What is an electricity meter?

An electricity meter records electrical energy, normally in kilowatt-hours. The utility’s main meter is the official billing point for a property. A downstream submeter measures one unit, tenant, circuit, machine, department, or common-area load so its share can be monitored and allocated internally.

Installation and Bruntab billing

A qualified electrician installs the correct meter after reviewing phase configuration, voltage, maximum current, conductor size, panel space, protection, and communication requirements. Bruntab readers collect the meter registers by an approved data interface and send them to EEMS. The platform provides trends, reports, alarms, and separate rial-based sub-bills using the configured electricity tariff and progressive tiers.

Electrical installation, isolation, protection, current-transformer orientation, earthing, and commissioning must follow the meter manual and applicable electrical rules. Metering equipment should never be installed or rewired by unqualified persons.

Applications

• Apartment, office, and shop submetering
• Commercial centers and mixed-use buildings
• Common-area electricity and EV-charging allocation
• Industrial production lines and departments
• HVAC plants, pumps, chillers, and major equipment
• Temporary users, contractors, and leased areas
• Power-quality and demand-management projects when supported by the selected meter

Benefits

• Fair allocation based on measured kWh
• Automatic remote readings without manual transcription
• Hourly and daily load profiles
• Peak-demand and abnormal-use visibility
• High-consumption user identification
• Evidence for efficiency projects and maintenance
• Integration with EEMS reports and billing

Bruntab electricity-meter types

Single-phase miniature meter with data output

Designed for compact distribution boards and single-phase branch circuits. Model selection must match voltage, direct-current rating, accuracy, pulse or communication output, and panel mounting.

Single-phase wiring and reader connection

The incoming and outgoing phase and neutral conductors are connected only as specified by the manufacturer. The data output is wired separately to the reader with correct polarity and cable type. The circuit must be isolated before work and verified during commissioning.

Three-phase meter with data output

Three-phase meters serve larger units, commercial users, common loads, and industrial equipment. Available measurements may include active energy, reactive energy, demand, voltage, current, power factor, and other power-quality parameters.

Direct and current-transformer connections

A direct-connected meter carries load current through its terminals and is selected for the approved current range. Higher-current systems use current transformers (CTs); correct CT ratio, class, polarity, and secondary safety are essential for accurate readings.

Three-phase wiring and reader connection

Phase sequence, voltage references, CT polarity, meter configuration, and the Modbus/RS-485 or pulse interface are checked against the approved drawing. Commissioning compares meter values with an independent reference and verifies data at EEMS.

Typical project workflow

1. Survey panels, loads, tariffs, and billing requirements.
2. Prepare the single-line and communications design.
3. Select meters, CTs, protection, enclosures, and readers.
4. Install during an approved electrical shutdown.
5. Test phase sequence, ratios, direction, communications, and recorded values.
6. Configure EEMS users, reports, alarms, and billing rules.

Frequently asked questions

Does a submeter replace the utility meter?

No. It is used for internal measurement and allocation unless the utility formally approves it as a billing meter.

Can a separate bill be issued for each tenant?

Yes. EEMS can allocate the main cost according to measured energy and the agreed tariff rules.

Can meters be read remotely?

Yes. Compatible pulse or digital outputs connect to Bruntab readers for automatic collection.

How is the correct meter selected?

Selection considers single/three phase, direct or CT connection, current, voltage, accuracy, required parameters, protocol, enclosure, tariff, and installation conditions.