Category: Control Panels

What are the top safety tips for electrical engineers?

Seven steps that save lives// While we usually focus our weekly technical releases on practical assistance for today’s engineers, nothing is more important than understanding how to work safely. As an example of electrical safety procedures, we will discuss the safe working procedures used by HV field technicians – the ‘Seven steps that save lives‘. …

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What is the principle of power factor correction and protection of capacitors?

Power factor correction principle// Loads such as induction motors draw significant reactive power from the supply system, and a poor overall power factor may result. The flow of reactive power increases the voltage-drops through series reactances such as transformers and reactors, it uses up some of the current carrying capacity of power system plant and …

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What is the difference between switchgear and switchboard?

The application of switchgear and switchboards// One important element of good power system design is the proper selection of the distribution equipment. The choice of using either switchgear or switchboard must be based on many different criteria and the design of the power system requires thought to be given to each one. Following are insights …

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What lockout operations need to be performed when working in power substations?

The lockout operations or safety procedures are precisely and clearly defined operations, the aim of which is always to ensure that situations are, and remain, safe. This will enable people to work on all or part of an installation (or a device), with return to operation (removal of lockout) only being possible by the intentional, …

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Which is best, an aluminium or copper busbar trunking system?

These two materials (aluminium and copper) are both physically and economically viable for use as conductors in power busbar trunking systems (BTS). Some manufacturers of busbar trunking systems offer a product with copper busbars and others offer a product with aluminium conductors. Increasingly almost all major manufacturers are offering both products, leaving the choice to …

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What are the guidelines for PLC installation, start up and maintenance?

PLC start up and maintenance// The design of PLCs – programmable controllers includes a number of rugged features that allow PLCs to be installed in almost any industrial environment. Although programmable controllers are tough machines, a little foresight during their installation will ensure proper system operation. This handbook explores PLC installation, explaining the specifications for proper PLC …

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What is an Arc Flash?

Do you know what an arc flash is? If not, keep reading, it’s important. What is an Arc Flash? An Arc Flash is an electrical explosion resulting from a low impedance connection to ground or another voltage phase in an electrical system. High temperatures cause rapid heating of surrounding air and extreme pressures, resulting in …

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Where can I find a control panel to meet my exact specifications?

Here at Quantum Controls we provided a bespoke, personal and quality service backed up by our engineers, sales and service departments along with fully qualified panel wiremen to ensure the highest standards and level of expertise in design, manufacture and installation of equipment. This is backed up by 24/7 call out service to ensure that …

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I have a 90kW motor with soft starter 90kW installed. How much kVA Generator do I require for the motor?

Limited information means you need to make a few assumptions on power factor and efficiency. Assume PF of 0.75 and efficiency of 90 % kVA = (kW / Power factor) / efficiency so kVA = (90 / 0.75) / 0.9 = 133.33 kVA So 133.33 kVA minimum but better to add a little extra to …

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Who Polices the New BS EN 61439-2:2009 Electrical Control Panel Standard?

The new standard assumes the manufacturer will ensure his equipment complies with the standard. Policing the application of the CE mark is the responsibility of the Dept of Business Enterprise & Regulatory Reform (BERR) (previously DTI) Quantum Controls are one of less than 1% of Control Panel Manufacturers in the UK to invest the time …

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