CAT LEHE4651-04 User's Manual
Contents
1. O ee eoe o o ce O am E Aa a OOQ e e o RTI O O O ee R12 _ _O _ _ _ _ SBP G S12 512P eeo o o o o t TAW u A Ba PA I UMD 2 0 vi a mae s w e oe o o o o VEN Standard Accessory included in the group package O Optional Accessory not included butcan be added to group package Optional Accessory Can not be used with accessory having the same symbol wa O Denotes an Accessory with2 circuits asa standard Denotesan Accessory with circuitsasa standard Delayed Transition Units Only Optional pr 40 400 Amp CTS SERIES ACCESSORY DEFINITIONS continued HT 1 2 Heater and Thermostat 208 240V 1 380 600V 2 mounted and inter wired in enclosure requires larger enclosure for 40 200A K Frequency Meter Analog Door mounted Frequency Indication on the controller LNP Center off position LCD Indicator L1 LED light indicates Switch in Source 2 position L2 LED light indicates Switch in Source 1 position L3 LED light indicates Source 1 available L4 LED light indicates Source 2 available AUTOMATIC TRANSFER SWITCH CTS SERIES ACCESSORY DEFINITIONS continued LonWorks LonWorks Communication Module M1 Single Phase Amp Meter Analog M2 Three Phase Amp Meter Analog M90 EPM2000 True RMS Digital Meter with display Amps Volts Power Energy Power Factor and Frequency2. or e R15D Load Shed to Neutral Position e S12 P Auto Manual Selector Switch an Suse CATERPILLAR Screenshot of ATS operating parameters on Cat Switchgear HMI Combined with the optional Modbus Communication Card the PSGS package allows for integration with Cat Switchgear This feature allows ATS operating parameters to be displayed on the PowerLynx 3000 HMI as well as on the optional Remote Monitoring Software Supply of this feature set affords real time monitoring of the ATS as well as direct control over the following parameters from the Switchgear HMI e Timer Settings e Pickup Dropout settings e Testing Functions e Alarm functions e Manual operation AUTOMATIC TRANSFER SWITCH CAT EY Dow aa 2000909059595 CTS SERIES ACCESSORY DEFINITIONS CTS SERIES ACCESSORY GROUP MATRIX 6P Microprocessor activated test switch Momentary 6A Hardwired test switch Maintained 6AP Microprocessor activated test switch Maintained 6BK Hardwired test switch Maintained Auto Momentary Test Key operated 6CK Hardwired test switch Maintained Auto Maintained Test Key operated Al Auxiliary Contact S P D T Normal Source 1 Failure A1E Auxiliary Contact S P D T Emergency Source 2 Failure A3 Auxiliary Contact closed in emergency Source 2 Additional available 10 max on CTS Series and need to be specified A4 Auxiliary Contact closed in normal Source 1 Additional available
3. 3 Line LED Display 50 60 Hz Universal Operation 1 or 3 phase Standard Modbus RTU RS485 communications capability M90A Includes Modbus communication card and factory wiring between EPM2000 and Modbus communication card M90B Includes Modbus communication card Ethernet communication adapter and factory wiring between EPM2000 and Modbus communication card M91 EPM6000 True RMS Digital Meter with display Amps Volts Power Energy Power Factor and Frequency THD Certified energy and demand metering Meets ANSI C12 20 and IEC 687 Accuracy Classes Front IrDA Port Laptop Connection Standard Modbus RTU RS485 or DNP 3 0 communications capability M91A Includes Modbus communication card and factory wiring between EPM6000 and Modbus communication card M91B Includes Modbus communication card Ethernet communication adapter and factory wiring between EPM6000 and Modbus communication card Modbus Modbus RTU Communication Module N1 Running Time Indicator Door mounted N2 Operation Counter Door Mounted P1 Engine Start Timer adjustable to 6 seconds P2 Engine Start Timer Extended time delay adjustable to 300 seconds Q2 Peak shave remote load test area protection Relay S P D T Need to specify voltage 120 VAC 24 VAC 24 VDC 120V default standard Q3 Inhibit transfer to emergency Source 2 load add relay Relay S P D T Need to specify voltage 120 VAC 24 VAC 24 VDC
