A Bond Strands Private Limited

Perungudi, Chennai, Tamil Nadu

A Bond Strands is engaged in the field of design and manufacture of Medium voltage ring main units (RMU)-12kV and 24kV. Ring Main units with Tee-Off fuse switch units, are the compact distribution panels designed to cover the switching duties which is a vital part of any distribution network. The compactness of design make these RMUs highly suitable for compact stations such as in rural supply systems. The panel is also used as part of distribution panels in ordinary distribution stations of industry or electricity boards. The metal enclosure of the panel ensures IP4X protection class as a standard to prevent accidental contact with live parts. However, for special applications, better protection class also can be supplied, such as for Outdoor applications, installations in mines etc. .

Salient Features of RMU

Sheet Metal enclosed & custom built
Three pole breaking
Air as insulation medium
Quick make, quick break manual operation
Possibility of easy renewal of fuse
Mechanical interlock
Suitable for indoor or outdoor installation
Easy to extend at site
Trip-all phases for fuse tripping

ORDERING INFORMATION-RMU:

1. Type of RMU -No. of switch /fuse feeders
2. Indoor/Outdoor application
3. Provision of earth switch
4. Finish (unless specified our standard shade is light gray)
5. Optional extras like fuses, auxiliary contacts , shunt release etc.
6. Mimic Diagram(optional)
7. Special requirements like metering/protection equipment.
8 Whether remote operation (Motor operation) is required.

A. Bond Strands now can offer the above version with the many Govt. utilities approving application of load break switches of 33kV rating in place of same rated Circuit breakers to Industrial /huge civil layouts.

This new design will continue retaining its proven and highly reliable tubular arc quenching device.

We manufacture HT OnOff Load Break Switches (Isolators) up to 36kV in collaboration with EMO , Yugoslavia who are pioneers in this field. Load break switches are extensively used in power plants and distribution networks. These have been tested for impulse and short time rating at Central Power Research Institute, Bangalore, the recognized independent testing authority in India.

We are one of the reputed OEM in the country and abroad, for our type of 3.3 kV to 33 kV Isolators and 12 kV to 24 kV Load, Break Switches. These equipments are manufactured under technical collaboration from EMO, Yugoslavia, (Original design being from Sprecher & Schuh Switzerland), who are pioneers in this field. Our Load break switches are extensively used in power plants and distribution networks and are regarded as highly reliable. The salient feature of ABS Load Break Switch is its ability to permit load connections even under a short circuit condition without danger to the operating personnel. It complies with IEC, VDE, & IS standards. A high speed(snap action) make and break ensures a fast switching action and the very special design of arc chutes having excellent extinguishing properties for both high and low currents, suitability of mounting in horizontal or vertical plane etc. prove the versatility of these switches.