The necessity to protect the equipment, needs no emphasis. The daily failures due to one reason or the other is reminding us always. A little money extra spent on the protective means, is worthwhile than facing the breakdown and failures. The motors are invariably subjected to abnormal circumstances (other than the designed parameters) such as

Installed directly under sun/rain.

Installed in dusty atmosphere.

Installed in the vicinity of flying objects (e.g. waste paper, clothes, leaves etc.)

Hit by falling object

Excessive heating due to fire or heat in the vicinity.

Splash of oil/acid/ corrosive substances

The motors should be protected from abnormal eventualities and should be guarded to minimize the risk of damages.

PRODUCTS

To protect the equipment PROTECTION GUARD is suggested, which is a cover made of FRP ( hand lapping process)

WHY FRP? Because FRP is

Resistant to corrosive environment

Mechanically strong

No water absorption

Highly insulating material

U.V. Stabilised

Aesthetic looks

Maintenance free

Lightweight

Excellent weatherability

One piece moulded.

LOUVERS are FRP Moulded and provided all around the protection guard (due care has been taken towards the cooling requirement of the motor under full load conditions). The ~a ~ advantage of FRP MOULDED LOUVERS IS THE LIFE, these louvers will last upto the life of the shell ( Unlike the other type of louvers that buckle in a short span under the influence of U .V. RAYS from the sunlight.)

Have appropriate fixing arrangement for the ease of installation at site.

MECHANICALLY STRONG. Extra thickness is given at appropriate places, enabling this to withstand the Stresses and Shocks to which it is normally subjected to at site during its lifespan.

Lifting handle is provided.

SHAPE AND SIZE

The size of the MOTOR PROTECTION SHELL is based on the physical dimensions of the motor cover it is so selected that a uniform clearance of at least 50mm is maintained on all sides with respect to the motor body for the purpose of:

Proper circulation of air along with the louvers

For the ease of installation/ lifting

It Should Cover The Motor Fully To Protect From

Rain water, Chemical or water spillages, Accidental fall of some material or the hit of some flying object under abnormal circumstances.

INSTALLATION :

Glass Fiber & Unsaturated polyester Resin
The Glass Reinforcement fibers are arranged in multidirectional orientation for maximum uniform strength and the right grade of resin is used, the composition is controlled within the recommended ratio and the colours are achieved by adding pigment to the resin itself.

The use of particular grade of Resin depends upon the duty to be served and the resistance to corrosion due to chemical required. Special additives are mixed to make the moulding - FIRE RETARDANT, U.V, STABLISED & ANTI STATIC.

THE NEED OF LOUVERS IN FRP MOTOR PROTECTION SHELL
The losses produced in the core and conductor of electrical motors are converted in to heat, which raises the temperature of the several parts. The presence of ambient air and cooling or ventilation system tends to drop the temperature of the motor. The temperature rise actually depends upon the conditions of cooling & amount of heat produced. The final temperature is reached when the rate of heat PRODUCTION and DISSIPATION EQUALS.

This is a general table showing the relation between FRAME SIZE AND MOTOR RATING.
( For exact rating, please refer the motor manufacturer's catalogue)

NOTE : Rotating part is to be separately guarded Please mention the FRAME SIZE, FLP/NFLP, MOUNTING.