4. 90 2286 36 914 48 1219 1395 633 4000 90 2286 47 1194 62 1575 1595 723 90 2286 47 1194 62 1575 1850 839 gt QAO N NO O 8 ww DW gt gt gt Application Notes 1 Dimensions are listed in inches mm and weights in pounds kg 2 Includes 1 25 door projection beyond base depth Allow a minimum of 3 additional depth for projection of handle light switches pushbuttons etc All dimensions and weights are approximate and subject to change without notice and are not for construction use Special enclosures NEMA 3R 4 12 etc may include mounting tabs etc Consult the published dimension drawings for details Normal and emergency may be ordered inverted on any switch The load may be inverted 500 1200 amps Consult the factory for details Special lug arrangements may require different enclosure dimensions For certified drawings contact Caterpillar Packing materials must be added to weights shown Allow 15 additional weight for cartons skids crates etc Add 4 in height for removable lifting lugs 4000 amp depth dimension shown is standard Depending on your cable conduit requirements you may desire a deeper enclosure Consult Caterpillar for further details 10 Lug adapters for 3000 4000 amp limits may be staggered length for ease of entrance Consult Caterpillar for details 11 Ventilation louvers on side rear of enclosure at 3000 and 4000A One side or rear must b
5. 120V default standard Q7 Inhibit transfer to normal Source 1 Relay S P D T Need to specify voltage 120 VAC 24 VAC 24 VDC 120V default standard R1 1 R1 3 Over Voltage sensing for normal Source 1 single R1 1 or three R1 3 phase R15 R15D Load Shed Should Source 2 become overloaded a signal can be given to switch to the Neutral position LEHE4651 04 CAT R16 Phase rotation sensing of Normal Source 1 and Emergency Source 2 R26 R26D Interruptible Power Rate Provisions Allow transfer out of Source 1 position to Mid position or dead Source 2 Alarm and Pre Signal circuit included Need to specify voltage 120 VAC 24 VAC 24 VDC R50 In Phase monitor between Normal Source 1 and Emergency Source 2 to allow transfer S5P Microprocessor activated auto manual retransfer selector switch for transferring to Normal Source 1 includes microprocessor activated YN accessory 12P Microprocessor activated auto manual retransfer selector switch for transferring to Normal Source 1 includes microprocessor activated YN amp YE accessory 13P Microprocessor activated commit no commit on transferring to Emergency Source 2 with enable disable settings S14K Keyed selector switch for retransfer to normal test auto SW1 Auto Off Start Engine control selector Door mounted keyed or non keyed operation available sw2 Auto Off Engine control selector Door mounted keyed or non key
6. 10 max on CTS Series and need to be specified A62 Motor disconnect and staged restart 1 contact AB3 Auxiliary contact closed in bypass emergency Source 2 S P D T Standard up to 400A Additional available 10 max on CBTS Series and need to be specified AB4 Auxiliary contact closed in bypass emergency Source 1 S P D T Standard up to 400A Additional available 10 max on CBTS Series and need to be specified CALIBRATE Microprocessor activated calibration feature CDP Programmable exerciser daily 7 14 28 365 days user selectable with or without load CDT Exerciser no load timer CTAP Chicago transfer alarm panel mounted in door of enclosure Includes 3 aux contacts and fuse DS Disconnect Switch Disconnects source voltage to transfer power panel DT DELAYED TRANSITION ONLY Time Delay from Neutral Switch position to Source 2 on retransfer DW DELAYED TRANSITION ONLY Time Delay from Neutral Switch position to Source 2 on retransfer E Engine Start Relay EL P Event log of last 16 events ETHERNET Ethernet Communication Adapter Requires Modbus Communication Module F Fan contact closed when engine runs LEHE4651 04 Accassorins Group Packages ep ay ane Oe o oo o a2 oa Clbre coT cor 0 a a DT H a sae se 5 E e o o o ew o o oo o o u o o o o o r o o o n eeo o o o o
