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ABB继电器SPAD346系列介绍

ABB继电器SPAD346C/RS621002-AA介绍

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 稳压差动继电器专为保护两绕组电力变压器和发电机变压器而设计。主要功能包括对绕组短路、匝间故障、接地故障和短路以及绕组间短路和极短路的保护。此外，继电器可用于三绕组电力变压器的保护，前提是电力变压器75%的短路功率由同一方向提供。

范围

集成三相差动继电器、三相过流继电器和多配置接地故障保护

产品优势

多功能保护功能

产品特点

集成三相差动继电器、三相过流继电器和多配置接地故障继电器

为电力变压器和发电机提供保护的三段过流模块和两段备用接地故障保护

防止发生在保护区外的故障和变压器涌入时的意外操作

二次谐波抑制，用于防止变压器涌入时不必要的继电器操作

用于防止变压器过励磁时不必要的继电器动作的五次谐波抑制

宽CT比校正范围——通过数字设置精确校正

四个用于断路器跳闸的重载输出继电器和五个用于发出信号的输出继电器

五个可编程外部控制输入

动作时间可调的集成断路器故障保护

差动继电器和接地故障继电器模块，具有模拟和数字信号的集成故障记录器功能

灵敏的相电流和相角显示有助于检查激励电路连接和矢量组匹配

对电气和电磁干扰的高抗扰度使继电器可以在恶劣的环境中使用

持续监控硬件和软件，实现高可用性和系统可靠性

ABB继电器SPAD346系列其他常用型号：

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继电器SPAD346C/RS621002-AA介绍