Introduction to ATS Scott Kolek – ATS Global Product Manager 2006 Annual Power Quality Meeting

Introduction to ATS Scott Kolek Global Annual Power Quality Meeting G What is an Automatic Transfer Switch (ATS) ? An ATS is a device designed to Automatically switch (transfer) between (2) sources of power to improve the reliability of the electrical supply to a connected load. Primary Source (typically a Utility Supply or Utility Bus) (Normally Energized) Backup Source (typically a Generator Supply (Normally De- Energized)

Introduction to ATS Scott Kolek Global Annual Power Quality Meeting ATS...An integral part of the Power Quality Solution UPS ATS TVSS PSG Automatic Transfer Switches (ATS) provide 2 sources of power to life and business critical loads, including UPS Power Quality Equipment Deregulation, Shortage, Limited Infrastructure = Unreliable & cost up Dependent on availability and reliability of electrical energy 99.9% Bridge the Gap (8 hours/yr downtime) (1 second/yr downtime) 99.9% Bridge the Gap (8 hours/yr downtime) (1 second/yr downtime) Utility Power “Digital World” Life Safety Loads Business Critical Loads Primary Power Source Backup Power Source

Introduction to ATS Scott Kolek Global Annual Power Quality Meeting Typical Applications of ATS Utility and Engine Generator  Single unit standby applications are very common Utility and Utility  Dual utility applications are becoming more common Generator and Generator  Prime power / standby application

Introduction to ATS Scott Kolek Global Annual Power Quality Meeting Standard Transition (No Center Position) Delayed Transition (With Center OFF Position) NOTE: “OFF” Position indicates Neither Source connected Closed Transition (Make-Before-Break Operation) NOTE: “P” Position indicates both sources paralleled for 5 cycles Standard Transfer Switch: Types

Introduction to ATS Scott Kolek Global Annual Power Quality Meeting Standard Transition (No Center Position ) Delayed Transition (With Center OFF Position) NOTE: “OFF” Position indicates Neither Source connected Closed Transition (Make-Before-Break Operation) NOTE: “P” Position indicates both sources paralleled for 5 cycles Bypass ATS Standard ATS Bypass Transfer Switches: Types

Introduction to ATS Scott Kolek Global Annual Power Quality Meeting GE Zenith Range of ATS - Overview ZTX Series  Residential/Light Commercial applications  Amp & Volt ratings  2, 3, or 4-Pole ZTG series  Pre-Engineered & Standard applications requiring dependability and ease of operation  Standard & Delayed Transition  Amp & Volt ratings  2, 3 or 4-Pole ZTS series  Spec Grade & Custom applications  Standard, Delayed, Closed Transition  Bypass versions available with all Transition modes  Amp ratings Volt ratings  2, 3 or 4-Pole

Introduction to ATS Scott Kolek Global Annual Power Quality Meeting Key Competitors & Differentiators – Europe & ME ASCO/ Emerson Socomec/ FG Wilson GE Zenith CB-Type (Schneider, Siemens, ABB) IEC Certified as tested for high duty cycles & reliability – as ATS (IEC , 2005) Power Continuity under adverse conditions (overloads, fault withstand) Genset and Panelbuilder OEM focus – products & services tailored to OEM needs. IEC Rated Frequent (33A) operation. Self-cert rd Party Cert to new 2005 Std + CE Mark by 12/06 Full 3 cycle SC withstands, 10x Overload switching Upstream CL fuses Req’d IEC Rated Frequent (33A) operation. 3 rd party Cert 1998 Std IEC Rated Infrequent (33B) operation Full 3 cycle SC withstands, 10x Overload switching CAT, Cummins, Kohler/SDMO all GE Zenith Partners

Introduction to ATS Scott Kolek Global Annual Power Quality Meeting ATS with UPS – Key Advantages Redundancy  Individual ATS, sized to UPS…versus large CB’s switching multiple UPS  Dedicated emergency wiring all the way from Gen(s) to UPS…versus single- point failure common bus schemes Selectivity  ATS designed to Withstand fault current vs. trip – permitting downstream devices time to isolate fault

Introduction to ATS Scott Kolek Global Annual Power Quality Meeting