Question: How do you read motor nameplate data?

What purpose does the information on a motor nameplate serve?

The nameplate FLA is a very important rating that is used to select the correct wire size, motor starter, and overload protection devices necessary to serve and protect the motor.

What does the code letter on a motor nameplate indicate about the motor?

For motors less than ½ horsepower, the code letter on the nameplate represents the locked-rotor kVA. On larger motors, it identifies the locked-rotor kVA per horsepower. … Generally, the farther a code letter is from A, the higher the inrush current per horsepower.

How do I find my motor details without nameplate?

Use a strobe tachometer to determine motor RPM and then set up a generic motor in the database for that RPM. If loading cannot be provided by the operator use the acquired data and RPM to approximate loading. You can view the power factor for a value around 88 to 92 to approximate full load.

What is the advantage of knowing how do you read product name plates?

Nameplates clearly communicate all information your customer needs to use your product correctly and safely. When a customer or operator of your equipment is needing immediate insight on how to use your product, one of the first places they look to is the labeling.

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What does ph mean on a motor?

Phase (PH) – Pump motors are available in either Single or Three Phase. The three phase option is used almost exclusively for commercial applications. Single phase motors are the standard in residential pools. RPM – Revolutions Per Minute (RPMs) is the measure of how many times the motor shaft will spin in a minute.

What is Code G on a motor?

Indicating locked rotor code letters for electrical motors

NEMA Code Letter KVA/HP with locked rotor Approximate Mid-Range Value
F 5.0-5.59 5.3
G 5.6-6.29 5.9
H 6.3-7.09 6.7
J 7.1-7.99 7.5

What are motor codes?

Motor Codes is a government backed body set up by the Society of Motor Manufacturers and Traders (SMMT) and approved by the Chartered Trading Standards Institute. It is also approved to act as an Alternative Dispute Resolution body.

What is motor Code K?

NEMA – The National Electrical Manufacturer’s Association – who sets the design standards for motors, has established a NEMA Code letter designation to classify motors by the ratio of locked rotor kVA per horsepower. … 1 1/2 to 2 hp: Locked Rotor Code L or M, 9.0 – 11.19 kVA. 3 hp : Locked Rotor Code K, 8.0 – 8.99 kVA.