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6 August 2012

Manually racking breakers between isolated, test and connected positions is a potentially dangerous operation for switchroom personnel. This procedure usually represents a point in time where large electrical connections are being made while on-site personnel are in front of the breaker. There are a number of products in the market to protect personnel from this dangerous situation, but the best protection is in the form of isolation of the operator from the danger.

Personal Protective Equipment (PPE) such as arc flash suits can be used to protect workers; however these are cumbersome and uncomfortable to work in. This often means that necessary site maintenance is avoided. With this in mind, NHP has developed a ‘remote racking system’ for use with the Terasaki brand ‘AR’ Air Circuit Breaker (ACB). TemPower Rack is much quicker and easier to use, allowing regular maintenance to be carried out safely and without hassle.

The TemPower Rack completely isolates the operator from the front of the switchboard during the mechanical circuit breaker racking operation. It is controlled by a pendant that is connected to the motor racking unit via a 10 metre cable. This means that the operator can be outside of the switchroom, away from any potential source of injury. The TemPower Rack is completely battery powered, removing the need for external power leads across the ground during operation which are a potential safety hazard.

The TemPower Rack also incorporates a specially designed lifting trolley for ACB bodies, which can weigh up to 180kg. As ACBs are protective devices it is important that they are placed on a level surface and maneuvered carefully so as to prevent damage to them.

Unlike other devices on the market, TemPower Rack does not require any modification to the ACB in order to operate. This allows the TemPower Rack to be used easily on existing installations, and allows the operator to move quickly from breaker to breaker.

The TemPower Rack received a great reception at the Mining Electrical Safety Conference in Brisbane in July and we are pleased to announce that the TemPower Rack is now available to order.

Comments

  • Kelvin Hines, 11 October 2012

    I have developed a range of remote Racking and switching products, Would NHP be interested in working to developing new remote Racking and switching products

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