INTERNSHIP REPORT The Kerala State Electronics Development Corporation

(KSEDC)

MOOKAMBIKA TECHNICAL CAMPUSMUVATTUPUZHA

Submitted by, Kripa Unnikrishnan - 7 ECE

PNEUMATIC PRODUCTS GROUP (PNG)

INDUSTRIAL TRAINING AT KELTRON

INTRODUCTION

The Kerala State Electronics Development Corporation (KSEDC) established in 1973

First Electronics Development Corporation in India in the state government sector.

They introduce the state-of-the-art technology in the field of Control and Instrumentation (C&I) .

There is four self-profit generating Strategic Business Units and they are supported by a Common Service Groups (CSG`s) . oControl and Instrumentationo Pneumatic Productso Information Technologyo Strategic Services Group

PNEUMATIC PRODUCTS GROUP (PNG)

The Pneumatic Business Group is engaged in the business of Pneumatic Actuators using Power Cylinder.

The actuators manufactured at KELTRON can operate outdoors in corrosive, dusty and high temperature atmosphere with a proper selection of materials and accessories.

Pneumatics is a section of technology that deals with the study and application of pressurized gas to effect mechanical motion.

Pneumatic systems are commonly plumbed with compressed air or compressed inert gases.

Pneumatics also has applications in dentistry, construction, mining, and other areas.

GASES USED IN PNEUMATIC SYSTEMS

•It uses compressed air because a sustainable supply can be made by compressing atmospheric air. •A small quantity of oil added at the compressor, to avoid corrosion.• Smaller or stand-alone systems can use other compressed gases which are an asphyxiation hazard, such as nitrogen(oxygen-free nitrogen).

ADVANTAGES OF PNEUMATICS

Simplicity of Design And Control Reliability Storage Safety

PNEUMATIC ACTUATOR It converts energy (typically in the form of compressed air) into

motion. It mainly consists of a piston, a cylinder, and valves or ports. The piston is covered by a diaphragm, or seal keeps the air in the

upper portion of the cylinder, allowing air pressure to force the diaphragm downward, moving the piston underneath, which in turn moves the valve stem, which is linked to the internal parts of the actuator.

It only have one spot for a signal input, top or bottom, depending on action required.

Valves require little pressure to operate . The larger the size of the piston, the larger the output pressure can

be produced.

(Pneumatic Actuator) The pressure is transferred to the valve stem, which is hooked up to either the valve plug, butterfly valve etc.

PNEUMATIC CYLINDERS

Fig:Pneumatic cylinders •These are mechanical devices which use the power of compressed gas to produce a force in a reciprocating linear motion.•It used to store the potential energy of a fluid, in this case compressed air.

Pneumatic Actuators-Classifications1. Piston Actuators

Piston actuators are generally used where the stroke of a diaphragm actuator would be too short or the thrust is too small.

they can be single acting or double acting.

2 Diaphragm Actuators

They have compressed air applied to a flexible membrane called the diaphragm.Depending upon the operation it is again classified into direct and reverse type actuator.

CONCLUSION

o The internship was excellently done for a two week duration from July 23,2016.

o I was able to understood about the departments of the company.

o One of the important product of keltron is their towed array, which is being manufactured for the defense sector.