A TEFC (totally enclosed fan cooled) motor is a far better choice, as it “totally encloses” the interior, with some exceptions.
What is Tefc type 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 is the difference between an ODP and a Tefc motor?
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 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.
Can Tefc Motors get wet?
Totally Enclosed Fan Cooled (TEFC) motors are more adaptable to outdoor and high moisture areas. Their enclosed design does not have openings that allow free exchange of air between the inside and outside of the motor, but even so, they are not airtight or watertight.
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.
Can Tefc motors be used in hazardous locations?
Class I, Division 2 Motors
TEFC (Totally Enclosed, Fan Cooled) motors and ODP (Open Drip -proof) motors can be used in Division 2 locations provided they do not have ignition sources such as arc-producing brushes or switching mechanisms.
What is a drip proof motor?
TEFC (Totally Enclosed Fan Cooled) describes a totally enclosed motor housing, that has an external fan located at the back of the motor and during operation it directs air forward across the motor housing. The motor housing will have a ribbed structure that are a type of heat sink to help dissipate the heat.
What is the primary purpose of the motor enclosure?
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 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 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 happens if a motor gets wet?
The harm done to motors and generators by flooding extends beyond rusted shafts and contaminated bearings and lubricants. Even brief moisture intrusion can compromise the insulation system, making the windings vulnerable to ground failures.
Can an electric motor get wet?
If any water or any moisture observed in an electric motor, it should be dried out. This will ensure the safe running of a motor as well as Air Compressor. Various methods are available for “Drying Out” electric motor. … Generally speaking, most commonly used open-type motors are not suitable for wet environments.
Can a Tefc motor be used outdoors?
A totally enclosed, fan-cooled (TEFC) motor is much more adaptable to outdoor locations and high moisture areas. With a bit of care, you can expect this type of motor to work well and have a long life.