Eaton ATC-100 Instructional Booklet

Also see for ATC-100: Instructional booklet Operation & maintenance manual

Contents

IB01602019E For more information visit: www.eaton.comInstructional BookletEffective: March 2010 Page 5O&M Manual for the Eaton ATC-100Automatic Transfer Switch Controller32G.Time Delay Neutral (TDN)This feature provides a time delay in the neutral position dur-ing the transfer and re-transfer operations during which boththe Utility source and the Generator source are disconnectedfrom the load circuit. TDN cannot be implemented on a trans-fer switch using a 2-position contactor.Jumper selectable at Disable (0 seconds) or Enable (2 seconds).32F. In-Phase TransitionProvides In-phase transition, which is a feature that will permita transfer or re-transfer between 2 available sources that havea phase angle difference of 8 degrees or less. The In-phasetransition feature includes permissible frequency difference andsynchronization time setpoints. In-phase transition is not cus-tomer selectable. In-phase will be implemented on 3-phase sys-tems but not on 1-phase systems. The "1-phase or 3-phase"jumper will determine if In-phase transition is performed. In-phase transition is attempted for 10 minutes on a 3-phase sys-tem. If unsuccessful, an open transition is performed. TimeDelay Neutral (TDN) feature will be disabled for 2-position con-tactor type automatic transfer switch. Time Delay Normal toEmergency (TDNE) will be fixed at 15 sec and Generator Over-frequency will be fixed at "OFF".Section 2: Hardware Description2.1 GeneralThe purpose of this section is to familiarize the reader with theATC-100 hardware, its nomenclature, and to list the unit’s specifi-cations.2.2 Front (Operator) PanelThe front panel, depending on the installation, is normally accessi-ble from the outside of a panel or door. The front panel provides ameans to:• alert the user to specific conditions;• perform an Engine Start;• perform a System Test; and• program a Generator Test.The ATC-100 front panel serves two primary functions: outputand input (see Figure 1). The output function consists of five LEDoutputs:1. Unit Status;2. Utility Available;3. Utility Connected;4. Generator Available; and5. Generator Connected.There are three input functions accessible through the pushbut-tons:1. Engine Start;2. Set Generator Test; and3. System Test.