Description
ABB-SPAD346C3产品详解
产品概述
ABB-SPAD346C3是一款ABB公司生产的差动保护继电器。它主要用于电力系统的差动保护，通过比较被保护设备两端的电流，来检测内部故障，并发出跳闸信号，以保护设备和系统。
产品特点
稳定性高:采用数字信号处理技术，具有很高的稳定性和可靠性。
灵敏度高:对内部故障具有很高的灵敏度，能够快速准确地检测出故障。
功能丰富:除了差动保护外，还具有多种辅助保护功能，如过流保护、欠压保护等。
可配置性强:通过软件可以对继电器进行灵活的配置，以适应不同的应用场景。
主要功能
差动保护:比较被保护设备两端的电流，当内部发生故障时，两端电流不平衡，继电器动作，发出跳闸信号。
过流保护:当电流超过设定值时，继电器动作，发出跳闸信号。
欠压保护:当电压低于设定值时，继电器动作，发出跳闸信号。
零序过流保护:检测零序电流，用于保护变压器中性点接地系统。
方向性过电流保护:用于保护线路的末端。
应用场景
电力变压器保护:用于保护电力变压器，防止内部故障。
发电机保护:用于保护发电机，防止内部故障。
电动机保护:用于保护电动机，防止内部故障。
母线保护:用于保护母线，防止短路故障。
ABB-SPAD346C3 Product Detailed Description
Product Overview
ABB-SPAD346C3 is a differential protection relay produced by ABB.It is mainly used for differential protection of power systems.By comparing the currents at both ends of the protected equipment,it detects internal faults and sends out tripping signals to protect equipment and systems.
Product Features
High stability:It adopts digital signal processing technology and has high stability and reliability.
High sensitivity:It has high sensitivity to internal faults and can detect faults quickly and accurately.
Rich functions:In addition to differential protection,it also has a variety of auxiliary protection functions,such as overcurrent protection,undervoltage protection,etc.
Strong configurability:The relay can be flexibly configured through software to adapt to different application scenarios.
Main functions
Differential protection:Compare the currents at both ends of the protected equipment.When an internal fault occurs,the currents at both ends are unbalanced,the relay operates,and a tripping signal is issued.
Overcurrent protection:When the current exceeds the set value,the relay operates and a tripping signal is issued.
Undervoltage protection:When the voltage is lower than the set value,the relay will operate and send a trip signal.
Zero-sequence overcurrent protection:Detect zero-sequence current to protect the transformer neutral point grounding system.
Directional overcurrent protection:Used to protect the end of the line.
Application scenarios
Power transformer protection:Used to protect power transformers to prevent internal faults.
Generator protection:Used to protect generators to prevent internal faults.
Motor protection:Used to protect motors to prevent internal faults.
Busbar protection:Used to protect busbars to prevent short-circuit faults.
