An Earthquake Emergency Alarm System for Power Plants Based on Programmable Automation Controller

Abstract:

To avoid or relief the fatal damage of an earthquake, a seismic automatic alarm system was put forward to meet the needs of power plant. Both a digital accelerometer AKE392B and a programmable automation controller SC200AD-1 were introduced to compose the earthquake emergency alarm system. The AKE392B converts the acceleration of ground motion into a series of digital signal, and this digital signal is transferred to the SC200AD-1 by the field bus EIA485. The PAC in the system is applied to collect the ground motion data, remove the non-seismic interrupts, access an earthquake’s intensity, carry out emergency auto-handling actions by ON/OFF values, and generate emergency alarm to its parent system, power plant management system. Through theory and experiment analysis, the earthquake emergency alarm system could be easily built to measure the ground motion acceleration in accuracy, and generate the seismic emergency alarm rapidly.

• Periodical: Advanced Materials Research (Volumes 986-987)
• Pages: 1178-1182
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.986-987.1178
• Online since: July 2014
• Authors: Ji Hua Fu*, Zhi Tao Li, Qiao Tan, Jian Jun Wang
• Keywords: Earthquake, Emergency Alarm System, Power Plant, Programmable Automation Controller

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