Category: FAQs

Do you lose efficiency when rewinding electric motors?

Quantum Controls saved a utilities company over £15k a year by presenting the facts to them when one of their 160kW motors failed The utility company supplied services to all the Manufacturing Facilities at Wilton Chemical facility in Middleborough.  They suffered a failure on a motor running one of their chilled water pumps in the …

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What are the benefits for and against the use of Low Voltage Variable Speed Drives versus Medium Voltage Variable Speed Drives?

Answer: Very good question. It is actually dependant on application details but be wary of some manufacturers who will lead you towards what ever product range they have to sell rather than the best fit for your application. Download the below file for best explanation of the pros and cons of both LV and MV …

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What cable should I use when installing Variable Speed Drives?

Four-core cables Many installers prefer using four-core cable, as this is the traditional way for many installations and also because it provides an element of convenience, with the earth lead already included within the cable sheath. However, when earthing a drive system, two aspects need to be considered – personal protection and EMC. The protective …

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How can I stop Bearing Current Failures?

How to deal with persistent bearing currents On rare occasions, operators in the process industry may note that their low voltage motors experience a current flowing through the motor bearings, especially when they are used with a variable speed drive (VSD). Left unchecked, these bearing currents will inevitably result in premature failure. Two new approaches can eliminate …

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Do Motors and Drives bought this year still benefit from the governments enhanced capital allowance scheme?

Have you heard of the government backed scheme which lets you replace your old inefficient drives & motors with new environmentally friendly models and be able to claim 100% back in capital allowance? The ACA rate has been decreasing steadily to now, this year 1.4.2020, it will be abolished. If equipment is ordered, bought and …

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Why is it important to carry out a thermal audit?

Carrying out a complete, reliable heat balance allows you to consider which management solutions best suit your needs. First of all, it is essential to identify the most delicate devices or functions: the ones that should be given protection priority. Delicate devices can be the cause of shut-downs or malfunctions of the installation. Important to …

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What does an ABB Drive Serial Number tell me about the Drive?

Quantum Controls supply thousands of ABB Drives into the UK market every year, all manufactured at ABB’s Drive Factory in Helsinki Finland, the world’s largest Drive Manufacturing Facility, this is designated by the number one at the start of the serial number. This factory serves all the European Markets including the UK. All drives are …

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How do I connect the power cables for an ABB ACS800 Drive?

1/2. If shielded cable is used (not required but recommended), use a separate PE cable (1) or a cable with a grounding conductor (2) if the conductivity of the input cable shield is < 50 % of the conductivity of the phase conductor. Ground the other end of the input cable shield or PE conductor …

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Motor Windings: What are the differences?

Motor windings can take many shapes or forms. However 3-phase distributed windings are the most commonly used in AC motors for industrial applications, which will be the focus of this article. The discussion which follows is equally applicable to the use of this type of winding in induction motors or in permanent magnet synchronous motors. …

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What is Industry 4.0? Explained by an engineer for an engineer.

Until the scientific revolution most human cultures did not believe in progress. They thought the golden age was in the past, and that the world was stagnant, if not deteriorating.  Many faiths believed that someday a messiah would appear, as happened when Kevin Keegan joined Newcastle United. But the notion that progress could and would …

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