Modern circuit protection is provided by digital overcurrent relays which are operated by current, not heat so abnormal heating caused by loose connection bolts, ventilation failure or worn contacts is usually left undetected by conventional circuit breakers. This can lead to pre-mature failure of switchgear and also constitutes a potential fire hazard. Continuous condition monitoring of the temperature of switchgear can substantially minimise down time of the installation and reduce the risk of fire. Why the Protection of Generators Needs Special Consideration Generators differ from other electrical power sources in their ability to withstand electrical overloads and fault currents. These differences should be respected when selecting and setting circuit breakers which protect generators.
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It takes less than 10 seconds to secure a handle or motor to the MCCB — a great time saving compared to alternative products. Locking Pegs 2. Open the catalog to page 8 6.
An automatic changeover system can be assembled very easily by a switchboard builder or end-user. Our goal is to develop products which not only meet, but exceed recognised standards. We use our knowledge of related applications to improve circuit breaker designs. For instance, when developing the Direct Opening Action, we applied ideas from a machinery safety standard to the design of the TemBreak 2 switching mechanism. This proactive development policy confirms our reputation as Innovators in Protection Technology.
Machine Safety Opening force is transmitted directly from the toggle switch The indicators are fully covered if a breaker trips, and black is the only visible colour. This is a unique safety feature. You can identify faulty circuits at a glance. The toggle position always matches the position of the main contacts. Touch Safety The risk of touching live parts has been minimised by design. This is 22, more operations than recommended by IEC , the international standard for circuit breakers.
If a system must be upgraded in future, we have made the following provisions for recycling: 1 The modular design of TemBreak 2 allows component parts and accessories to be easily disassembled and separately disposed of
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