The principle is to grade the operating times of the relays in such a way that the relay closest to the fault spot operates first. The faster the protection operates, the smaller the resulting ha-zards, damage and the thermal stress will be. Further, the duration of the voltage. This article will introduce the definition of DIP switches, their working principle, DIP switch diagrams, DIP switch circuit diagrams, different types of DIP switches, and how to use DIP switch address charts to configure devices. What Is a DIP Switch? The DIP Switch, whose full name is Dual. The XS2 relay is a negative sequence protection relay with universal application. With a large number of different tripping characteristics and adjustment possibilities, the tripping characteristic can be made suitable for. IEEE/IAS/I&CPSD Protection & Coordination WG Chair Jacobs Canada, Calgary, AB rasheek. com IEEE Southern Alberta Section PES/IAS Joint Chapter Technical Seminar - November 2016 Protective Relays - Technical Seminar Nov 2016 - Copyright: IEEE 2 Abstract: Protective relays and devices. Protective relays can be classified based on their operating principle, construction, or function: 1. Static Relays: Use electronic components without moving parts. In electrical engineering, a protective relay is a relay device designed to trip a circuit breaker when a fault is detected.