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Eaton ATC-900, Manual

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Eaton ATC-900 Manual Download Page 29

IB140015EN

For more information visit: www.Eaton.com

Instructional Booklet

Effective: August 2014

Page

 

29

ATC-900 Magnum Tranfer Switch O & M Manual

Figure 38. Transfer from Normal Switching Device to Normal Bypass Switching Device, Steps 1-8.

Rack Out and

Inspect/Maintain

Switch

Place Generator
In OFF Position

Cutler-Hammer

Digitrip 3000

Operational

High Load

Communications
Trip

Time Overcurrent

Curve Shape

Pickup (x In)

Time Multiplier

Pickup (x In)

Time

Program

Phase

Ground

I

I

I

RMS Amperes

Settings/Test Time/Trip Cause

Test

Program

Test

Pickup (x In)

Instantaneous

Short Delay

Amp Demand

I

Cutler-Hammer

Phase

Phase

Phase

Phase

Ground

Digitrip 3000

Operatio

High 

Commun

Time Overcurrent

Curve Shape

Pickup (x In)

Time Multiplier

Time

Program

Phase

Ground

RMS 

Settings/Test 
Time/Trip Cause

Short Delay

Cutler-Hammer

Digitrip 3000

Operational

High Load

Communications
Trip

Time Overcurrent

Curve Shape

Pickup (x In)

Time Multiplier

Pickup (x In)

Time

Program

Phase

Ground

I

I

I

RMS Amperes

Settings/Test Time/Trip Cause

Test

Program

Test

Pickup (x In)

Instantaneous

Short Delay

Amp Demand

I

Cutler-Hammer

Phase

Phase

Phase

Phase

Ground

Digitrip 3000

Operatio

High 

Commun

Time Overcurrent

Curve Shape

Pickup (x In)

Time Multiplier

Time

Program

Phase

Ground

RMS 

Settings/Test 
Time/Trip Cause

Short Delay

Cutler-Hammer

Digitrip 3000

Operational

High Load

Communications
Trip

Time Overcurrent

Curve Shape

Pickup (x In)

Time Multiplier

Pickup (x In)

Time

Program

Phase

Ground

I

I

I

RMS Amperes

Settings/Test Time/Trip Cause

Test

Program

Test

Pickup (x In)

Instantaneous

Short Delay

Amp Demand

I

Cutler-Hammer

Phase

Phase

Phase

Phase

Ground

Digitrip 3000

Operatio

High 

Commun

Time Overcurrent

Curve Shape

Pickup (x In)

Time Multiplier

Time

Program

Phase

Ground

RMS 

Settings/Test 
Time/Trip Cause

Short Delay

2

Source 1

3 to 5

Rack Source 1

Switch Back

into Its

Location

Switch Will

Automatically

close

Cutler-Hammer

Digitrip 3000

Operational

High Load

Communications
Trip

Time Overcurrent

Curve Shape

Pickup (x In)

Time Multiplier

Pickup (x In)

Time

Program

Phase

Ground

I

I

I

RMS Amperes

Settings/Test Time/Trip Cause

Test

Program

Test

Pickup (x In)

Instantaneous

Short Delay

Amp Demand

I

Cutler-Hammer

Phase

Phase

Phase

Phase

Ground

Digitrip 3000

Operatio

High 

Commun

Time Overcurrent

Curve Shape

Pickup (x In)

Time Multiplier

Time

Program

Phase

Ground

RMS 

Settings/Test 
Time/Trip Cause

Short Delay

         6 to 8

Summary of Contents for ATC-900

Page 1: ...scription Page Introduction 3 Receiving Handling and Storage 10 Equipment Description 10 Installation and Wiring 16 Operation 22 Drawout and Fixed Switching Devices 24 Operation of the Bypass Isolatio...

Page 2: ...TALLATION OPERATION OR MAINTENANCE AND ALL DETAILS AND VARIA TIONS OF THIS EQUIPMENT DO NOT PURPORT TO BE COVERED BY THESE INSTRUCTIONS IF FURTHER INFORMATION IS DESIRED BY THE PURCHASER REGARDING HIS...

