Temporary power connection do's and don'ts

Do’s :

Ensure taking a work permit from the site in charge and conduct a Tool Box Talk.

All electrical jobs to be conducted by a certified electrician.

Ensure all the equipment is flameproof.

Equipment that operates in three-phase power should have double neutral earthing.

The use of an Earth-leakage circuit breaker is a must for all the equipment.

The current rating for all equipment should not be greater than 30Amps.

Ensure use of proper rating Direct On Line Motor Starter in individual machines.

Ensure use of proper armored cables for the main power connection.

If there are cable lying on the road crossings or pathways should be covered and concealed to protect them from physical damage.

Cables without any joints should be used at all times.

Cables should be laid above the ground to the maximum possible extend.

Electrical connections should be kept clean, dry, and tight at all times.

Ensure all power supplies are switched off from the feeder pillar immediately if the equipment is not in use on a daily basis.

Maintenance person should be informed after completing the job if there is no requirement for the temporary power.

Don’ts :

Don’t use power supply above 24 V inside confined spaces.

Do not lay the unarmored cable on the ground

Do not twist and carry connections between two cables.

Do not keep a temporary feeder pillar near water.

Do not sublet any temporary connection to another contractor.

Do not increase the load without informing the electrical maintenance department for a temporary power supply.

Do not allow an unauthorized electrical person on the job location.

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Technology:-

Stage Wise Mechanical Filtration:-

The first stage is the largest micron rating, i.e. 50 micron or 25 microns. Second stage could be a medium-sized micron rating, maybe 10 or 16 or 20 microns and the final one, polishing filter stage, could be 6, 3 or 1 micron. The decision of micron rating depends on the kind of oil, level of dirt present in the oil and the application where this equipment is used.

Low Vacuum Dehydration:-

This technique is used for removal of moisture content from the oil, which is present in three forms:

Dissolved

Emulsified

Free form

The technology evolves around the fact that water boiling point is 100℃, when the vapour pressure above the water surface is atmospheric pressure. But when we reduce the vapour pressure to a vacuum condition say 750 torr, it's evident that the boiling point of water reduces from 100℃ to 60℃.

Electrostatic Fluid Cleaning

This calls for electrostatically charged electrodes inside a water bath.

It is a known fact that all foreign particles carry some charge. While we create positive and negative electrodes on the oil bath, the foreign particles which are negatively charged would be attracted towards the positive charged electrode and vice-versa. Thereby, after some interval of oil passage the particles would be attracted towards the respective oppositely charged electrode and a separation of particles happen.

Nitrogen Blanketing

This technique talks about the creation of an inert gas blanket in the header space of oil tanks.It has been seen that the header space of oil tanks, especially in the coastal areas, is full of humid air. This humidity is the biggest concern for oil oxidation and degradation. Hence, dry inert gas blanketing technology enables us to create a dry environment in the header space of these tanks. Having an inert gas ensures absence of oxygen, which would be the key element for oxidation and oil degradation.This technique has enabled a number of governing systems, lube oil systems in the coastal regions and they help them to reduce the problems of oil oxidation and degradation.

Tan Reduction By Ion Exchange

This is a technology which is used for reduction of TAN (Total Acid Number) value in the oil. TAN value is an indication of total acidity formed in the oil, which leads to an understanding of oil degradation.If we analyze the oil chemistry, there would be an understanding that oil degrades and forms carbonic acids and carboxylic acid groups. These lead to a condition where the oil is no more lubricating and it loses its basic properties. Hence, it is very important to maintain the TAN value within manufacturer subscribed limits.

We at Minimac study your maintenance needs and provide the best solution. We believe in Discern, Design & Deliver.

Call +91 7030901266 for Mechanical Maintenance & Oil Check.