1880DB-8X

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Part Status:	Active

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Protection Relays & Systems: 1880DB-8X Application Field and Working Principle

The 1880DB-8X Protection Relay is a highly dependable, accurate and versatile electro-mechanical device for providing protection against faults, normally found in power generation, transmission and distribution systems. It is designed to monitor voltage and current, detect the type of fault on a power system, and disconnect the circuit and make corrective action automatically.With the 1880DB-8X Protection Relay, an electric service will be safer, power levels will remain steady and reliability will increase. This device will provide additional safety for operators, components and systems in industrial plants, power plants, or medium and high voltage environments.The 1880DB-8X is used in many places. In power generation, it is used as over-current or under-voltage protection on generators and also as a reverse power device. In transmission, it is used as protection against single line to ground and three-phase-in-phase faults. In distribution, it helps prevent under-voltage, over-voltage, over-current, and reverse power faults. This device can also be used for generator applications, including protection against phase rate of change of frequency (ROCOF) overload, reverse spin, and loss of field/machine protection.The 1880DB-8X has three main components, an electro-mechanical relay, a voltage transformer (VT), and a current transformer (CT). The electro-mechanical relay houses two coils, one for voltage sensing, and one for current sensing. The voltage sensing coil is connected to the system voltage and then to the voltage transformer (VT). The CT will transform the current to signals that are sent to the electro-mechanical relay. The voltage transformer will stepdown the system voltage to a level suitable for the relay. The current transformer will also step down the current passing through the line to a level that can be handled by the relay. The relay will then use the signals from the transformers to initiate a trip or protection function.The 1880DB-8X Protection Relay is adjustable for different settings according to operational needs. Different delay times, current settings and voltage settings can be adjusted depending on the application. The relay has up to five full sets of adjustable settings that can be used to protect the system and the equipment.The 1880DB-8X Protection Relay is designed to be reliable and accurate. It has advanced features such as fault location identification, advanced overload control, over-voltage and under-voltage protection, and remote monitoring. In addition, the device is designed to be easy to install and maintain. The 1880DB-8X Protection Relay is an excellent choice for providing protection to medium and high voltage power distribution systems. It is reliable and accurate, and can be used to protect the system and equipment from faults and overloads. With its advanced features and adjustable settings, it is an excellent option for providing protection and safety in industrial, power plant, and large distribution system environments.

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