The operation of two or more generator sets connected together on a common busbar to supply the facility load is called synchronization systems. The parallel operation modes of generators are shown on the side. Diesel generator sets produce electrical energy at different voltages, from 400 volts at low voltage to 13,800 volts at high voltage. Various configurations can be made with suitable diesel generators to meet the electrical energy needs of the facility.
These are:
Continuous supply of the facility with a single generator
Continuous supply of the facility with multiple parallel generators
Supply of the facility with multiple parallel generators as backup to the mains
Parallel operation of the mains with single or multiple parallel generators
Uninterrupted transfer system between mains power and one or more backup generators
Parallel generators continuously supplying the isolated busbar
Parallel generators as backup to the mains
A single generator as backup to the mains with an uninterrupted transfer system, or a single generator operating in parallel with the mains.
Digital Paralleling System
Aksa paralleling systems provide flexibility of use and performance suitable for your complex electrical system. In Aksa digital paralleling systems, it is possible to monitor the status of all generators on a single screen according to demand. Ease of use is provided through the touch operator dialogue panel.
Digital paralleling systems have eliminated the complex operating structure of old analog systems. In this system, there is no need for a large number of switchgear cabinets, more space, additional relays, control units, and cable installations. Each generator’s control unit can communicate with each other via a communication line, fault and status information are recorded in the log, and the system can be monitored remotely via a computer. This makes the digital paralleling system more cost-effective and more reliable. In this system, the paralleling function is integrated into the microprocessor of the generator control module. Monitoring, protection, frequency and voltage control of the generator, as well as synchronization, load sharing, and paralleling protection, are all carried out by a single control unit. Within the scope of Aksa paralleling systems, the functions of supplying/receiving power and reactive/power factor control are also performed in parallel operation with the mains.
Advantages of multiple parallel generators over a single generator in backup power applications
In emergency and backup power applications, multiple small generators connected in parallel according to the load requirement provide maximum system reliability, availability, fuel savings, and operating flexibility. Taking possible failures into account, small generators designed and installed to operate in parallel offer operational and usage advantages compared to a single large generator.
