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Three-Phase Multi-Functional Electric Energy Meter LY-DTS

The LY-DTS energy meter is a state-of-the-art, high-precision device designed for industrial power systems. It integrates advanced digital sampling technology and SMT processes, ensuring accurate and reliable energy measurement. With compliance to industry standards like GB/T 17215 and DL/T 645-2007, it is ideal for monitoring and managing power usage in demanding environments.

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Multi-rate three-phase power meter Three-phase energy meter Digital electric energy meter Smart grid energy management meter RS485 energy meter for industrial use LY-DTS energy meter

Description

Advantages

Specifications

Uses

Guide

Product Overview

The LY-DTS is a high-precision three-phase multi-functional electric energy meter engineered for demanding industrial power systems. It integrates advanced digital sampling technology and SMT processes to deliver accurate, reliable energy measurement, fully complying with industry standards including DL/T614-2007 and GB/T 17215. This meter excels in real-time monitoring of active energy and reactive energy, supports multi-rate functionality, and enables seamless remote management via built-in RS485 communication and infrared interfaces. It is ideal for scenarios requiring precise power tracking, such as grid gateways, factories, and large commercial facilities.

Three-Phase Multi-Functional Electric Energy Meter LY-DTS

Product Advantages

High-Accuracy Measurement: Boasts 0.2S class accuracy for active energy and 2 class for reactive energy, paired with a high-speed AC voltage/current module to ensure precise data even in fluctuating power environments.

Versatile Multi-Rate Functionality: Supports four-quadrant measurement of reactive energy and records maximum demand with timestamps, adapting to time-of-use (TOU) billing models.

Dual Communication Interfaces: Equipped with RS485 port (1200-9600bps) and infrared interface (1200bps), compatible with DL/T645-2007 protocol for easy integration into centralized energy management systems.

Industrial-Grade Durability: Features strong electromagnetic compatibility (EMC) and wide temperature adaptability (-25℃~+60℃), resisting harsh industrial interference and climate changes.

Flexible Power Supply: Operates on any two phases of a three-phase four-wire system, reducing installation constraints in complex power networks.

Long-Term Data Retention: Uses non-volatile memory and a 3.6V clock battery, ensuring ≥10 years of data preservation even during prolonged power outages.

Technical Specifications

Key Specs Summary

The LY-DTS covers critical parameters for industrial energy measurement, including variable reference voltages, rated currents, and pulse constants. Its low power consumption (≤1.5W per phase voltage circuit) and compact design (290mm×170mm×85mm) enhance usability in switchgear and distribution cabinets.

Detailed Specification Table

Category	Reference Voltage	Rated Current	Active Pulse Constant	Reactive Pulse Constant	Accuracy Class
Three-Phase Three-Wire	3×100V	3×1.5(6)A	20000 imp/kWh	20000 imp/kvarh	Active: 0.2S; Reactive: 2
Three-Phase Four-Wire	3×57.7/100V	3×1.5(6)A	20000 imp/kWh	20000 imp/kvarh	Active: 0.2S; Reactive: 2
Three-Phase Four-Wire	3×220/380V	3×1.5(6)A	6400 imp/kWh	6400 imp/kvarh	Active: 0.2S; Reactive: 2
Three-Phase Four-Wire	3×220/380V	3×1.5(60)A	400 imp/kWh	400 imp/kvarh	Active: 0.2S; Reactive: 2
Three-Phase Four-Wire	3×220/380V	3×10(80)A	300 imp/kWh	300 imp/kvarh	Active: 0.2S; Reactive: 2

Note: Pulse constants vary by region; refer to the nameplate for actual values.

Normal Working Voltage	0.9Un-1.1Un
Extended Working Voltage	0.8Un-1.15Un
Power Consumption of Each Phase Voltage Circuit	≤1.5W & 6VA
Power Consumption of Each Phase Current Circuit (Ib<10A)	＜0.2VA
Power Consumption of Each Phase Current Circuit (Ib≥10A)	＜0.4VA
Clock Battery Voltage	3.6Vdc
Replaceable Battery Voltage	6Vdc

Electrical Parameters

Rate - based Working Parameters

Clock Accuracy (Daily Error)	≤0.5s
Clock Accuracy Variation with Temperature (-25℃~ +60℃)	0.1s/(d.℃)
Clock Accuracy Daily Timing Error (-25℃~ +60℃)	＜1s/d
Battery Capacity	＞1200mAh
Data Retention Time after Power Failure	≥10years

Applications

The LY-DTS is tailored for high-precision energy management in:

Industrial Factories: Monitoring power consumption of heavy machinery and production lines.

Smart Grids: Supporting TOU billing and grid load balancing for utility companies.

Substations: Measuring energy flow in 110kV+ high-voltage systems for internal settlement.

Large Commercial Buildings: Tracking HVAC and lighting energy use for cost optimization.

Data Centers: Ensuring stable power measurement for critical IT infrastructure.

Selection Guide

Confirm Wiring Type: Choose three-phase three-wire for high-voltage systems (e.g., 100V) or three-phase four-wire for low-voltage applications (e.g., 220/380V).

Match Current Range: Select CT-connected (0.3A, 1.5A) for high-current loads or direct-connected (10A, 80A) for low-current scenarios.

Check Pulse Constants: Verify local regulatory requirements for imp/kWh to ensure compliance.

Evaluate Communication Needs: Opt for the optional second RS485 port if integrating with multiple monitoring systems.

Assess Environment: Ensure operating temperature (-25℃~+60℃) matches the installation site (e.g., outdoor vs. indoor).

Operation Guide

Installation: Follow the three-phase four-wire CT wiring diagram (included) to connect voltage (L/N) and current (CT) lines; avoid reverse polarity.

Parameter Setting: Use a PC (via RS485) or infrared remote to configure time zones, tariff rates, and alarm thresholds.

Data Reading: View real-time data via the LCD display (auto-scrolling or manual query) or remotely via Modbus-compatible software.

Maintenance: Annually check the 3.6V clock battery and clean the meter surface; avoid water or dust ingress.