Continuous Power
Source Changeover Systems
Generator synchronizing panels
Electricity is the fuel that feeds economic activity. Very few operations can withstand the financial impact of an electrical stoppage. For occupant comfort, business continuity, and worker/visitor safety, dependability levels which used to apply to hospitals or airports are now becoming required in shop- ping malls and offices. Additionally, utility companies make their contracts more sophisticated to deal with energy concerns: for example, by including time restrictions to total accessible power.
For these reasons, backup power sources expand across all types of buildings, and require high perfor- mance connection and management enabling you to meet these challenges.
Source Changeover Systems
- To ensure continuity of service for critical applications, LV electrical installations need to be connected to at least two independent power sources; a Normal Source (N) and a Replacement Source (R)
- Available from 25A to 6000A
- A source-changeover system comprises circuit breakers, switch-disconnectors or contactors.
- Switching from a main power source to a replacement source can be performed either manually or automatically.
- A source-changeover system can be automated to manage transfers according to external conditions.
- Automatic Transfer Switch can be supplied with
- Relay & Timer based Control,
- PLC based Control
- Microprocessor based Control
- Control from remote : through BMS, SCADA, etc.
Generator synchronizing panels
- Synchronizing panel will operate on an automatic mains failure system, so that when the main supply is interrupted on one or all phases (after an adjustable delay period) the generator sets will start-up together. After an initial warm-up period (adjustable) the generators will synchronize with each other by means of motorized circuit breakers or contactors onto a common busbar. Next, the motorized change-over switch will be closed and the load will be connected to the main distribution box.
- The load share units continuously monitor the load and during low demand periods one or two generators will be shut down to save on fuel consumption. As demand rises again the second generator and third generator will be restarted, synchronized and reconnected to the load. When the AMF control unit detects that the main supply has been restored an adjustable observation period is activated before the main supply is reconnected. A cool down period will then follow, after which the generator sets will be shut down.
Key features of General Control & Synchronization Panel
- 3-pole or 4-pole system as required
- Various combinations of load transfer by ACBs, MCCBs or Contactors
- Protection class up to IP 54
- Load sharing/load shedding
- Automatic and manual synchronizing
- Factory built to client's specifications
- Ratings up to 6000A
- Control functions available for engine monitoring, warm-up and cool down periods, emergency shutdown, multi attempt engine start control, engine test runs
