BMK — Bulk Metering Kiosks
The metering point when there is no switchroom to put it in. Everything a metering cubicle needs, plus a monsoon.
Manufacturing · In short
A Bulk Metering Kiosk (BMK) is a self-contained, weatherproof outdoor enclosure housing the current transformers, voltage transformers and energy meter at a bulk supply or interface point — used where metering must sit outdoors at the boundary rather than inside a switchroom. Enersys Engineers manufactures BMKs to the distribution licensee’s approved metering scheme, with sealing arrangements, anti-tamper construction, test terminal blocks and provision for remote meter reading.
Where a BMK is used instead of an indoor cubicle
- Bulk supply points where the metering boundary is outdoors at the property line
- Pole-mounted or plinth-mounted interface metering on HT and LT feeders
- Group or colony bulk metering ahead of internal distribution
- Solar and captive generator interface metering where no control room exists at the boundary
- Ring main and feeder pillar locations requiring metering at the node
- Sites where the licensee requires the meter to be accessible for reading without entering the premises
Construction
Metering and communication
- ABT-compliant special energy meter where the connection requires it, otherwise the licensee’s approved meter class
- Test terminal block permitting meter testing without breaking the CT secondary circuit
- Check-metering provision where the scheme specifies it
- Remote meter reading by GPRS/4G modem or optical port
- Communication link to the load despatch centre where the connection point requires telemetry
- Surge protection on the metering and communication circuits
Getting the scheme approved first
As with any interface metering, the CT and PT ratios, the meter accuracy class, the sealing points and the physical arrangement are specified by the distribution licensee — not chosen by the manufacturer.
Enersys handles the DISCOM approval that confirms the scheme and manufactures the kiosk afterwards. Building it first is how a kiosk gets built twice.
Frequently asked
What is the difference between a BMK and an HT metering cubicle?
The electrical content is largely the same — CTs, PTs, meter, test terminal block and sealing. The difference is the enclosure: a BMK is built for permanent outdoor exposure, with weatherproofing, a higher IP rating, an outdoor-grade finish and anti-tamper construction, and it is mounted on a plinth, wall or pole rather than standing in a switchroom.
Can a BMK be read remotely?
Yes. Remote meter reading over GPRS or 4G is standard provision, and a communication link to the load despatch centre can be included where the connection point requires telemetry.
What IP rating do you build to?
IP55 as a minimum for outdoor kiosks, increased where the site is dust-laden or particularly exposed. The rating is specified against the actual location rather than to a catalogue default.
Do you install and commission the kiosk as well as manufacture it?
Yes — including the plinth or pole mounting, earthing, cable termination, testing and joint sealing with the licensee.
What usually goes with this
These are the adjacent scopes clients most often need alongside it.
HT & LT metering cubicles
The instrument the bill is settled on. Build it before the licensee approves the scheme and you will build it twice.
Read more →ApprovalsDISCOM approval & connection
The distribution licensee decides your supply voltage, your metering arrangement and your connection date. Those are engineering questions before they are administrative ones.
Read more →ManufacturingElectrical & automation panel manufacturing
Built by the team that drew the protection scheme and ran the fault study — so the specified rating is the installed rating.
Read more →ApprovalsSLDC, RLDC & NLDC registration and scheduling
Registration is a one-off. Scheduling and deviation settlement are for the life of the asset — and they carry real money.
Read more →Need bmk kiosks? Tell us the scope.
Send the voltage, the capacity and the site. You will hear back from an engineer within one working day.