7. AUTOMATIC TRANSFER SWITCH fee le ae E eeel FEATURES ELECTRICAL RATINGS e Ratings 40 to 4000 amperes e 2 3 or 4 Poles e NEMA 1 3R 4 4X and 12 e Available to 600 VAC 50 or 60 Hz e Suitable for emergency and standby applications on all classes of load 100 tungsten rated through 400 amps e UL 1008 listed at 480 VAC e CSA C22 2 No 178 certified at 600 VAC e IEC 947 6 1 listed through 480 VAC PERFORMANCE FEATURES e Contact transfer speed less than 100 milliseconds e High close in and withstand capability e Temperature rise test per UL 1008 conducted after overload and endurance tests in unventilated enclosure exceeds UL requirements e Equipped with the MX250 Control Package LEHE4651 04 CTS SERIES AUTOMATIC TRANSFER SWITCH The Cat CTS Series Automatic Transfer Switch ATS is configurable for applications requiring the dependability and ease of operation found in a full featured power contactor type transfer switch The CTS Series is equipped with the MX250 controller that is designed for the most demanding transfer or bypass switch applications DESIGN AND CONSTRUCTION FEATURES e Double throw interlocked operation e Electrically operated mechanically held by a simple over center mechanism e Silver alloy contacts with separate arcing contacts on 600 amp and above e Arc quenching grids enclosed arc chambers and wide contact air gap for superior source to source isolation on all un
8. B CISPR 22 Exceeds EN55011 amp MILSTD 461 Class 3 EN61000 4 2 Class B Level 4 EN61000 4 3 ENV50140 10v m EN61000 4 4 EN61000 4 5 IEEE C62 41 EN61000 4 6 ENV50141 EN61000 4 11 e Equipment Controls and Power Section Seismic Test Qualified to IBC 2003 IEEE 693 2005 e Enclosures meet the requirements of UL 508 UL 50 ICS 6 ANSI C33 76 and NEMA 250 e Quality System ISO 9001 Registered LEHE4651 04 CAT This ruggedly built family of power contactor switches has been specifically designed for transfer switch duty with dependability versatility and user friendliness of prime concern The CTS power panel components consisting of power switching contacts drive mechanism and terminal lugs are mounted on a specially formed backplane Logic devices including microprocessor control auxiliary time delays and special accessory equipment are assembled on the door for ease of maintenance and separation from the power section They are connected with a numbered wiring harness equipped with a disconnect plug that allows isolation of the control panel for maintenance CTS SERIES METHOD OF OPERATION When the normal source fails or the voltage drops to a predetermined point usually 80 of nominal if required a circuit is closed to start the engine generator set When the emergency source reaches 90 of rated voltage and 95 of rated frequency the drive solenoid is energized through the emergency coil control relay causi
9. e clear to afford proper airflow a aa re rt foe l oO a i oid f Figure A Figure B Figure C new ON OD gt LEHE4651 04 7 AUTOMATIC TRANSFER SWITCH AL CU UL LISTED SOLDERLESS SCREW TYPE TERMINALS FOR EXTERNAL POWER CONNECTIONS Switch Size Amps 40 80 Cables per Pole Normal Emergency amp Load Terminals Range of Wire Sizes 8 to 3 0 AWG Switch Size Amps 800 1000 1200 amp Load Terminals Cables Range of 2 AWG to 600 MCM 100 225 6 AWG to 250 MCM 1600 260 6 AWG to 350 MCM 2000 400 4 AWG to 600 MCM 3000 600 NOTES Line and load terminals are located in rear and arranged for bus bar connection 2 AWG to 600 MCM 4000 1 Special terminal lugs and neutral bars are available at additional cost Contact factory and advise cable sizes and number of conductors per pole 600 MCM 2 Fully rated solid neutral 3x standard normal power connector provided when required by system voltage 3 Normal and emergency may be ordered inverted on any switch Load may be inverted 600 1200 amps Consult the factory for details 4 Lug adapters for 3000 4000 amp units may be staggered length for ease of entrance Consult the factory for details 5 Special lug arrangements may require different enclosure dimensions For certified drawings contact Caterpillar Information contained in this publication may b
10. e considered confidential Discretion is recommended when distributing Materials and specifications are subject to change without notice CAT CATERPILLAR their respective logos Caterpillar Yellow the Power Edge trade dress as well as corporate and product identity used herein are trademarks of Caterpillar and may not be used without permission LEHE4651 04 11 12 www Cat ElectricPower com 2012 Caterpillar All Rights Reserved Printed in U S A
