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Soft Loading Import / Export
The SLIE is a close transition soft loading device that parallels a single generator to a single utility power grid.
The controls in the SLIE perform active synchronization of the generator output with the utility power and vice versa during a power transfer process. The SLIE is suitable for a single generator with a single utility application where a close transition transfer with an extended parallel of the two sources is allowed by the utility power company. The SLIE can be designed to operate in Import or Export modes based on the total facility kW loads and the generating capacity.
In the Import mode the controls continuously monitor the utility net import level and adjust the output of the generator so that a pre-defined kW is always imported into the customer’s facility from the utility.
In the Export mode the controls continuously monitor the utility net export set point and adjust the output of the generator so that a pre-defined kW is always exported to the utility power grid.
The SLIE is a good choice for customers who require reliable emergency backup capabilities at the same time provide bumpless transfer back to the utility when utility power returns. In addition the SLIE can also be used by customers for peakshaving applications without interrupting power to their critical loads during the peakshaving process. The transfer of power between sources is seamless.
The SLIE is available in the following sizes and enclosures:
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Voltage |
Ampere |
Enclosure |
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Up to 600V |
400A - 5000A |
NEMA 1 & 3R |
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5kV & 15kV |
50A – 1200A |
NEMA 1 & 3R |
Control Options Available:
- Open Transition Mode
- Peakshaving Mode
- Operator Interface Touchscreen with:
- System Oneline
- System Control
- Alarm Summary
- Event Logging with Date Stamp
- Trend Logging
- Utility & Generator Metering
Monitoring System:
This model can be equipped with web-TOUCH monitoring system that allow user to monitor the status and health of the system. More Information.....
Typical Oneline and Elevation Diagrams:
Typical for Low Voltage Application