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

Introduction to ATSScott Kolek – ATS Global Product Manager2006 Annual Power Quality Meeting

Introduction to ATSScott Kolek

Global Annual Power Quality Meeting 20062

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)



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% 99.9999Bridge the Gap(8 hours/yr downtime) (1 second/yr downtime)

99.9% 99.9999Bridge 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



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



StandardTransition

(No Center Position)

Delayed Transition

(With Center OFF Position)NOTE: “OFF” Position

indicatesNeither Source connected

Closed Transition(Make-Before-Break Operation)

NOTE: “P” Position indicates both sources paralleled for 5

cycles

Standard Transfer Switch: Types



StandardTransition

(No Center Position)

DelayedTransition

(With Center OFF Position)NOTE: “OFF” Position

indicatesNeither Source connected

Closed Transition(Make-Before-Break Operation)

NOTE: “P” Position indicates bothsources paralleled for 5 cycles

BypassATS

StandardATS

Bypass Transfer Switches: Types



GE Zenith Range of ATS - OverviewZTX Series Residential/Light Commercial applications 40-400 Amp & 120-480 Volt ratings 2, 3, or 4-Pole

ZTG series Pre-Engineered & Standard applications requiring

dependability and ease of operation Standard & Delayed Transition 40-3000 Amp & 120-600 Volt ratings 2, 3 or 4-Pole

ZTS series Spec Grade & Custom applications Standard, Delayed, Closed Transition Bypass versions available with all Transition modes 40-4000 Amp ratings 120-600 Volt ratings 2, 3 or 4-Pole



Key Competitors & Differentiators – Europe & ME ASCO/

EmersonSocomec/FG WilsonGE Zenith

CB-Type (Schneider, Siemens,

ABB)

IEC Certified as tested for high duty cycles & reliability – as ATS (IEC 60947-6-1, 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 1998. 3rd 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. 3rd

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



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



Documents

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