Product

Auto Tensioning Device, Tension Wheels, Pulley Regulating Equipments

Auto Tensioning Device is one of the critical component of the Overhead contact lines of the Railways.It serves both as a termination as well as provides a mechanism for the automatic tensioning of the contact lines.

Tensioning is needed on the contact lines due to the variation in the lengths of the contact lines (contact lines are primarily made from copper based alloys which are prone to expansion and contractions)due to variation in atmospheric temperatures.

Absence of tensioning would create sag or tightening of the overhead lines creating pantograph entanglement or snapping of the OHE lines.

The Winch Type Regulating Equipment

The Winch Type Regulating Equipment

This is one of the earlier designs.This device has a mechanical advantage of 5:1 and creates a tension of 2000kgf using dead weights of 400kgs.
Three Pulley Regulating Equipment

Three Pulley Regulating Equipment

As the name indicates this device entails the usage of three pulleys arranged in such a way so as to provide a mechanical advantage of 3:1.This device creates a pull of 2000 kgf using dead weights of 667 kgs. Covering the length and breadth of the country our company is proud to have over 100,000 satisfactory installations of our equipments.
Five Pulley Regulating Equipment.

Five Pulley Regulating Equipment.

As the name indicates this device entails the usage of three pulleys arranged in such a way so as to provide a mechanical advantage of 3:1.This device creates a pull of 2000 kgf using dead weights of 667 kgs. Covering the length and breadth of the country our company is proud to have over 100,000 satisfactory installations of our equipments.

SECTION INSULATOR ASSEMBLY

Section Insulator Assembly or Section switches are used on the overhead lines to electrically isolate and seperate sections for maintenance reasons or at overlaps.They can also be used in conjunction to isiolate sections in seperate phases being fed by different feeder substations .They are also used extensively on changeovers.We specialize in the manufacture of the following variants

Section Insulator Assembly for DC-AC lines (Mumbai Suburban Section)
The suburban overhead lines of Mumbai have recently undergone change from the erstwhile DC supplies to a composite DC AC supply system. We have closely worked with the local bodies and succesfully developed the modifed Section Switches which were initally pressed into service at the Chatrapati Terminus at VT and then in the suburban sections too.
Section Insulator Assembly for 150 sq.mm contact lines used in Metro Railways
We have worked alongside organizations such IRCON International Ltd and ABB Ltd to succesfully offer them Section Switches for the Delhi Metro Rail Corporation characterized by their unique150 sq.mm contact lines.

Light Weight Section Insulator Assembly

Indian railways like other railways world over are developing their infrastructure to allow for high speed express and goods trains to run at higher speeds.To this extent RDSO has initiated the process for change over to the new designs.We are in the process of developing this light weight insulator assembly.

Stainless Steel Wire Ropes

We represent USHA MARTIN LTD as their reselling agents for Stainless Steel Wire ropes manufactured as per RDSO Specification No.TI/SPC/OHE/WR/1060[6/06] with A and C slip 1 and 2 of latest. Started in 1961 in Ranchi, Jharkhand as a wire rope manufacturing company,today the Usha Martin Group is a Rs. 3000 crore conglomerate with a global presence. The group has set new standards in the manufacture of wire rods, bright bars, steel wires, speciality wires, wire ropes, strand, conveyor cord, wire drawing and cable machinery. With continuous growth in both the domestic and international markets, Usha Martin, the Group’s flagship company has emerged as India’s largest and the world’s Second largest steel wire rope manufacturer.

Understanding Section Insulators