Instructional Booklet

Page 30

Effective: March 2007

Fixed and Drawout Magnum Transfer Switches

If a problem persists after having completed the problem solving procedure, contact an Eaton representative for further assistance. When calling for assistance, the following is the MINIMUM infor- mation required to properly address the need:

1.Shop Order Number (SO #) or General Order Number (GO #) of the transfer switch, plus related Item Number;

2.Catalog and/or Style Number of the 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; and

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

WARNING

THIS CLOSED TRANSITION PRODUCT CONTAINS A SPECIAL CON- TACT ARRANGEMENT (OVERLAPPING CONTACTS). MISUSE CAN RESULT IN DEATH, SEVERE PERSONAL INJURY, AND/OR PROPERTY DAMAGE.

8.2.1 Transfer Switch Appears Inoperative

Step 1: Verify that all plugs and sockets are properly intercon- nected.

Step 2: Verify that the correct system voltage appears at Source 1 switch. Measure the voltage at the breaker lugs.

Step 3: Verify that the voltage selection plug is in the proper posi- tion to match the system voltage.

Step 4: Look for any obviously burned components. Determine the cause and rectify, if possible. Replace any defective components after the cause is determined.

Step 5: For closed transition, refer to Figure 25 for manual oper- ating instructions. Verify whether or not the system volt- age now appears on the load terminals.

If YES: Check the logic for problems in the respective logic instruction book.

If NO: Check all power connections and the switching mechanism.

Step 5: For open transition, press the Push-To-Close button on the Source 1 switching device. Verify whether or not the system voltage now appears on the load terminals.

If YES: Check the logic for problems in the respective logic instruction book.

If NO: Check all power connections and the switching mechanism.

8.2.2Transfer Switch Will Not Automatically Transfer to Source 1

Step 1: Check for the proper line voltage on N1, N2, and N3.

Step 2: Is the Source 1 switching device charged? If YES: Continue 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 terminals S2B1O and S2B11 on the Source 2 switching device (shunt trip). Does the voltage measure 120 Vac ±10 volts? Record the reading.

If YES: Check the shunt trip in the Source 2 switch.

If NO: Check the wiring to S2B10 and S2B11.

Step 5: Measure the voltage between terminals S1B12 and S1B13 on the Source 1 switching device (spring release coil). Does the voltage measure 120 Vac ± 10 volts? Record the reading.

If YES: Check the spring release coil in Source 1 switch- ing device.

If NO: Check the wiring to S1B12 and S1B13.

8.2.3Transfer Switch Will Not Automatically Transfer to Source 2

Step 1: Check for the proper line voltage on E1, E2, and E3.

Step 2: Is the Source 2 switching device charged? If YES: Continue with the other procedures.

If NO: Go through Section 8.2.4 first before continuing.

Step 3: Is the Source 1 switching device OPEN? If YES: Proceed to Step 5.

If NO: Proceed to Step 4.

Step 4: Measure the voltage between terminals S1B10 and S1B11 on the Source 1 switching device (shunt trip). Does the voltage measure 120 Vac ± 10 volts? Record the reading.

If YES: Check the shunt trip in the Source 1 switch.

If NO: Check the wiring to S1B10 and S1B11.

Step 5: Measure the voltage between terminals S2B12 and S2B13 on the Source 2 switching device (spring release coil). Does the voltage measure 120 Vac+ 10 volts? Record the reading.

If YES: Check the spring release coil in Source 2 switch.

If NO: Check the wiring to S2B12 and S2B13.

8.2.4 Transfer Switch Will Not Automatically Recharge Switches

Step 1: Measure the voltage between terminals B15 and B14 on the switching device that does not automatically recharge. Does the voltage read 120 Vac + 10 volts? Record the reading.

If YES: Check the electrical operator inside the switching device.

If NO: Verify the wiring to B15 and B14.

Step 2: If problem persists, contact Eaton.

For more information visit: www.Eaton.com

IB01602011E

Page 29 Page 31
Page 30
Image 30
Eaton Electrical Magnum Transfer Switch manual Transfer Switch Appears Inoperative
Page 29 Page 31

Magnum Transfer Switch specifications

The Eaton Electrical Magnum Transfer Switch is a premium solution designed for reliable power management in various applications, ranging from data centers to critical facilities. Known for its robust performance and advanced technology, the Magnum Transfer Switch ensures seamless transitions between utility and backup power sources, thereby enhancing operational continuity.

One of the standout features of the Eaton Magnum Transfer Switch is its unparalleled reliability. The switch is designed with heavy-duty components that provide up to 3,000 amps of continuous current with exceptional fault protection. Its construction is particularly suited for environments where power availability is crucial, ensuring that critical loads remain powered even during grid failures.

The Magnum Transfer Switch incorporates advanced technologies that simplify the operation and monitoring of power systems. It includes microprocessor-based controls that offer users customizable settings and configurations. These smart controls enable automatic transfer operations, ensuring quick response times when switching between power sources. The intelligent diagnostics feature further enhances reliability by offering predictive maintenance alerts, which help in identifying potential issues before they lead to failures.

Safety is a priority with the Magnum Transfer Switch. It is equipped with multiple interlocking features that prevent accidental switchovers and ensure that maintenance can be performed without the risk of electrical accidents. The design adheres to stringent safety standards, providing users with peace of mind.

Flexibility is another characteristic of the Eaton Magnum Transfer Switch. It offers a range of mounting options and configurations to fit diverse installation needs, whether in commercial infrastructures or industrial settings. The switch can be integrated with various power systems, making it a versatile choice for project developers and facility managers.

Additionally, the Magnum Transfer Switch supports eco-friendly initiatives through energy-efficient designs that minimize power loss during transfer operations. This feature is increasingly important as businesses aim to reduce their carbon footprint and enhance sustainability.

In summary, the Eaton Electrical Magnum Transfer Switch stands out for its reliable performance, advanced technologies, and robust safety measures. It is a versatile solution that meets the demands of modern power management, ensuring that critical systems operate continuously, even in the face of unexpected power interruptions. With its combination of efficiency, safety, and flexibility, the Magnum Transfer Switch remains a trusted choice for professionals in various industries.
Top Page Image Contents