11. e identical to the main contacts having the same current carrying and high withstand closing ratings as the mains They are designed to break last and make first to negate the possibility of transients while switching the neutral SAFE MANUAL OPERATION The CTS manual operator consists of a large easy to use handle that fits securely for manual operation during installation and maintenance or in an emergency Every CTS is provided with an operator inhibit switch to disconnect the electrical drive prior to maintenance Fully enclosed wrap around arc covers shield the main contacts and mechanical components preventing operator exposure during manual operation TRANSFERRING LARGE MOTOR OR HIGHLY INDUCTIVE LOADS Some loads especially large motors receive severe mechanical stress if power is transferred out of phase while the motor is still rotating Also back EMF generated by a motor can result in over currents that can blow fuses or trip circuit breakers The CTS Series offers four solutions to these problems 1 Optional Universal Motor Disconnect Contact This load control disconnects a large motor via its control circuit for an adjustable period of time prior to transfer in either direction For switching multiple motors the motor disconnect contact with staged restart disconnects the motors prior to transfer and brings them back on line sequentially 2 Accessory R50 Phase Monitor This feature compares the phase angle betwe
12. ed operation available SW3 Source Priority Selector Switch Door mounted Allows selection of Source 1 or Source 2 to be the Prime Source Transfer Switch will transfer to selected Prime Source if that Source is available keyed or non keyed operation available T Retransfer to Normal Source 1 adjustable time delay T3 W3 Pre signal contact on transfer to Normal Source 1 or Emergency Source 2 during test Engine stop cool adjustable cool down timer UMD Pre and post transfer output adjustable time range Functions in both directions Includes 2 circuits Additional circuits available Vi Voltage imbalance between phases 3 Phase only WwW Adjustable time delay on transfer to Emergency Source 2 YEN Bypass transfer timers function soft key switch in microprocessor AUTOMATIC TRANSFER SWITCH CAT CTS SERIES DIMENSIONAL SPECIFICATIONS Ampere Height Width Depth Reference Application Rating A B C Figure Weight Notes 40 80 100 amp 150 24 610 18 457 11 279 57 26 24 610 18 457 11 279 60 27 225 260 amp 400 46 1168 24 610 14 356 165 75 46 1168 24 610 14 356 170 68 600 74 1880 40 1016 20 508 380 172 74 1880 40 1016 20 508 430 195 800 1000 amp 1200 74 1880 40 1016 20 508 455 206 74 1880 40 1016 20 508 540 245 1600 amp 2000 90 2286 36 914 48 1219 1010 458 90 2286 36 914 48 1219 1160 526 3000 90 2286 36 914 48 1219 1130 513
13. en both sources of power and prevents transfer until the two are approximately in phase within a self adjusting range The CTS s high speed transfer action coupled with the MX series microprocessor control logic ensure closures at or near zero degree phase difference LEHE4651 04 CTS SERIES ATS 400 amp 2 pole Series CTSD The CTSD offers a delayed transition on transfer switches 40A and above This programmed center off position allows for the full decay of rotating motors or transformer fields It can also be used for load shedding of selected circuits or other applications which require a means to disconnect the load from either source Many UPS system manufacturers recommend delayed transition switches to support sequencing of their systems Reference the CTSD supplement for further details Series CTSCT Cat closed transition switches combine CTSD operation during a source failure with a highly engineered control system that allows momentary paralleling 100 ms of two acceptable sources thereby limiting the impact of transfer on the load Reference the CTSCT supplement for further details AUTOMATIC TRANSFER SWITCH STANDARD FEATURES MSTD PACKAGE Feature Function 6 P Momentary Test Switch J2E J2N Adj over under freq S1 and S2 A3 Aux Contact S2 position L1 L2 Source Position LEDs A4 Aux Contact S1 position L3 L4 Source Available LEDs Calibrate Volt and Freq calibration LN P Center Off P
