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Three-Phase Power Meter Reference Design

THREE-PHASE-POWER-METER

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The three-phase power meter reference design is used for measurement and registration of active and reactive energy in three-phase networks for direct connection. It is precertified according to European EN50470- 1, EN50470-3, class B and C, as well as to IEC 62053-21 and IEC 62052-11 international standards for electronic meters of active energy classes 2 and 1.

Block Diagram

Three Phase Meter

Three Phase Power Meter Block Diagram
Get diagram PDF

Supported Devices

Wireless Connectivity

Multiprotocol MCUs

  • KW41Z: Kinetis® KW41Z-2.4 GHz Dual Mode: Bluetooth® Low Energy and 802.15.4 Wireless Radio Microcontroller (MCU) based on Arm® Cortex®-M0+ Core

Processors and Microcontrollers

KM Series Arm Cortex-M0+

  • KM3x: 50–75 MHz Precision Metrology MCUs with Segment LCDs Based on Arm® Cortex®-M0+

Features

Connectors

  • Internal connector supporting Arduino® shield (Wi-Fi, Bluetooth) expansion boards

Interfaces

  • 4 x 40 segment LCD, including charge pump (values shown on LCD: V, A, W, Var, VA, kWh, kVarh, cos F, Hz, time, date
  • Isolated (4 kV) RS-232 port for monitoring, parameterization and firmware upgrade
  • Integrated wireless 15W transmitter supports fast charging for Samsung® and Apple® devices
  • Digital control buck-boost converter
  • One control IC controls buck-boost converter, charge, Qualcomm algorithm, PD communication and wireless power management

Design Features

  • Low-power design with operation in low-power modes and the use of built-in RTC (Li-battery backup)
  • 100 A current range, 85 to 264 V, 50/60 Hz voltage range

EMC

  • EMC proven design (EN61000-4-2, EN610004-4)

Accuracy

  • Accuracy class: C (active energy EN50470-3) and three or two percent (reactive energy EN62053-23)

Communications Infrastructure

Buy Options

FRDM-KW41Z-Image

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  • FRDM-KW41Z
    Active

  • Part Description: Freedom Development Boards for Kinetis KW21Z, KW31Z and KW41Z MCUs. 2 boards per order..

  • Kit contains:

    • 2 FRDM-KW41Z Freedom Development Boards
    • Quick Reference Card
    • 2 USB cables
  • $166.75 USD
  • For a quantity of 1
    • Availability: In Stock
    • Inventory: 1
    • Shipping: Normally ships 1-2 business days
ADD TO CART
Order from distributors
TWR-KM34Z75M-Image

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  • TWR-KM34Z75M
    Active

  • Tower System Development Board for Kinetis KM14, KM33 and KM34 (50 MHz) MCUs.

  • Kit contains:

    • TWR-KM34Z75M Tower System module
    • Quick Start Guide
    • USB Cable
  • For a quantity of 1
Order from distributors
N true 0 PSPTHREE-PHASE-POWER-METERen 1 Application Note Application Note t789 1 en_US en_US en Application Note Application Note 1 1 FRDM-KW41Z 0 English AN12231, application note, MCU, 32-bit MCU, Kinetis W, KW41, FRDM-KW41, Coexistence, BLE, IEEE 802.15.4, Zigbee, Wireless, Connectivity framework, MWS 1534214922152703557602 PSP 763.3 KB None None documents None 1534214922152703557602 /docs/en/application-note/AN12231.pdf 763262 /docs/en/application-note/AN12231.pdf AN12231 documents N N 2018-08-13 KW41Z IEEE 802.15.4 and BLE Coexistence Performance /docs/en/application-note/AN12231.pdf /docs/en/application-note/AN12231.pdf Application Note N 645036621402383989 2022-12-07 pdf N en Aug 13, 2018 645036621402383989 Application Note Y N KW41Z IEEE 802.15.4 and BLE Coexistence Performance false 0 THREE-PHASE-POWER-METER downloads en true 0 Y PSP Application Note 1 /docs/en/application-note/AN12231.pdf 2018-08-13 1534214922152703557602 PSP 1 Aug 13, 2018 Application Note AN12231, application note, MCU, 32-bit MCU, Kinetis W, KW41, FRDM-KW41, Coexistence, BLE, IEEE 802.15.4, Zigbee, Wireless, Connectivity framework, MWS None /docs/en/application-note/AN12231.pdf English documents 763262 None 645036621402383989 2022-12-07 N /docs/en/application-note/AN12231.pdf KW41Z IEEE 802.15.4 and BLE Coexistence Performance /docs/en/application-note/AN12231.pdf documents 645036621402383989 Application Note N en None Y pdf 0 N N KW41Z IEEE 802.15.4 and BLE Coexistence Performance FRDM-KW41Z 763.3 KB AN12231 N 1534214922152703557602 true Y Designs

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