Manufacturer of meter cover open detecting - Smart Three Phase Meter LY-SM300 – linyang

Key Specifications

Electrical Parameter

● Connection Type: 3P4W

● Nominal Voltage: 3×220/380V, 3×230/400V, 3×240/415V (-20% to +15%)

● Nominal Current: 5A, 10A

● Frequency: 50/60 Hz ± 1%

● Dimension: 270 x 170 x 81.5 LWH (mm)

Communication

● Local Communication: Optical Port, RS485, M-BUS

● Remote Communication: GPRS/3G/4G/PLC/RF/NB-IoT (pluggable)

Key Functions

● Tariffs: 4

● Anti-Tampering: Magnetic Field, Meter/Terminal Cover open, Reverse Energy

● Billing Periods: 12 months

● Event Log

● Load Control: Tamper, Time Scheduled, Power Thresholds, Over/Under Voltage

● Load Profile

● Measuring Values: kWh, kvah

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

● Multi-Utility: Gas/Water/Heat

● Power Quality: Over/Under current, Over/Under voltage, Unbalance Current

Key Features

● Internal relay

● Dual-disconnect replay as optional

● Neutral line missing measurement

● Neutral measurement

● Power quality measurement

● Bi-directional measurement

● 4-quadrant measurement

● Internal or replaceable battery as optional

● Remote Upgrade

● Real Time Clock

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

TOU

AMI

LOAD CONTROL

NEUTRAL MEASUREMENT

ANTI-TAMPER

MODULAR COMMUNICATION

MULTI-UTILITY METERING

REMOTE UPGRADE

Protocol & Standards

● IEC 62052-11

● IEC 62053-21/23

● IEC 62056 etc

Certificates

● IEC

● DLMS

● MID

● G3-PLC

● CNAS