Japanese regulations, for example, require that the power supply for the diesel generator supplying the power to the high-pressure core spray system in boiling water reactors (BWRs) – one of the most popular of modern designs – is constantly available. The latest US designed Advanced Boiling Water Reactor includes three emergency diesels in the design specifications.
By using HBM’s GEN2i, Chinese engineers are able to monitor and record all engine signals to quickly determine any possible malfunctions so that they can be rectified immediately.
HBM’s GEN2i provides 68 channels – 48 digital and 20 analog – for monitoring signals with the system set to continuously record at 1,000 samples/min; or just over 16 samples/sec. Any channel on the diesel engine can be monitored and the system features operator defined trigger functions such as when a signal exceeds a defined value and either enters or leaves a defined range. Examples of trigger methods include rising or falling edge triggers, dual-level triggers and window triggers.
When triggered the GEN2i switches to a faster sampling rate of 1,000 samples/sec enabling signals to be immediately captured before and after any potential failure. The actual time that the GEN2i operates at this higher data capture rate can be user-defined. This enables any alert to be immediately and quickly identified so that swift remedial action can take place.
The GEN2i features high-speed, multi-channel, continuous recording that integrates Windows 7 operating system. It comes equipped with 17-inch touch screen for easy on-site real-time observation of the signal waveform and can easily be connected to a PC or laptop for subsequent data analysis.