Which type of enclosures used in motors?
Ten Common Types of Motor Enclosures
- Open Drip Proof (ODP) …
- Totally Enclosed Fan Cooled (TEFC) …
- Totally Enclosed Air Over (TEAO) …
- Totally Enclosed Non-Ventilated (TENV) …
- Totally Enclosed Force Ventilated (TEFV)/ Totally Enclosed Blower Cooled (TEBC) …
- Weather Protective 1 (WP1) …
- Weather Protective 2 (WP2)
Which type of motor enclosure is best?
When considering which motor enclosure is best, look at the type of cooling the motor requires and most importantly the environment that the motor will be operating in. Open Drip Proof – ODP motors are almost always the least expensive of all motors which often times makes them the preference of equipment OEM’s.
How many types of enclosures are there?
There are two categories of enclosures: open and totally enclosed.
What is totally enclosed?
TEFC (totally enclosed, fan-cooled) motors are equipped with an external fan to circulate outside air to the motor. … Although air does not freely move between the inside and outside of the motor, construction is not air- or liquid-tight.
What is FLP enclosure?
An enclosure for electrical apparatus that will withstand, without injury, any explosion of the prescribed flammable gas that may occur within it under practical conditions of operation within the rating of the apparatus (and recognized overloads, if any, associated therewith), and will prevent the transmission of …
What is a DP motor enclosure?
Drip-Proof/Open Drip-Proof (DP/ODP)—Designed for use on horizontal motors, such as fire pump motors, these prevent drops of liquid or solid particles from entering ventilating openings in the enclosure at any angle from 0 to 15 degrees downward from the vertical.
What is an open enclosure motor?
An open motor has ventilating openings which permit passage of external air over and around the motor windings. … A totally enclosed motor is constructed to prevent the free exchange of air between the inside and outside of the frame.
Which type of enclosure is used for pump?
A water resistant motor enclosure is required if a pump is being cleaned and sanitized on a regular basis. In this case, Totally Enclosed Wash Down (TEWD) is most likely needed. This type of enclosure protect the motor from wet environments and high water pressure during wash downs.
What is back EMF in motor?
back EMF in Electrical Engineering
Back EMF is the system in the coil of an electric motor that opposes the current flowing through the coil, when the armature rotates. When the speed varies, the winding characteristics may fluctuate, resulting in variation of back EMF.
How cooling is achieved in motor enclosure?
The totally enclosed unit cooled (TEUC) type of enclosure uses an air-toair heat exchanger and receives its cooling through an external blower. The blower draws air into the heat exchanger through the air inlet. An internal blower circulates the internal cooled air throughout the inside of the motor.
What enclosure means?
Definition of enclosure
1 : the act or action of enclosing : the quality or state of being enclosed. 2 : something that encloses. 3 : something enclosed a letter with two enclosures.
What are enclosures used for?
Enclosures protect electrical equipment in diverse building, industrial, and utility applications. They may also shield equipment from electromagnetic and radio frequency interference. Enclosures are often used to protect the following types of equipment: Circuit breakers, contactors, control panels, and switches.