SYMAP-BCG flexible microprocessor-based digital protection and control device ABB

Because of its integrated protection functions and human-machine interface capabilities, it is an efficient and cost-effective solution for all types of switch gears. With three powerful microprocessors, SYMAP® offers complete protection and control functions for generators, motors (synchronous and asynchronous), transformers, power lines, and distributions. All protection functions can be activated simultaneously, and there are no limits in using all of them at the same time.

With SYMAP®, five main breaker controls can be activated with all the necessary functions, such as display, control and blocking, for optimal breaker management. A small integrated PLC allows individual interlocks of control commands. For flexibility in commissioning and during use, both digital and analog outputs can be used to connect the SYMAP® control unit to main switchboard controls.

Additionally, a variety of serial interfaces with different kinds of data protocols can be used for communication between SYMAP® units and the central control system. For diagnostics and monitoring, SYMAP® has three microprocessors which supervise each other, and providing a watchdog system. Important functions are laid out in a double redundancy combination, operating independently with the second processor. Connected separately, an optional unit for short circuit protection operates parallel to the SYMAP® device and will do so even if the power supply fails.