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IB01602046E

For more information visit: www.eaton.com

Instruction Booklet

Effective: July 2010

Page

 

17

2-Position Contactor Based 

Non-Automatic Transfer Switch

Section 6: Testing and Problem Solving

6.1 Testing

After the non-automatic transfer switch equipment is initially 

installed or during planned outages, the installation should be 

tested to ensure that all equipment operates properly.  This 

attention to detail will help avoid unexpected malfunctions.  

Mechanical and/or electrical tests should be performed as 

described in this section.

The frequency of subsequent testing should be based on recom-

mendations of the Genset manufacturer.

For manual and non-automatic (electrical) operation of the trans-

fer switch refer to Section 5 in this instruction booklet.

6.2 Problem Solving

A basic problem solving effort is the first step to take prior to 

calling for assistance. Frequently, the effort will successfully 

address most problems encountered. In addition, several problem 

solving procedures are presented here which are specific to the 

type of switches or circuit breakers used in this equipment.

If a problem persists after having completed the problem solving 

procedure, contact an Eaton representative for further assis-

tance. When calling for assistance, the following is the minimum 

information required to properly address the need:

1. General Order Number (GO#) of transfer switch, plus related 

Item Number.

2. Catalog and/or Style Number of transfer switch.

3. Actual location of transfer switch (type of facility, address, 

etc.).

4. Company name.

5. Name and position of individual representing company.

6. Basic description of situation as it exists.

7. Any results of problem solving steps taken and/or readings 

taken.

Section 6.2.1 Transfer Switch Appears Inoperative (Manual 

Operation)

Step 1:

Initially verify that there is no voltage on any source 

(Source 1 or Source 2) inside the transfer switch.

Step 2:

Attach the handle to the manual lever (see Figure 19) 

and rotate the lever down to go to Source 1. 

Step 3:

Rotate the lever down again to go to Source 2.

Following above steps, if the transfer switch does not transfer 

between two sources, contact factory personnel

Figure 19.Troubleshooting Manual Operation of the Transfer 

Switch

  

WARNING

HIGH VOLTAGES ASSOCIATED WITH OPERATIONAL TRANSFER 

SWITCH EQUIPMENT PRESENT A SHOCK HAZARD THAT CAN 

CAUSE SEVERE PERSONAL INJURY OR DEATH.  USE EXTREME 

CAUTION TO AVOID TOUCHING ELECTRICAL CONNECTIONS 

WHENEVER INSPECTING OR TESTING THE EQUIPMENT.

IN ADDITION, IMPROPER OPERATION OF THE GENERATOR SET 

PRESENTS A HAZARD THAT CAN CAUSE SEVERE PERSONAL 

INJURY OR DEATH.  OBSERVE ALL SAFETY PRECAUTIONS IN YOUR 

GENERATOR SET OPERATIONS AND INSTALLATION MANUALS.

 

WARNING

HAZARDOUS VOLTAGES IN AND AROUND NON-AUTOMATIC 

TRANSFER SWITCH EQUIPMENT DURING THE PROBLEM SOLVING 

PROCESS CAN CAUSE SEVERE PERSONAL INJURY AND/OR 

DEATH.  AVOID CONTACT WITH ANY VOLTAGE SOURCE WHILE 

PROBLEM SOLVING.

  

WARNING

ONLY PROPERLY TRAINED PERSONNEL, FAMILIAR WITH THE NON-

AUTOMATIC TRANSFER SWITCH EQUIPMENT AND ITS ASSOCI-

ATED EQUIPMENT, SHOULD BE PERMITTED TO PERFORM THE 

PROBLEM SOLVING FUNCTION.  IF AN INDIVIDUAL IS NOT QUALI-

FIED TO PERFORM THE PROBLEM SOLVING FUNCTION, THE INDI-

VIDUAL SHOULD NOT ATTEMPT ANY OF THESE PROCEDURES.

Summary of Contents for NTCEC2X20400WRU

Page 1: ...utomatic Transfer Switch Instruction Booklet Description Page Introduction 2 Receiving Handling and Storage 6 Equipment Description 7 Installation and Wiring 11 Operation 16 Testing and Problem Solvin...

Page 2: ...llation application or main tenance activity please contact an authorized Eaton sales repre sentative or the installing contractor 1 1 1 Warranty and Liability Information No warranties expressed or i...

