Quality Inspection for Prepaid Electricity Meters for Tenants - Smart Three Phase Meter LY-SM 350Postpaid – linyang

Key Specifications

Electrical Parameter

● Connection Type: 3P4W

● Nominal Voltage: 3×220/380V, 3×230/400V, 3×240/415V (±30%)

● Nominal Current: 5A, 10A, 20A

● Frequency: 50/60 Hz ± 1%

● Dimension: 285 x 173.5 x 93.5 LWH (mm)

Communication
● Local Communication: Optical Port, RS485, M-BUS
● Remote Communication: PLC/RF/GPRS/2G/3G/4G/NB-IoT

Key Functions

● Tariffs: 4

● Anti-Tampering: Magnetic Field, Bypass, Meter/Terminal Cover open, Reverse Energy, Missing Phase or/and Neutral

● Billing Periods: 12 months

● Event Log

● Load Control: Time & Power Thresholds

● Load Profile

● Measuring Values: kWh, kvarh

● Instantaneous Parameters: kW, kvar, V, I, kva, F, PF

● Multi-Utility: Gas/Water/Heat

Key Features

● Bi-directional measurement

● 4-quadrant measurement

● Neutral measurement

● Neutral line missing measurement

● Internal Relay

● Dual-disconnect relay

● Neutral line connected relay

● Internal or replaceable battery as optional

● Power quality management

● Demand monitoring

● Remote upgrade

● Real Time Clock

● TOU

● Plug-and-play communication module with PLC/RF/GPRS/2G/3G/4G/NB-IoT

● Anti-Tampering: Magnetic Field, Bypass, Meter/Terminal Cover open, Reverse Energy, Missing Phase or/and Neutral

AMI

REMOTE UPGRADING

NEUTRAL MEASUREMENT

PQ MONITORING

LOAD CONTROL

MODULAR COMMUNICATION

INTEROPERABILITY

ANTI-TAMPER

Protocol & Standards

● IEC 62052-11

● IEC 62053-21/23

● EN 50470-1/3

● IEC 62056

Certificates

● IEC

● DLMS

● IDIS

● MID

● PRIME

● SABS

● SGS

● G3-PLC