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Protection Relays & Systems

The 1006X family of protection relays and systems covers an extensive range, from digital protection suitable for high-speed and/or multiple busbar networks on the largest transmission schemes, to ever-more sophisticated differential and directional elements for internal and remote protection. All 1006X relays provide the benefit of speed, accuracy and reliability in a wide variety of applications such as transmission, distribution and high-voltage switching systems.

Application fields

Protection relays of the 1006X family are designed for protecting a wide range of applications including generators, transformers, feeder and transmission line protection, overcurrent, earth fault, distance and other applications. Its high-speed fault recognition is suitable for generator, transmission, distribution and high-voltage switching protection.

In particular, the 1006X family offers an extensive range of overcurrent protection relays, earth fault protection relays as well as dead time, coincidence, graded and double pole protection. Additional protective elements such as opto-electronic detectors, monitoring relays and temperature detectors are also part of the range as well as time meters and current transformers.

Other applications for the 1006X family include motor control, transformer protection, transmission line protection, protection zone expansion systems, switching protection systems and monitoring systems. The advanced digital protection system has the capability to interface with all types of network control systems such as SCADA, FACTS, HVDC and communication networks.

Working Principle

The 1006X family of protection relays and systems employs a combination of advanced digital and analog technology for protecting electrical network elements. The safety elements which make up the family are manufactured using high-quality components to ensure accurate, reliable and speedy operation.

The relays use a microprocessor-based system to detect any abnormal condition in the network. The onboard microprocessor is used to analyze the current and voltage signals in the network and then initiate the required action. The relays measure the changes in voltage, current, and frequency and then judge the effects on the protected element. In case of any abnormality, the relay will activate the appropriate trip function.

To ensure maximum safety and reliability, the relays can be equipped with additional features such as communication systems, display units, data logging facility, and other advanced technology. The communication system enables remote monitoring of the network and the relay can be configured for different applications.

The 1006X family of protection relays and systems allow utilities to take advantage of the latest technologies available to make sure their network elements are well protected. The family of protection relays and systems ensure improved reliability of protection, reduce costs associated with downtimes, and help maintain a stable grid operation.

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