Open Drip Proof (ODP) motors are usually much cheaper than TEFC motors, but are highly susceptible to whatever contaminants are present in the ambient environment. Anything and everything in the air surrounding the motor is pulled through and around the interior of the motor.
What is the difference between ODP and Tefc Motors?
An open drip proof or ODP motor is a type of motor that typically runs cooler and does not overheat. … On the other hand, a totally enclosed fan cooled, or TEFC motor has a closed off chamber which requires the use of an external fan to blow air over it.
What does Tefc mean on a motor?
A Totally Enclosed, Fan-Cooled (TEFC) electric motor is a type of industrial electric motor with an enclosure that does not permit outside air to freely circulate through the interior of the motor. An external fan blows outside air over the frame of the motor to cool it.
What are TEAO & ODP enclosures?
The more common of these enclosure types are Open machines: Drip-Proof (ODP), and Weather Protected (WPI/WPII); Totally Enclosed machines: Fan Cooled (TEFC), Pipe-Ventilated (TEPV), Air Over (TEAO), Non-Ventilated (TENV), Air to Air (TEAAC), Water to Air (TEWAC), and Explosion-proof (XP); and those with encapsulated or …
What are the two types of motor enclosures?
The two general classifications of motor enclosures are open and totally enclosed. 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.
What are 4 common types of motor enclosures?
The most common types of enclosures are:
- Open Drip Proof (ODP) …
- Weather Protected (WP1 / WP2) …
- Totally Enclosed Fan Cooled (TEFC) …
- Totally Enclosed Non-Ventilated (TENV) …
- Totally Enclosed Air Over (TEAO) …
- Totally Enclosed Forced Ventilated (TEFV) …
- XP (Explosion Proof)
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.
What is a DP motor?
DP – Drip-Proof
An open motor in which the ventilating openings are so constructed that drops of liquid or solid particles falling on it, at any angle not greater than 15 degrees from the vertical, cannot enter either directly or by striking and running along a horizontal or inwardly inclined surface.
What does TEAO mean on a motor?
Totally Enclosed Air Over/Airtight (TEAO)
This motor has a dust-tight frame or enclosure. It is typically installed in the airstream, and the air movement generated by the fan passes over the motor to provide cooling. TEAO motors would be used in areas with direct drive where the motor is in the airstream.
What is motor enclosure type?
An enclosure protects a motor from contaminants in the environment in which it is operating. In addition, the type of enclosure affects the cooling of the motor. Enclosures are categorized as either open or totally enclosed, and there are different types of enclosures within each category.
What is DP 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.
Which of the following type of motor enclosure is safest?
Which of the following types of motor enclosure is safest?
- A. Totally enclosed.
- Totally enclosed fan cooled.
- Open type.
- Semi closed.
What is TENV enclosure?
Well – the answer is simply the motor is Totally Enclosed, and Non-Ventilated. Based on NEMA (National Electrical Manufacturers Association) definition, TENV states that the motor housing is fully enclosed and is not ventilated with a fan. The motor is being cooled unassisted (natural convection cooling).
What is the importance of name plate of motor?
Much of the information you need to identify an electric motor is contained on the motor’s nameplate. The nameplate also provides some basic information about a motor’s operating characteristics. Proper motor selection is extremely important for safe, efficient, and reliable motor operation.
What is the difference between Tefc and TENV Motors?
Totally Enclosed, Fan-Cooled (TEFC) Motors have an external fan which circulates outside air to the motor. Totally Enclosed, Nonvented (TENV) Motors do not have air openings. While air does not freely move between the inside and outside, the motor’s construction is not air- or liquid-tight.
What are the types of enclosure?
The 7 most common types of enclosures are:
- Open Drip Proof (ODP) Premium Efficient Super-E motor with Open Drip Proof (ODP) construction by BALDOR. …
- Totally Enclosed Fan Cooled (TEFC) Weg NEMA Premium Efficiency – Three Phase TEFC Motors.