Power Control System parallels multiple gen-sets.
Press Release Summary:
Series 7700 measures 24 in. D x 24 in. W x 72 in. H, and can control 2 engine-generator sets in 1 control section. Single section includes all digital controls and meters to start, synchronize, and control sets for emergency and prime power applications. Using integrated control logic, system transfers highest priority block load to first gen-set that produces acceptable voltage and frequency. PCS monitors under/over voltage and under/over frequency.Original Press Release:
New ASCO 7700 Series Power Control System Parallels Multiple Gen-Sets Reliably
Next-generation PCS streamlines size, delivery and maintenance
LAS VEGAS, NV, December 11, 2001-The new ASCO 7700 Series Power Control System (PCS) meets market demand for paralleling multiple engine-generator sets reliably.
The ASCO PCS represents a major step forward in streamlining generator paralleling system size, delivery and maintenance through the use of compact, digital technology that now is standard with the PCS. It has a significantly smaller footprint for tight or unconventional floor requirements, quicker manufacturing lead times and standardized configuration for faster delivery, and easier serviceability.
The capability to control two engine-generator sets now is fully contained in one control section, rather than three. Its 24 in. depth, 24 in. width and 72 in. height compares favorably with the 60 in. depth, 84 in. width and 90 in. height of two traditional generator control sections and a master control section. Overall, the footprint of the new control section is nearly 90 percent smaller than the three sections it replaces and its height is only 80 percent that of the traditional sections.
The single section includes all digital controls and meters to reliably start, synchronize and control two engine-generator sets for emergency and prime power applications. A digital controller for each gen-set controls voltage and engine speed. Using integrated control logic, the system transfers the highest priority block load to the first gen-set that produces acceptable voltage and frequency.
The second priority block loads are automatically transferred when the second gen-set is synchronized and connected to the emergency bus.
If one of the operating gen-sets fails, the system will automatically shed the lowest priority load block.
The PCS also monitors under/over voltage, under/over frequency and includes other protective relay functions as standard features.
Software-based display screens on the section's door communicate more information in less space and digital metering measures volts, amps, watts and frequency. Insulated case circuit breakers that parallel the generator to the emergency bus are an integral part of the PCS's design, which follows NEMA and Underwriter Laboratories 891 standards.
The PCS provides highly reliable, onsite power control for commercial, industrial, and mission critical, high nines data center applications. Combined with ASCO 7000 Series Power Transfer Switches, PowerQuest and SiteWeb(TM) communication and connectivity systems, the 7700 Power Control System can fully integrate an end user's onsite power switching and control requirements.