Page 3: ...lost from the Source 1 power source the transfer switch transfers the load to the Source 2 power source This transfer can be automatic or manual depending upon the type of transfer switch equipment b...

Page 4: ...trically operated and bypass isolation transfer switch are the available types for the configuration described in this manual Operation of the ATS and the bypass isolation switch only are dis cussed i...

Page 5: ...rs with short time ratings UL 1066 short time withstand rating SOURCE 1 SOURCE 1 SOURCE 1 SOURCE 1 BYPASS SOURCE 1 SOURCE 1 SOURCE 1 AVAILABLE SOURCE 2 ISOLATED ISOLATED POSITION SOURCE 2 POSITION SOU...

Page 6: ...esign Bypass iso lation automatic transfer switches are provided with all drawout type designs In addition the 4000A and 5000A designs come standard with drawout magnum power devices Figure 6 The Magn...

Page 7: ...s connects to provide for the drawout functioning The operating mechanism is a two step stored energy mechanism either manu ally or electrically operated When withdrawn on the extendable carriage rail...

Page 8: ...wo slotted mounting holes to facilitate mounting 1 4 Transfer Switch Catalog Number Identification Transfer switch equipment catalog numbers provide a significant amount of relevant information that p...

Page 9: ...les Position 8 2 2 poles 3 3 poles 4 4 poles Enclosure Position 14 S NEMA 1 R NEMA 3R T Thru Door Design Logic Certification Position 15 U UL Listed R UL Recognized X No Listing V 9 MG B 3 X R U Frame...

Page 10: ...ed in a safe place 2 2 Handling As previously mentioned the transfer switch equipment is pack aged for fork lift movement Protect the equipment from impact at all times and DO NOT double stack Once th...

Page 11: ...ermal and short circuit protection in either or both switching devices is available Section 3 6 These continuous duty devices are rated for all classes of loads In addition they have high dielectric s...

Page 12: ...CLOSED posi tion and the status of the stored energy mechanism The switching device is closed by energizing a solenoid that releases the spring mechanism A shunt trip will open the switch ing device...

Page 13: ...not on the outside the switch is older than November of 2014 Taps are available to switch out see section 4 6 for instructions Taps are provided for 208 240 480 600 for North America and 220 380 415 f...

Page 14: ...a brief description The feature numbers corresponds to the internal codes and some of these numbers may be on the product drawings Also see Table 5 ATC 900 Fea tures for a compact list Table 5 also in...

Page 15: ...door and door mounted devices The hinges have removable hinge pins to facilitate door removal The doors are supplied as standard with thumbscrew and padlock latches Cable entry holes are the customer...

Page 16: ...ays or cover the logic in a way that restricts adjustments Maintain proper electrical clearances between live metal parts and grounded metal For installation and maintenance purposes the Source 1 and...

Page 17: ...rify that the cables comply with local electrical codes Standard ATS equipment as supplied from the factory will accommodate the wire sizes shown in Table 5 Carefully strip the insulation from the pow...

Page 18: ...pulled into position Step 5 Carefully strip the insulation from the power cables Avoid nicking or ringing of the conductor strands Pre pare the stripped conductor termination end by cleaning it with...

Page 19: ...rce 2 ET1 The control power transformers are mounted behind a removable panel see Figure 22B Figure 22 Transformer and Taps Figure 22A Figure 22B Remove the transformer pack cover by loosening the 4 s...

Page 20: ...ctions are located there The S2 generator start s terminal blocks are red in color Note Prior to making the engine start connection to the switch on bypass isolation units set the engine generator con...

Page 21: ...om the con troller These are wired out from the ATC 900 to terminal blocks for easier access With I O Modules there could be up to 20 in and 20 out Form C available Some I O may be fixed depending on...

Page 22: ...indicator window shows whether the switch is open or closed Figure 25 Close Switch by Pushing Close Button 5 2 Automatic Transfer Switch The operating sequence of an ATS is dictated by the switch s s...