Page 3: ...ically electrical operation Conversely if con nected to Source 2 and Source 2 power source fails non auto matic transfer switch will remain connected to the Source 2 power source When Source 1 power s...

Page 4: ...ficant amount of relevant information that pertains to a particular piece of equipment The Catalog Number Identification Table Table 2 provides the required interpretation information An example is of...

Page 5: ...nection Re Transfer Re transfer is defined as a change of the load connection from the Source 2 to the Source 1 Source 1 Source 1 is the primary source normal source normal power source or normal Sour...

Page 6: ...dy for installation Once the top packaging is removed from the shipment the enclosure door can be opened A plastic bag of documents will be found in the enclosure usually attached to the inside of the...

Page 7: ...nd disconnect the load to and from the different power sources The power contactor is mechanically and electrically interlocked to prevent the two sets of main contacts from being closed simultaneousl...

Page 8: ...hown Connected to the 480 Vac Taps 3 4 Logic Panel The logic panel provides ability to transfer from Source 1 to Source 2 when Source 2 is at sufficient voltage and frequency Conversely it also provid...

Page 9: ...ontact This feature provides 1 dry form C contact that indicates the position of the Source 1 power switching device 15F Source 2 Position Indication Contact This feature provides 1 dry form C contact...

Page 10: ...480VAC by providing a low imped ance surge path to ground while supporting rated volt age It provides LED indication 3 6 Enclosure The rugged steel non automatic transfer switch enclosure is sup plie...

Page 11: ...on requires solidly mounting the enclosed unit and connecting power cables and auxiliary pilot circuits Physi cal mounting procedures and power cable connections are cov ered in this section All other...

Page 12: ...s securing the har ness to the inside of the door Carefully remove the hinge pins then the door from the enclosure Step 2 Install the required upper and lower mounting bolt anchors and the two upper m...

Page 13: ...lectrical procedures as outlined in Section 6 to verify that the equipment is installed and operating properly Table 4 Transfer Switch Equipment Wire Sizes WARNING POWER CONDUCTORS MAY HAVE VOLTAGE PR...

Page 14: ...ormers contained in a steel case mounted in the enclosure To change the voltage from the factory default 600 Vac follow the steps detailed below Step 1 Loosen the six screws securing the cover of the...

Page 15: ...inserting a small flathead screwdriver into the square tool hole with the flat surface of the screw driver against the back wall of the hole With a little bit of force push the screwdriver in on a sli...

Page 16: ...peration is accomplished by adding required indication lights and push buttons located on the front device panel to the operating mechanism of the 2 position contactor With the transfer switch connect...

Page 17: ...ddress etc 4 Company name 5 Name and position of individual representing company 6 Basic description of situation as it exists 7 Any results of problem solving steps taken and or readings taken Sectio...

Page 18: ...HIS EQUIPMENT DISCONNECT THE LINE POWER FROM THEN LOCK OUT IF POSSIBLE THE NEXT HIGHEST DISCONNECT DEVICE FAILURE TO FOLLOW THIS PROCEDURE COULD CAUSE SEVERE PERSONAL INJURY AND OR DEATH STEP ACTION a...

Page 19: ...tic Switch 480VAC 4 Pole Cat 68C8471G13 200A AG Switch up to 240VAC 2 Pole Cat 68C8471G01 200A AG Switch up to 240VAC 3 Pole Cat 68C8471G02 200A AG Switch up to 240VAC 4 Pole Cat 68C8471G03 400A Domes...

Page 20: ...ator Supply E1 E2 E3 For 4 pole transfer switches connect the load cables TN Source 1 or utility supply NN and Source 2 or generator supply EN Refer to Figure 22 for the location of all parts discusse...

Page 21: ...oltage on load terminals Step 5 Turn 2 position selector switch to Source 1 position and verify that Source 1 ON light should turn ON Step 6 Turn the Utility Source 1 power OFF Step 7 Start the genera...

Page 22: ...For more information visit www eaton com IB01602046E Instruction Booklet Page 22 Effective July 2010 2 Position Contactor Based Non Automatic Transfer Switch Notes...

Page 23: ...IB01602046E For more information visit www eaton com Instruction Booklet Effective July 2010 Page 23 2 Position Contactor Based Non Automatic Transfer Switch Notes...

Page 24: ...ION 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 otherwise for any spec...

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