Questions_and_Answers_W91ZLK-18-T-0002-16NOV.pdf

Questions and Answers

W91ZLK‐18‐T‐0002

As Of 16 November 2017:

Q1: What is the general application of the motor? (For example, drive a compressor, pump fan?)

A1: The purpose of the motors is to test if a 800‐kW, 4160V generator can power a motor without tripping the set breaker. Both motors will be connected together (at the shift). Only one will be connected to the generator set.

Q2: Can you confirm the motor will be run on an inverter(vfd)?

A2: The motors will be operated by an 800‐kW, 4160V generator.

Q3: If exact drop‐in replacement is not available will you accept a motor including a transition base mount?

A3: This is acceptable.

Q4: Any additional specifications that you have would be helpful.

A4(1): Dual voltage 2300/4160.

A4(2): Vendors are welcome to ask more specific questions prior to 16 November 11am.

Q5: The UPDATED specification document indicates a dual RPM(speed) for the motor of “900‐3600” and unless the motor is rated with a dual horsepower rating the motor should not have a dual speed.

Can you clarify? In addition, if the multiple speeds are an indicator that this motor will be powered and controlled from a variable frequency drive, please verify the speed range required.

A5: The specifications was not a reference to dual speed. Motor speed can be 900rpm, 1800rpm, or

3600rpm.

Q6: Will this belted or direct coupled?

A6: It will be direct coupled.

Q7: Are there any inertia or torque requirements (if so, please describe)?

A7: No requirements.

Q8: Can you verify shaft diameter? (The shaft diameter listed does not match the frame size)

A8: The shaft diameter requirement is 4.75 in.

Q9: Is this an existing motor or new application?

A9: This is a new application.

Q9a: If existing motor, can you provide a picture of the nameplate?

A9a: Not applicable.

Q9b: If existing motor, are you looking for a direct replacement or modified replace?

Q9b: Not applicable.