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Instruction Booklet 

IB 70-8698

 

Instruction Manual for the Eaton RTC-100

Automatic Transfer Switch Controller

eaton Corporation

 www.eaton.com

Effective December 2009

1.5 Functions/Features

The primary function of RTC-100 controller is to accurately monitor 

the Utility and Generator power sources and provide the necessary 

intelligence to operate the ATS in an appropriate and timely man-

ner.  In addition, the RTC-100 controller provides status information 

through on-board and remote indicators.
The following is a list of the features of the RTC-100 controller.

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 20 or 50 seconds.  Default is 20 sec-

onds.

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 the utility source. 

 

Fixed setting of six seconds (For 2 wire start only)  

Some generators have their own time delay start.

3. 

Time Delay Emergency to Normal (TDEN) 

 

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

to permit stabilization of Utility source.  Timing begins when 

the Utility becomes available.  If the Generator fails during 

timing, then re-transfer is delayed for up to 6 seconds to allow 

the generator to recover. 

 

Fixed at 10 Seconds.

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 

operation.   

 

Fixed setting of five minutes.

5. 

Generator Monitoring and Protection

 

This feature provides monitoring and protection based on the 

Generator voltage setpoints.  All feature 5 functions are fail-

safe operations.

5J.    All Phase Undervoltage Protection

 

Dropout: 168 Vac (70% of 240 Vac nominal) 

Pickup:   192 Vac (80% of 240 Vac nominal)

7. 

Time Delay Emergency Fail (TDEF)

 

This feature provides a time delay that prevents a connected 

Generator source from being declared “failed” in order to 

override momentary generator fluctuations.  If the Generator 

remains in the failed state then, after the TDEF timer expires, 

the transfer switch will proceed with the programmed 

sequence for re-transfer (if the utility source is available). 

 

Fixed setting of 6 Seconds

12.  Power Source Annunciation

 

This feature provides LEDs to indicate power source  

availability.

12C.  Utility - Connected - EGSU Only

 

This feature provides a white LED that when lit, indicates the 

utility is connected.

12D.  Generator - Connected - EGSU Only

 

This feature provides a yellow LED that when lit, indicates the 

generator is connected.

12G.  Utility - Available

 

This feature provides a green LED that, when lit, indicates that 

the Utility is available.

12H.  Generator - Available

 

This feature provides a red LED that, when lit, indicates that 

the Generator is available.

15N.  Load Shed (Active)

 

Two sets of contacts are available and can be used to control 

large connected loads on the generator (i.e. air conditioners, 

hot tubs, etc.).  The contacts are rated for 250 Vac, 5 amps. 

See section 4.1.4 for connection and operation.

 

23K.  Generator Test Selectable - Off / 7 14 / 28 Day Interval 

This feature provides for automatic test operation of the 

generator.  Available test cycles are 7, 14, or 28 days with a 

15-minute duration.
Programmable jumpers allow for selection of three test 

cycles:

• 

Generator Start/Run Only (No Load);

• 

Generator Test with Load Transfer; or

• 

Disabled

This is a “Failsafe” operation.

26.   Utility - Monitoring and Protection
 

This feature provides Utility monitoring and protection func-

tions.  If the Utility power source fails, then the RTC-100 will 

begin the sequence of operations necessary to transfer the 

load circuit to the Generator power source.  All Feature 26 

monitoring and protection functions are failsafe operations.

26D.  Transfer to Generator

 

This feature provides the capability for an external contact clo-

sure to initiate a transfer from Utility to Generator.  After the 

Generator becomes available, TDNE will time out before the 

transfer to Generator takes place.  Re-transfer will occur when 

the external contact is opened or under a failsafe condition.  A 

connection point for the connection of an external contact is 

provided.

26P.   All Phase Undervoltage Protection

 

Dropout: 168 Vac (70% of 240 Vac nominal)

 

Pickup:   192 Vac (80% of 240 Vac nominal)

Содержание RTC-100

Страница 1: ...cription 5 3 Operation 6 4 Programming 7 5 Maintenance Troubleshooting and Replacement 18 Description Page Effective December 2009 Instruction Booklet IB 70 8698 Instruction Manual for the Eaton RTC 1...