14. its e Control circuit disconnect plug and drive inhibit switch for safe maintenance e Components accessible for inspection and maintenance without removal of the switch or the power conductors e Mechanical indicator and contact chamber cover designed for inspection safety and position designation AUTOMATIC TRANSFER SWITCH THE CAT CTS SERIES OF AUTOMATIC TRANSFER SWITCHES The Cat CTS Series power contactor Type transfer switch makes use of a fully programmable configurable microprocessor based controller to allow the utmost in application flexibility Further the CTS Series is offered in a wide array of configurations enabling it to meet the needs of even the most highly critical load Available configurations include 40 4000 Amps e CTS Automatic Transfer Switches e CTSD Delayed Transition Transfer Switches e CTSM Manual Transfer Switches 100 4000 Amps e CTSCT Closed Transition Transfer Switches e CBTS Automatic Transfer Bypass Switches e CBTSD Delayed Transition Bypass Switches e CBTSCT Closed Transition Bypass Switches All CTS products meet or exceed industry requirements to allow specification and installation with confidence e UL 1008 listed through 480 VAC e CSA C22 2 No 178 listed through 600 VAC e IEC 947 6 1 listed through 480 VAC e Codes and Standards NFPA 70 99 101 110 NEC 517 700 701 702 IEEE 446 241 NEMA ICS2 447 e Controls tested in accordance with IEEE 472 ANSI C37 90A EN55022 Class
15. ng the main contacts to disconnect the load from the normal source and connect it to the emergency source After the drive solenoid has completed its electrical stroke and is seated the emergency coil control relay opens to disconnect it The transfer switch is now mechanically locked in the emergency position When normal voltage is restored to a predetermined point usually 90 of nominal the control voltage sensing energizes The normal side coil relay closes and after the drive solenoid has completed its electrical stroke and is seated the coil control relay opens to disconnect it The transfer switch is now mechanically locked in the normal position DRIVE MECHANISM All CTS switches employ the simple over center principle to achieve a mechanically locked position in either normal or emergency and a high speed drive assures contact transfer in 100 ms or less High contact pressure and positive mechanical lock allow for high withstand and closing ratings far exceeding UL requirements AUTOMATIC TRANSFER SWITCH NEUTRAL SWITCHING The CTS Series is available in true four pole designs for multi source power systems that require switching the neutral The neutral contact is on the same shaft as the associated main contacts This design ensures positive operation and prevents any possibility that the neutral contact will fail to open or close as is possible when the neutral pole is an add on accessory The neutral contacts ar
16. osition LCD CDT Load No Load Exerciser P1 Source 2 Start Time Delay DS Auto Inhibit Switch gt 600A R50 In Phase Monitor DT Time Delay Neutral to S1 S13 P Transfer Commit DW Time Delay Neutral to S2 T Source 1 Stable Time Delay E Engine Start Contact U Source 2 Stop Time Delay EL P Log of last 16 events and System Data VI Voltage Imbalance K P S1 and S2 Freq Indication W S2 Stable Time Delay YEN Bypass T and W Time Delays Available with Delayed Transition switches only OPTIONAL PACKAGES Exerciser MEXE Package includes e STDS Functions e A1 A1E S1 S2 Failure aux contact e A3 A4 One additional contact each e CDP Programmable exerciser e Q2 Remote Peak Shave Load Test e R16 Phase Rotation Sensing Controls MCON Package includes e EXES Functions e Q3 Remote Inhibit transfer to Emergency e Q7 Inhibit Transfer to Normal e T3 W3 Elevator Pre Signal Aux Contacts e UMD Universal Motor Load Disconnect LEHE4651 04 CAT Sensing MSEN Package includes e EXES Functions e Normal Source Over voltage sensing 3 phase e Q7 Inhibit Transfer to Normal e 12P Auto Manual Selector Switch Special MSPE Package includes e CONS Functions e SENS Functions e SSP Manual transfer to Normal Switch Replaces S12P Switchgear MPSG Package includes e SPES Functions e Additional set of A3 A4 Contacts e R15 Load Shed to Dead Normal
Download Pdf Manuals
Related Search