA, FA

ABB SPAD346C6 RS 621 008-AA, CA, DA, FA

ABB Relay NEW + ORIGINAL+ ONE YEAR WARRANTY

愛澤工業集產品開發、設計、制造、銷售、于一體，代理經營世界先進的電氣自動化、機械與傳動、流體控制、儀器儀表、工具等產品。作為電氣，液壓以及氣動解決方案的合作伙伴，我們利用我們的全球協作團隊，為客戶提供先進解決方案，市場知識以及相關增值服務來幫助優化客戶的工作效率，提高可靠性和安全性，致力于成為工業產品和解決方案的優質渠道。

如果有任何關于ABB繼電器SPAD346C/RS621002-AA的疑問，請隨時與我們溝通（021-31006702）。我們將盡全力解決您的問題。

If you have any question for ABB products, please feel free to dial 0086-21-3100 6702/ send request email to sales@ize-industries.com / browse our website: www.ize-industries.com.

聯系方式：

愛澤工業專業代理，特價銷售，認真，細心，高效率服務！

聯系電話：021-31006702 021-35350722 

聯系傳真：021-35350711

手    機：189 1750 1433

郵    箱：sales@ize-industries.com

公司網址：www.ize-industries.com

ABB繼電器SPAD346C/RS621002-AA介紹