No-break generators system
Intervention type
CommissioningLocation
GermanyApplication description
No Break generators are equipped with a flywheel weighing several tons between the alternator and the engine. The purpose of this type of arrangement is to allow continuous rotation of the alternator driven by the flywheel without using the engine, and therefore no mechanical wear or fuel use, while having the assurance of emergency power supply in a very short time (tenths of a second).
The application presented below is a backup plant on a site dedicated to a German oil refining and processing company. The specification of this application requires a complete adaptation of the start and stop sequence, of the paralleling operation and a new function for the clutch. CRE TECHNOLOGY has proposed a specific adaptation of the GENSYS 2.0 on mains paralleling to meet the customer’s requirements.
The technical solution
The GENSYS 2.0 uses all its capacity in terms of internal automation to manage the complex sequence of starting and paralleling of the generator; unlike conventional generators, Nobreak is started for the first time in a very long sequence to launch flying inertia, the steering wheel is disengaged once the engine is at rated speed and is takes over by an electric motor which maintains the wheel speed, at this time the excitation is disabled on the alternator and the installation is ready to run. When there is a mains failure detected, the role of GENSYS 2.0 is to excite the generator and switch the power in a short period of time while the engine is started and engaged.
Once the engine is supplied with fuel and clutched to the alternator, the generator recovers a conventional behavior. Beyond the defined sequence on mains failure, the GENSYS 2.0 also includes a test mode and a specific manual mode for this installation.
Products installed
- GENSYS 2.0