How IP set supply works in Karnataka
Irrigation pump sets are supplied under the LT-4 tariff category. The Government of Karnataka subsidises electricity for IP sets up to 10 HP, so eligible farmers do not pay for the energy their pump uses. The cost is paid to the ESCOM by the state.
Three-phase power for pumps is supplied for a fixed number of hours a day on agricultural feeders, often in rotation between day and night blocks. Under the Niranthara Jyothi programme, village homes are supplied from separate feeders so that they get continuous single-phase power while pump feeders run on schedule.
Making the most of scheduled supply hours
Three-phase hours on agricultural feeders are fixed by the ESCOM and often rotate between a day block and a night block, changing from week to week. The section office and the local lineman know the current schedule, and it is usually passed on through the village and farmer groups.
- Know your feeder and transformer. Ask which 11 kV feeder and which transformer your pump is on, and note the transformer number. Schedules, outages and complaints are all tracked by feeder and transformer, not by your name.
- Store water when power is available. A farm pond, sump or tank filled during the supply block lets you irrigate at the right time of day. Drip and sprinkler systems make every hour of pumping go further.
- Night supply needs a safe path. The IP set connection allows two lighting points in the pump house. Use them to light the starter and the path to it. Carry a torch, wear footwear, and never operate the starter with wet hands or while standing in water.
- Single-phase hours are not for the pump. A three-phase motor run on one or two phases overheats and burns. Wait for the three-phase block instead of trying devices that claim to run the pump on single-phase supply.
If daytime water matters more to you than anything else, ask whether your feeder is being solarised. Our PM-KUSUM solar pump guide explains how feeder-level solar under Component C aims to move pumping hours into the day.
Getting a new IP set connection
New IP set connections go through the subdivision of your ESCOM (BESCOM, MESCOM, CESC, HESCOM or GESCOM) for your village. The rules on who pays for the line and transformer have changed in recent years, and many new connections now need the farmer to meet some or all of the infrastructure cost. Ask at the subdivision what applies before you drill the borewell.
- 1Borewell and pump selection
Pick the pump HP based on yield and depth, not the biggest one available.
- 2Application at the ESCOM subdivision
Land records (RTC / pahani), ID, borewell details, pump HP and a wiring report from a licensed contractor.
- 3Survey and estimate
The ESCOM checks the nearest LT line and transformer. If an extension or new transformer is needed, an estimate is issued.
- 4Line and transformer works
Executed by the ESCOM, or by the farmer through a licensed contractor under ESCOM supervision where allowed.
- 5Starter, capacitor and earthing
Installed and tested before the service connection.
- ✓Service connection
The ESCOM connects the pump and records it under LT-4.
Exact documents and cost-sharing vary. Confirm at your subdivision office.
Government schemes and ESCOM rules are revised from time to time. This article explains how things work in practice. Before you act, confirm the current rule on the Seva Sindhu portal, your ESCOM website, your subdivision office or the helpline 1912.
Meters on IP sets
Historically most IP sets in Karnataka were unmetered and consumption was estimated. To measure agricultural consumption accurately, ESCOMs meter the distribution transformers that feed pump sets, and meters are fitted on individual IP sets in some cases, especially new and regularised ones. A meter on your pump does not by itself mean you pay for energy within the subsidy. It records how much the pump uses, which helps plan feeders and transformers.
Your RR number, name and land records
Every authorised pump set has an RR number with the ESCOM. It is how the ESCOM knows your pump exists, what HP it is sanctioned for, and that the free power subsidy applies to it. Problems with the RR record are behind many refused regularisations and scheme applications.
- Keep the RR number safe. Write it inside the starter box lid and keep a copy of the service card or an old bill with your land papers. You need it for complaints, Aadhaar linking and any change to the connection.
- Change the name when the land changes hands. After a death in the family, a partition or a sale, the RR number should move to the person now cultivating the land. Our name transfer guide lists the papers.
- Link Aadhaar to each RR number. ESCOMs are linking Aadhaar to IP set RR numbers to count pump sets and plan supply. The steps are in our new IP set connection rules, which also cover the 500 m rule and regularising pumps connected without sanction.
- Declare the real HP. If you replace a 5 HP motor with a 7.5 HP one, tell the section office. The sanctioned HP on record should match the motor in the borewell, especially near the 10 HP subsidy limit.
Wiring a pump set properly
- Starter with overload and single-phasing protection. When one phase fails, a motor without protection keeps running and burns.
- Capacitor of the right kVAR. ESCOMs require capacitors on IP sets. They improve voltage and reduce current, which is good for your motor and the transformer.
- Earthing. The starter body and motor frame must be earthed. Wet ground around a borewell makes shock risk high.
- Proper cable size and joints. Long, thin or taped cables to the borewell cause voltage drop and motor heating. Use submersible-rated cable with proper joints.
- No hooking. Direct tapping from lines is illegal, dangerous and one of the main causes of transformer failure and fatal accidents.
Sizing the pump, cable and starter
Most burnt motors we are called to were wrong from the day they were installed. Four choices decide how long a pump lasts.
- Pump HP from the borewell, not the shop. Ask the drilling agency for the yield it measured and the water level, and give these to the pump dealer with the depth at which the pump will hang and how far the water must travel. A pump bigger than the borewell can feed draws the water down, sucks air and runs hot. It can also push you towards or past the 10 HP subsidy limit for no extra water.
