background image

IB01602016E

For more information visit: www.eaton.com

Instructional Booklet

Effective: March 2014

Page

 

7

O & M Manual for the RLC1

Automatic Transfer Switch

3.3 ATC-100 Logic Panel

The ATC-100 is a microprocessor-based transfer switch logic con-

trol package.  The hardware and software of the controller contain 

the intelligence/supervisory circuits that constantly monitor the 

condition of the power sources.  It provides the intelligence neces-

sary for the operation of the ATS (Figure 7).

Figure 7.  ATC-100 Logic Control Panel.

The ATC-100 controller has an operating temperature of 

-20 to 70°C (-4 to 158°F).

The controller circuit board is protected by an insulating conformal 

coating.

The specifications, under normal operating conditions, are as fol-

lows:

Tolerance for voltage sensing function: ±1% of full scale

Tolerance for frequency sensing function: ±0.3 Hz of setting

3.4 RLC1 ATS Features

A variety of standard and optional features are available for Eaton 

ATSs.  

All features or combinations of features may not be avail-

able on specific ATSs

.  All features and/or accessories are Under-

writers Laboratories (UL) listed unless noted.

3.4.1 Standard Features

The following is a list of the standard features for the ATC-100 

Controlled ATS.

1.

Time Delay Normal to Emergency (TDNE)

This feature provides a time delay when transferring from the 

Utility to the Generator power source.  Timing begins when 

the Generator becomes available.  It permits controlled trans-

fer of the load circuit to the Generator.

Jumper selectable at 2 seconds or 15 seconds.

2.

Time Delay on Engine Starting (TDES)

This feature provides a time delay of the signal to initiate the 

engine/generator start cycle in order to override momentary 

power outages or voltage fluctuations of Utility.

Fixed at 3 Seconds.

3.

Time Delay Emergency to Normal (TDEN)

This feature provides a time delay of the re-transfer opera-

tion to permit stabilization of Utility.  Timing begins when the 

Utility becomes available.  If the Generator fails during tim-

ing, then re-transfer is immediate overriding the time delay.

Fixed at 5 Minutes.

4.

Time Delay for Engine Cool-down (TDEC)

This feature provides a time delay of the signal to initiate the 

engine/generator stop cycle after the re-transfer operation.  

This allows the engine/generator to cool down by running 

unloaded.  Timing begins on completion of the re-transfer 

cycle.

Fixed at 5 Minutes

5.

Generator Monitoring and Protection

This feature provides monitoring and protection based on the 

Generator voltage and/or frequency setpoints.  All feature 5 

functions are Failsafe operations.

5J. All Phase Undervoltage and Underfrequency Protection

Undervoltage:

Dropout: 80% of nominal

Pickup: 90% of nominal

Underfrequency:

Dropout: 90% of nominal

Pickup: 95% of nominal

5N.

All Phase Overfrequency

Overfrequency:

Dropout: 115% of nominal

Pickup: 110% of nominal

6.

Test Operators

Eaton ATSs are provided with a Test Pushbutton that simu-

lates a loss of the Utility power source as standard (Feature 

6B).  All programmed time delays (TDNE, TDEN, etc.) will be 

performed as part of the Test.  Engine run time of the Test is 

equal to the Generator Test (Feature 23) programmed set-

point.  All Tests are Failsafe protected.

6B. Test Pushbutton

Programmable setpoints include: 

1. Load or No Load Testing, or Off

2. Engine run time equal to the Generator Test

(Feature 23) setting

Summary of Contents for RLC1

Page 1: ...r the RLC1 Automatic Transfer Switch Instructional Booklet Description Page 1 Introduction 2 2 Receiving Handling and Storage 6 3 Equipment Description 6 4 Installation and Wiring 9 5 Functional Testi...

Page 2: ...r claims against the purchaser or user by its cus tomers resulting from the use of the information and descriptions contained herein 1 1 2 Safety Precautions All safety codes standards and or regulati...

Page 3: ...avail able the ATS remains connected to the generator power source ATSs automatically perform the transfer function and include three basic elements 1 Main contacts to connect and disconnect the load...

