Standard solution: commercial metering cabinet 0.4/10 kV (AMR metering unit)

Published: 18.07.2026 · Author: engineering department, LK Energia LLC

A ready standard solution for a commercial electricity metering cabinet of the ШУ series for 0.4 and 10 kV networks — a metering unit with a meter, current transformers and a test terminal box, ready for connection to an automated meter reading (AMR/АСКОЕ) system. The solution is compiled from real projects of 2021–2026 (ШУ-3, ШУ-5, ШУР-6 versions in IP54/IP21 enclosures). The DWG set is free on request via the form.

What a commercial metering unit is

The commercial metering cabinet is the point where billing metering of consumed (or delivered) electricity takes place. It houses the meter, measuring current transformers, a test terminal box for meter verification without shutting down the facility, and terminal rows. For metering on the 0.4 kV side the meter is connected directly or via current transformers; for 10 kV metering — via the current and voltage transformers of the cubicle. The cabinet is prepared for data transmission to an AMR system.

Technical parameters

• ШУ series of metering cabinets: ШУ-3, ШУ-5, ШУР-6 versions (from real projects)
• Enclosure protection degree IP54 (outdoor installation) or IP21 (indoor)
• Direct-connected or transformer-operated electricity meter
• Measuring current transformers (CTs) for metering
• Test terminal box (switch) for meter verification and replacement without de-energizing the facility (with short-circuiting of the CT secondary circuits)
• 0.4 kV metering circuits; for 10 kV metering — via the CTs/VTs of the switchgear cubicle
• AMR-ready (meter interface / pulse outputs wired out)
• Drawing language — Ukrainian; CT ratios and meter type are defined by the site-specific design

DWG set on request

We will send the full set (schematic circuit diagram of the metering unit, cabinet layout, terminal rows and equipment list) in DWG format free of charge by email. Individual sheets can be sent as PDF previews on request.

We manufacture the equipment at our own facility in Odesa; see also the equipment catalog.

FAQ

What is the difference between the IP54 and IP21 versions?

IP54 is a dust- and moisture-protected enclosure for outdoor or damp environments; IP21 is for dry indoor rooms. The version is chosen according to the installation location of the metering cabinet.

When is metering direct and when via current transformers?

Direct metering is used at low load currents; at higher currents the meter is connected via measuring current transformers with an appropriate ratio. The limit is set by the design load of the facility.

Is the solution suitable for commercial metering at 10 kV?

Yes — the metering unit is built on the measuring current and voltage transformers of the 10 kV cubicle; the cabinet is ready for integration into an AMR system.

The full DWG set is free on request via the form below. We usually send it by email within one business day and advise design engineers on the equipment configuration: +38 067 104 94 91.

The drawings are provided as a reference standard solution. Site-specific adaptation, load and setting calculations, and compliance with the applicable codes (ПУЕ, ДСТУ, ДБН) are the responsibility of the design engineer. LK Energia accepts no liability for use of the solution without adaptation to the conditions of a specific site.