Page 23: ...Logic Connectors 3 Verify OPEN flags 7805C60H05 MANUAL CLOSE BUTTON Operating Instructions Do Not Use Without Reading Manual OVERLAPPING CONTACTS must be Synchronized SOURCE 1 AND SOURCE 2 WARNING 78...

Page 24: ...be completed 6 1 1 Switching Device Positioning The Magnum drawout switching device has four normal positions REMOVE Withdrawn Figure 29 DISCONNECT Figure 32 TEST Figure 31 CONNECT Figure 30 The REMOV...

Page 25: ...om Instructional Booklet Effective August 2014 Page 25 ATC 900 Magnum Tranfer Switch O M Manual Figure 30 Switching Device in the CONNECT Position Figure 31 Switching Device in the TEST Position Figur...

Page 26: ...rs See Figure 30 through 33 Red Connect Yellow Test and Green Disconnect To remove the switching device from its compartment follow the procedure just described using a counter clockwise ratcheting mo...

Page 27: ...e following standard features 1 AMBER LED on the ATC 900 Controller to indicate if the Source 1 power source is available 2 AMBER LED on the ATC 900 Controller to indicate if the Source 2 power source...

Page 28: ...Source 1 position energized GREEN LED on the ATC 900 con troller will no longer be illuminated 5 Inspect and or perform the needed maintenance on the Source 1 switching device 6 Rack in the Source 1 s...

Page 29: ...Hammer Phase Phase Phase Phase Ground Digitrip 3000 Operatio High Commun Time Overcurrent Curve Shape Pickup x In Time Multiplier Time Program Phase Ground RMS Settings Test Time Trip Cause Short Del...

Page 30: ...ically close and Source 1 position energized GREEN LED will be illu minated 11 Move the generator selector switch to the AUTO position 12 The Source 1 switching device is now back in automatic oper at...

Page 31: ...illuminated 2 Close the Source 1 bypass switching device manually and the Source 1 bypass RED light will illuminate 3 Move the generator selector switch to the OFF or AUTO posi tion Section 8 Testing...

Page 32: ...with the other procedures If NO Go through section 8 2 4 first before continuing Step 3 Is the Source 2 switch OPEN If YES Proceed to Step 5 If NO Proceed to Step 4 Step 4 Measure the voltage between...

Page 33: ...led for any safety hazards including personnel safety and fire hazards Exposure to certain chemical vapors can cause deterioration of electrical connections Inspect for accumulated dirt loose hardware...

Page 34: ...placement instructions 9 3 1 Cover Removal and Replacement A 3 8 wrench or socket and ratchet is required to perform this procedure Cover Removal Step 1 Locate the bolts used to secure the cover to th...

Page 35: ...ding on certain options ordered The best way to order a harness is to call tech support or sales with the GO number There is a new top shelf for the switch that moves some compo nents that do not need...

Page 36: ...ional Booklet Page 36 Effective August 2014 ATC 900 Magnum Tranfer Switch O M Manual Figure 45 Rear of Switch SENSING HARNESS 68C8190G02 4 0 to 500 KCMIL NEUTRAL TERMINAL AL D2247A22T OR 500 to 750 KC...

Page 37: ...IB140015EN For more information visit www Eaton com Instructional Booklet Effective August 2014 Page 37 ATC 900 Magnum Tranfer Switch O M Manual Notes...

Page 38: ...Instructional Booklet Page 38 Effective August 2014 ATC 900 Magnum Tranfer Switch O M Manual For more information visit www Eaton com IB140015EN Notes...

Page 39: ...IB140015EN For more information visit www Eaton com Instructional Booklet Effective August 2014 Page 39 ATC 900 Magnum Tranfer Switch O M Manual Notes...

Page 40: ...ARDING THE INFORMATION RECOMMENDATIONS AND DESCRIPTIONS CONTAINED HEREIN In no event will Eaton be responsible to the purchaser or user in contract in tort including negligence strict liability or oth...

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