Eaton Introduces New Feature for its Capitole 40 Low Voltage Switchgear
- Published: Tuesday, 26 November 2013 08:22
The new Capitole 40 MTP is equipped with a Mechanical Test Position (MTP) that allows operators to safely insert or remove the withdrawable units whilst the system is live. All of the functional components are kept safely behind closed doors protecting personnel from the potential hazards of an arc flash.
The Capitole 40 series is Eaton's switchgear and controlgear solution for up to 6,300 A and 690 V. It comes with a full range of fixed, plug-in and withdrawable functional units comprised of feeders, bus couplers, motor starters and distribution feeders. The system has been designed to meet the requirements of the highest international safety standards, as well as the increasing demand for equipment requiring little or no maintenance with guaranteed operational reliability. Thus, the switchgear is ideally suited for the most challenging applications including chemical and process industries, oil and gas exploration, power stations and data centres.
As part of the new MTP design, each withdrawable Capitole 40 unit has a lever that can be operated from the front panel and controls three positions: disconnected, test and connected. When inserting the unit, which is only possible in the disconnected position, it remains partly withdrawn from the distribution bars, and the main disconnect, as well as the main and control circuits, are disconnected. This setting provides a safe maintenance environment. Once the compartment door has been closed, the operator can move the lever to the test position and only the auxiliary contacts are closed. This allows users to safely test the control loop from the Distributed Control System (DCS) to the functional unit and back to the DCS. When selecting the connected position, there are two options: connected/off and connected/on. In connected/off mode, the main disconnect remains open, but the main and control circuits are connected and the operator has the option to padlock the device in this position for added safety. In the ‘connected/on’ position, all contacts are connected. There are no tools required for the entire installation and removal of the units.
The Capitole 40 MTP has been tested to meet criteria one through seven of IEC/TR 61641, and offers a protection rating of IP31 in the ‘disconnected’ and ‘test’ positions and IP41 in the ‘connected’ position. The new switchgear feature has also surpassed the requirements of the IEC 61439 test, having achieved 500 inserts and withdrawals without any maintenance when the test only requires 200.
For those with existing Capitole 40 systems, Eaton offers an easy retrofit upgrade to Capitole 40 MTP. A video demonstrating the MTP functionality is now available here: www.eaton.eu/Capitole40