TPC-7

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The TPC-7 is a specialized electrical fuse that is used in high-voltage applications. It is designed to provide a high degree of protection for equipment in more extreme applications than traditional fuses are capable of providing. It is also used to protect expensive equipment and other assets from potential harm caused by power surges.

TPC-7 Application Field

The TPC-7 is designed for use in electrical power distribution systems that operate over a range of voltages, typically in ranges between 600 Volts and 15,000 Volts. It is particularly suitable for protecting power supplies that are subject to frequent on/off cycling, due to its self-resetting capabilities. It is a convenient replacement for traditional fuses in custom-designed applications that may require protection from both overloads and short circuits. Some of the typical TPC-7 applications include: dedicated UPS systems, electric motor systems, high-voltage power lines, and other applications where rapid response is required to protect expensive equipment.

TPC-7 Working Principle

The TPC-7 is composed of two units: an arc-extinguishing cell and a lockout mechanism. The arc-extinguishing cell is made up of copper and heat-resistant beryllium-copper alloy contacts placed in a serpentine arrangement. When an overcurrent flows through the TPC-7, the contacts in the arc-extinguishing cell heat up and melt, thus extinguishing any arcs that may have formed. Once the arc is extinguished, the lockout mechanism is engaged, which prevents a further current from flowing until the fuse is manually reset. The lockout mechanism also ensures a reset current limitation, which is normally 1.5 times the nominal rating.

In addition to providing overload and short circuit protection, the TPC-7 also provides many other advantages. It is designed to be installed and maintained safely without the need for special tools, and has built-in protection against rain, dust, and extreme temperatures. It is also significantly more reliable than traditional fuses, due to its automatic resetting capability and the fact that it does not need to be replaced after every incident. The TPC-7 also provides a cost-effective solution for owners of expensive equipment, since it is less likely to suffer from wear and tear and its self-resetting capabilities make it more reliable than traditional fuses.

Overall, the TPC-7 is an excellent choice for applications involving extremely high voltages and currents. Its specialized design allows for superior protection against overloads and short circuits, and its self-resetting capabilities make it more reliable than traditional fuses. It is also easy to maintain and provides cost savings over the long-term, making it a great choice for protecting expensive equipment.

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