A  Smart 24 x 7 x 365 Power Guard

The 7000 Series Generator Paralleling Switchgear
Stands Ready 24 x 7 x 365,
Ensuring Immediate and Reliable
Response to a Loss of Utility Power.

the switchgear power control system (PCS) will start all engine-generators when the power transfer switches sense a power outage. The first generator to achieve an acceptable level of voltage and frequency connects to the emergency bus. A PCS signal initiates connection of the priority one loads to the emergency bus. The switchgear then synchronizes the remaining generator(s), connects each to the bus... and signals all power transfer switches to connect priority loads to the emergency source in a user-defined priority sequence.

the system automatically disconnects it from the emergency bus, shuts it down and signals the associated lowest priority loads to shed.

Load Demand… is a load management feature that automatically determines and keeps the minimum required number of generators online to  carry the actual kW load, conserving fuel and reducing engine run time.

Bus Load Optimization… automatically sheds blocks of load to prevent over-loading of the remaining generators, and automatically re-adds individual loads to the bus per a prescribed sequence according to their priority value if any genera-tor fails.

Parallel with Utility… can be added to the standby and prime power PCS automatic closed-transition operational mode that helps reduce energy costs by shaving your facility’s peak energy demand and/or ex-port/import power to/from the electric utility.

When Normal Source Power Is Restored… each ATS senses a utility source that is within tolerance and, after a time delay, individually re-transfers to the normal position. When the last ATS has re-transferred to the normal position, the PCS will simultaneously open the generator breakers and allow running to their programmed cool down  period… PCS is now back to Automatic Standby / (or Utility) Mode.

The two diagrams below show typical systems with four engine-generators for utility paralleling operational mode.