Страница 2: ...nce of this device warning THE WARNINGS AND CAUTIONS INCLUDED AS PART OF THE PROCEDURAL STEPS IN THIS DOCUMENT ARE FOR PERSONNEL SAFETY AND PROTECTION OF EQUIPMENT FROM DAMAGE AN EXAMPLE OF A TYPICAL...

Страница 3: ...of loads to ensure that overloading of the genera tor does not occur Provide start signals for all makes and models of generators Utility sensing 2 wire start etc 1 4 Glossary With respect to their u...

Страница 4: ...provides a time delay that prevents a connected Generator source from being declared failed in order to override momentary generator fluctuations If the Generator remains in the failed state then aft...

Страница 5: ...rt schemes Connector J8 contains 2 contacts for the active load con trol portion of the controller These contacts are discussed in section 4 1 4 J9 provides connection for the control input and the tr...

Страница 6: ...tomatically initiate an immediate transfer of power when the power fails or the voltage level drops below a preset value and an alternate source of power is available 3 2 Operating Voltage and Measure...

Страница 7: ...gramed The 50 second setting may be used to allow for a longer warm up period of the Generator The FREQ jumper enables the end user to program the RTC 100 for an operating frequency of either 50 or 60...

Страница 8: ...d to the generator To perform a manual test the GEN TEST push button See Figure 3 needs to be momentarily NO LONGER THAN 2 SECONDS pressed and released The TDES Time Delay Engine Start timer will star...

Страница 9: ...for the Eaton RTC 100 AutomaticTransfer Switch Controller eaton corporation www eaton com Effective December 2009 Figure 3 Generator Test Plant Exercise Jumpers and Generator Test Pushbutton Jumpers s...

Страница 10: ...fer from utility to generator or from generator to utility does NOT occur when it should the CONNECTED LED s WHITE or YELLOW depending on which source should be connected will flash see Figure 4 Once...

Страница 11: ...ad see Figure 5 The primary load has priority over the secondary load The loads can be any load that provides a voltage to turn on i e Air Conditioner hot tub etc The relays will function with a volta...

Страница 12: ...RTC 100 AutomaticTransfer Switch Controller eaton corporation www eaton com Effective December 2009 Figure 6 Typical Connections of Controlled Loads Non Thermostatically Controlled Note that the Grou...

Страница 13: ...on RTC 100 AutomaticTransfer Switch Controller eaton corporation www eaton com Effective December 2009 Figure 7 Typical Connections of Controlled Loads Thermostatically Controlled Note that the Ground...

Страница 14: ...to function properly It the STARTING watts are not know then enter the RUNNING watts as the both the RUNNING and STARTING watts on the potentiom eters The RTC 100 utilizes this information to determi...

Страница 15: ...h starting KW available from the generator the load will not be allowed to energize Both the starting and running KW setting must be met before the load will be allowed to be started If the load on co...

Страница 16: ...he Load Is the Generator powering the Load Y N Are controlled load energize signal s present Y N Is this the first measurement with Load on Is this the first measurement with Load on Y Is Current kW 8...

Страница 17: ...or Max Current kW Y Close relay 1 if called for N Shed Load N Is Active Load Control RLC 100 enabled Is Active Load Control RLC 100 enabled Y Measure Load kW Measure Load kW A A C C Is load kW 90 of R...

Страница 18: ...to the transfer switch Step 9 Place the generator control selector switch in the AUTO position after the controller has been replaced The Generator may start but will shut down within 5 minutes Test...

Страница 19: ...19 Instruction Booklet IB 70 8698 Instruction Manual for the Eaton RTC 100 AutomaticTransfer Switch Controller eaton corporation www eaton com Effective December 2009 Notes...

Страница 20: ...arties This literature is not intended to and does not enlarge or add to any such contract The sole source governing the rights and remedies of any purchaser of this equipment is the contract between...

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