The questions buyers actually ask at the counter.
These are the electrical selection and sizing questions we are asked most often in Bargarh, written out in full. Which breaker for which job, which starter for which load, whether a VFD is worth it on a huller line, how power factor penalties work on an Odisha bill, what cable a long yard run needs, and what a rice mill BOQ should contain.
Written by Ashish Kumar Agrawal, proprietor, from twenty years of supplying mills, crushers and plants across western Odisha. No catalogue copy — where a number depends on your load or your tariff, we say so.
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01
Switchgear
MCB, MCCB or ACB: which breaker belongs where
The three LT breakers compared by current rating, breaking capacity, adjustability and cost — and the rule of thumb we use at the counter to pick one.
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02
Motors
DOL, star-delta or soft starter: sizing a starter for mill and crusher loads
Where each starter type stops making sense, what starting current each draws, and why a huller and a crusher jaw of the same horsepower need different answers.
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03
Drives
When a VFD pays for itself in a rice mill
The three mill loads where a variable frequency drive returns its cost, the ones where it never will, and how to work out the payback on your own tariff.
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04
Panels
Power factor penalties in Odisha and what an APFC panel actually saves
How the penalty is calculated on an Odisha HT and LT bill, how much kVAr a plant needs, and why fixed capacitors alone stop working once a mill automates.
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05
Cables
Armoured, flexible or FR: choosing cable for a plant
Aluminium against copper, when armouring is worth the money, how to size for volt drop over a long yard run, and the derating buyers forget in a sponge iron plant.
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06
Safety
Plant earthing: electrodes, strip sizes and what the inspector checks
How many electrodes a plant needs, GI against copper, where chemical earthing earns its price in Bargarh soil, and the readings an electrical inspector asks to see.
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07
Turnkey
What goes into a rice mill electrical BOQ
A line-by-line list of what a mill electrification actually needs, section by section, and the six items that get left off almost every BOQ we are sent.
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08
Motors
Choosing motors for a stone crusher
Why a crusher burns standard motors, what crusher duty really means, and how to specify frame, insulation class and protection for dust and shock loading.
Ask the question and we will answer it.
If your question is not here, ring +91 80182 87141 or send it on WhatsApp. We answer sizing and selection questions whether or not you buy from us — and if it comes up more than twice, it ends up on this page.
| Written by | Ashish Kumar Agrawal, Proprietor |
|---|---|
| Firm | Ashish Trading Co, Bargarh |
| Trading since | 30 December 2004 |
| Answers published | 8 |
About these answers.
Who writes these answers?
Ashish Kumar Agrawal, proprietor of Ashish Trading Co, Bargarh. They are written from what we are actually asked at the counter and from what we see come back for replacement, not from a manufacturer catalogue.
Do I have to buy from you to get advice?
No. Ring +91 80182 87141 with a sizing or selection question and we will answer it whether or not you order from us. Most of these pages started as questions somebody asked on the phone.
Are the ratings and figures on these pages Indian standard?
Yes. Ratings, cable sizes and earthing practice follow Indian standards and common Odisha practice. Where a figure depends on your tariff, load or soil, we say so rather than printing one number as though it were universal.
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