- Cable sized for the depth. A submersible pump hanging a few hundred feet down needs a long cable, and the longer the run, the thicker it must be. Use the size from the pump maker's cable chart for your HP and depth, not the cheapest flat cable in the shop. Undersized cable means the motor sees low voltage even when the transformer voltage is fine.
- A starter with real protection. A submersible control panel should have overload protection, a single-phasing preventer and, ideally, dry-run protection that stops the motor when the borewell runs dry. Larger surface motors normally use a star-delta starter to reduce the starting current.
- A capacitor matched to the HP. Ask the dealer for the capacitor rating that goes with your motor and fit it at the starter. The tariff order allows the ESCOM to charge a penalty on IP sets without the prescribed capacitor. Our power factor and capacitor guide explains why it reduces current and heating.
Devices that start the pump the moment three-phase supply returns are popular because power often comes at night. When every pump on a transformer restarts in the same second, the combined starting current can trip the feeder or damage the transformer. If you use a mobile or automatic starter, choose one with an adjustable delay, set it differently from your neighbours, and follow any instruction your section office gives about such devices.
When the transformer burns
A failed transformer (TC) cuts off every pump on it. The ESCOM replaces failed transformers, and many subdivisions keep a stock for quick replacement. Report it through 1912 or the section office with the transformer's location and number. The biggest causes of TC failure are overloading from unauthorised pumps, missing capacitors and poor earthing. When every farmer on a transformer fits capacitors and avoids illegal connections, failures drop sharply.
Low voltage, repeated trips and slow complaints
Low voltage is common at the tail end of long agricultural feeders, and it is what quietly kills motors. The signs are a motor that hums and struggles to start, a starter that trips again and again, or pump house lights that dim badly when the pump starts.
- Check your own side first. Loose starter contacts, a burnt joint in the borewell cable, a failed capacitor, or cable too thin for the depth all look like a supply problem. A licensed electrician with a clamp meter can check the current on all three phases in a few minutes.
- If it is the supply, complain on record. Register on 1912 or at the section office, note the docket number, and give the transformer number and feeder name.
- Complain together. If every farmer on the transformer has the same problem, a joint written complaint gets it treated as a capacity problem, which needs a transformer upgrade or a new one, rather than a one-off fuse call.
- Know the time limits. KERC's standards of performance set limits for fixing voltage complaints and replacing failed transformers, with compensation when they are missed. Our ESCOM delay and compensation guide lists them and shows how to claim.
Do not "solve" low voltage by tapping a phase from another line, bypassing the starter's protection or fitting a bigger fuse wire. Each of these turns a voltage problem into a burnt motor, a failed transformer for the whole village, or a fatal accident.
Solar pumps: are they worth it?
Under central and state schemes such as PM-KUSUM, farmers can get subsidised standalone solar pumps, and some agricultural feeders are being solarised. A solar pump gives daytime water without depending on supply hours and suits farms far from the grid, where a new line would be costly.
| Grid IP set | Solar pump | |
|---|---|---|
| Running hours | Scheduled three-phase hours | Daylight, strongest from 10 am to 3 pm |
| Upfront cost | Connection and infrastructure charges | Higher, partly covered by subsidy |
| Running cost | Subsidised energy | Almost none |
| Best for | Farms near an existing line | Remote farms, daytime irrigation |
Safety on the farm
- Never touch or try to lift a fallen or low-hanging line. Keep people and cattle away and call 1912.
- Do not stack hay, build sheds or plant tall trees under lines.
- Do not use metal pipes or poles near overhead lines when working on borewells.
- Keep the starter box closed and dry, above flood level.
Common mistakes that cost farmers money
A house on the farm needs its own domestic connection; our farmhouse connection guide covers the rules and the cost of bringing a line to the field. Farmers in open fields and pump houses face the highest lightning risk in the state, so also read our lightning protection guide for houses and farms.
Questions
Do farmers pay for electricity for IP sets in Karnataka?
For eligible IP sets up to 10 HP, the state government subsidises the energy, so farmers do not pay for it. Check whether your connection is regularised and within the eligible limit.
Why does my pump motor keep burning?
Common causes are single-phasing without protection, low voltage from long thin cables, a missing or wrong capacitor, and overloaded transformers. A proper starter and capacitor prevent most failures.
Who replaces a burnt transformer?
Your ESCOM replaces failed distribution transformers. Report it at the section office or on 1912 with the transformer location.
Can I get a solar pump instead of a grid connection?
Yes, under schemes such as PM-KUSUM, subject to eligibility and availability in your district. Solar suits farms far from the grid or where daytime irrigation is preferred.
Can I run my farm house from the IP set connection?
No. The IP set tariff allows only two lighting points in the pump house and water for drinking and for animals. A house needs its own domestic connection, or the use can be billed at a commercial or industrial rate.
What should I do about low voltage at my pump set?
First get your starter, capacitor and borewell cable checked, since faults there look like low voltage. If the supply is the problem, register a complaint on 1912 or at the section office with the transformer number, and complain jointly if other farmers on the same transformer are affected.
How do I change the name on my IP set after my father's death?
Apply for a name transfer at your ESCOM section office with the death certificate, the RTC or mutation in your name, the consent of other legal heirs and the RR number. Then link your Aadhaar to the RR number.
Need this done for you?
We handle the electrical work and the ESCOM, KPTCL and CEIG liaisoning anywhere in Karnataka, with BESCOM, MESCOM, CESC, HESCOM and GESCOM. Email basavalalith.electricals@gmail.com or use the enquiry form.
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