Low Voltage
The Switchboard Design Requirements
The following rules of design have to be implement in the aim to facilitate the assembly and especially the maintenance of the installation. The switchboard must be designed the way to have a clearly visible separation between the 3 following… Read more
Feb 01, 2011 | By Edvard Csanyi
Low Voltage
Form of separation 1 – Requirements
In general, the price of an Assembly will increase with increased levels of separation and/or types of construction. Choosing the arrangement with the most internal barriers will not always lead to the most appropriate solution. Where specific requirements are not… Read more
Jan 27, 2011 | By Edvard Csanyi
Low Voltage
Maintenance Of Molded Case Circuit Breakers (MCCB)
The maintenance of circuit breakers deserves special consideration because of their importance for routine switching and for protection of other equipment. Electric transmission system breakups and equipment destruction can occur if a circuit breaker fails to operate because of a… Read more
Jan 01, 2011 | By Edvard Csanyi
Low Voltage
Maintenance Of Low Voltage Circuit Breakers
The deterioration of low voltage circuit breaker is normal and this process begins as soon as the circuit breaker is installed. If deterioration is not checked, it can cause failures and malfunctions. The purpose of an electrical preventive maintenance and… Read more
Dec 31, 2010 | By Edvard Csanyi
Low Voltage
Forms of Separation (2) – Fundamentals
In accordance with the Standard, separation of the various elements of an Assembly: busbars, functional units, terminals, can be claimed providing one or more of the following criteria are met: 1. “Protection against contact with live parts belonging to adjacent… Read more
Dec 13, 2010 | By Edvard Csanyi
Energy and Power
Time-Current Curves explained in details
Time-current curves are used to show how fast a breaker will trip at any magnitude of current. The following illustration shows how a time-current curve works. The figures along the bottom (horizontal axis) represent current in amperes. The figures along… Read more
Dec 07, 2010 | By Edvard Csanyi
Low Voltage
Forms of Separation (1) – Introduction
Standard BS EN 60439 Part 1, describes a system for classifying the various forms of separation to be provided principally for: protection against contact with live parts belonging to the adjacent functional units. limitation of the probability of initiating arc… Read more
Dec 04, 2010 | By Edvard Csanyi
