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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(wěn)壓差動(dòng)繼電器專為保護(hù)兩繞組電力變壓器和發(fā)電機(jī)變壓器而設(shè)計(jì)。主要功能包括對(duì)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(hù)。此外，繼電器可用于三繞組電力變壓器的保護(hù)，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(dòng)繼電器、三相過流繼電器和多配置接地故障保護(hù)
產(chǎn)品優(yōu)勢(shì)
多功能保護(hù)功能
產(chǎn)品特點(diǎn)
集成三相差動(dòng)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(fā)電機(jī)提供保護(hù)的三段過流模塊和兩段備用接地故障保護(hù)
防止發(fā)生在保護(hù)區(qū)外的故障和變壓器涌入時(shí)的意外操作
二次諧波抑制，用于防止變壓器涌入時(shí)不必要的繼電器操作
用于防止變壓器過勵(lì)磁時(shí)不必要的繼電器動(dòng)作的五次諧波抑制
寬CT比校正范圍——通過數(shù)字設(shè)置精確校正
四個(gè)用于斷路器跳閘的重載輸出繼電器和五個(gè)用于發(fā)出信號(hào)的輸出繼電器
五個(gè)可編程外部控制輸入
動(dòng)作時(shí)間可調(diào)的集成斷路器故障保護(hù)
差動(dòng)繼電器和接地故障繼電器模塊，具有模擬和數(shù)字信號(hào)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(lì)電路連接和矢量組匹配
對(duì)電氣和電磁干擾的高抗擾度使繼電器可以在惡劣的環(huán)境中使用
持續(xù)監(jiān)控硬件和軟件，實(shí)現(xiàn)高可用性和系統(tǒng)可靠性
ABB繼電器SPAD346系列其他常用型號(hào)：
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
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ABB繼電器SPAD346C/RS621002-AA介紹