Page 4: ...rrent rating of this equipment is 100A and applicable at 240 Vac 60 Hz The ATS equipment is enclosed in a NEMA 3R enclosure and listed for UL applications 1 4 Environmental and Operational Conditions...

Page 5: ...t age underfrequency overfrequency if applicable setpoint ranges for the nominal voltage and frequency setting for a time exceeding 0 5 seconds after the Time Delay Emergency Fail TDEF time delay expi...

Page 6: ...mpact at all times and do not double stack Once the equipment is at the installation site and ready to be installed the packaging material can be removed Refer to Section 4 of this manual for specific...

Page 7: ...Starting TDES This feature provides a time delay of the signal to initiate the engine generator start cycle in order to override momentary power outages or voltage fluctuations of Utility Fixed at 3 S...

Page 8: ...to transfer the load circuit to the Generator power supply All Feature 26 monitoring and protection functions are Fail safe operations 26P All Phase Undervoltage Protection Adjustable Undervoltage Dro...

Page 9: ...are listed for application by UL In addition Eaton ATSs are listed in File E38116 by Underwriters Laboratories Inc under Standard UL 1008 This standard covers the requirements for ATSs intended for us...

Page 10: ...hoose a location that offers a flat rigid mounting surface capa ble of supporting the weight of the enclosed ATS equipment see Figure 8 100 A and 200 A Standard Figure 9 100 A SE Figure 10 200 A SE Pr...

Page 11: ...it www eaton com Instructional Booklet Effective March 2014 Page 11 O M Manual for the RLC1 Automatic Transfer Switch Figure 9 Dimensions and Plan View of SE RLC1 ATS in 100 A Figure 10 Dimensions and...

Page 12: ...ATSs Carefully strip the insulation from the power cables to avoid nick ing or ringing of the conductor strands Prepare the stripped con ductor termination end by cleaning it with a wire brush If alu...

Page 13: ...re 15 the ATS 1 and the generator 2 are connected to the power supply The ATS 1 and emergency distribution panel 3 receive utility power from a dedicated breaker in the utility service panel 4 The ATS...

Page 14: ...nother typical installation for loads can be considered see Figure 17 Refer to Figure 18 for a loads connection dia gram Figure 17 Typical Installation of a Residential or Light Commercial ATS The swi...

Page 15: ...Phase A Utility Phase C Phase B Phase A Generator Phase C Phase B Phase A Generator Utility Utility Generator Control Power Generator K1 Com K1 NO DC_Output Generator Closed K2 Com K2 NO Earth Ground...

Page 16: ...ove terminal block wiring Step 1 Figure 20 shows two tension clamp terminal blocks There is a large one and small one but the operation is the same for both A small tool such as a blade screwdriver wi...

Page 17: ...tral voltages across the generator line terminals to ensure that the generator emergency voltage is correct If necessary make adjustments to the voltage regulator on the generator according to the man...

Page 18: ...or move the lever down to go to generator 7 Once the manual operation is complete and automatic opera tion is desired connect the sources of power 8 Check for 120 Vac at the plug across the Utility Ut...

Page 19: ...ust or foreign matter is present a more frequent maintenance schedule should be followed It is suggested that visual inspections of the equipment be made on a regular basis not just during regularly s...

Page 20: ...the con ductor surfaces due to arcing Inspect the secondary control connections for damage and control wiring for insulation integrity c Inspect the contactor for dust dirt soot grease moisture or co...

Page 21: ...For more information visit www eaton com Instructional Booklet Effective March 2014 Page 21 O M Manual for the RLC1 Automatic Transfer Switch 7 3 Maintenance Log DATE ACTION Example 01 01 04 Inspected...

Page 22: ...rts Table 4 lists the part numbers to use when ordering replacement components To order replacement components contact an authorized Eaton sales repre sentative Figure 25 Field Replaceable Components...

Page 23: ...GROUND CABLE CONNECTIONS NEUTRAL JUMPER NEUTRAL CABLE CONNECTIONS COMPONENT PART NUMBER ATS MODEL Contactor 8160A99G51 100 A Contactor 8160A99G52 200 A ATC 100 Controller ATC 100 100 200 A Harness RL...

Page 24: ...REGARDING 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...

Reviews: