Solutions for intelligent upgrading and transformation of distribution network

Detailed plan description

For power supply companies, industrial parks, and large enterprises, we provide intelligent upgrading and transformation services for traditional distribution networks. By replacing smart energy meters, deploying distribution automation terminals, and building a unified monitoring master station, remote meter reading, automatic fault location and isolation, real-time load monitoring, and refined line loss analysis can be achieved to comprehensively improve the operating efficiency and power supply reliability of the distribution network.

Adapted to Indonesia

Solve the problems of "slow power outage locating, long recovery time, invisible meters, and high line loss" for distribution network companies, park power grids, and local power projects. The solution covers AMI smart meters, DTU/FTU, RMU, fault indicators, communication modules, SCADA/master station interfaces and operation and maintenance data dashboards.

Professional specifications and standards based

The medium voltage distribution network is commonly 20kV, and the RMU/ring main unit is selected according to IEC 62271; the smart meter refers to IEC 62052/62053, and the communication options are DLMS/COSEM, RS485, NB-IoT/4G; the distribution network automation interface is recommended to support IEC 60870-5-104, IEC 61850 or project-specified protocols.

Product specification comparison table

Original experience and test data

Scarce experience: Intelligent projects are prone to failure due to protocol incompatibility and on-site communication blind spots.

Pitfalls and pain points that I have stepped on

• Traditional manual meter reading has low efficiency and large errors, line losses cannot be accurately calculated, and leakage and leakage are serious;
• Line faults are manually checked section by section, resulting in long power outages and high user complaint rate;
• The load cannot be monitored in real time, transformers and switch cabinets are burned due to overload, and faults occur frequently;
• The data of each system is isolated and cannot be managed in a unified manner, and operation and maintenance decisions lack data support.

Core parameters

The electric energy measurement accuracy is 0.5S level, the fault location accuracy is ≤100 meters, the power restoration time in non-fault areas after a fault is shortened by 70%, the communication coverage is 100%, and the line loss rate is reduced by 2 to 3 percentage points after the transformation.

Our special contribution

• Full replacement of smart AMI meters, remote automatic meter reading, zero manual error, and meter reading efficiency increased by 100%;
• Deploy power distribution automation terminals to automatically identify and isolate faults, and quickly restore power to non-faulty areas;
• Unified master station monitoring system, real-time monitoring of full-link load, early warning of overload, reducing equipment burnout;
• The data center connects various systems, supports line loss analysis and dispatching decisions, and reduces operation and maintenance costs by 30%.

Project income

• Economic benefits: The line loss rate is reduced by 2 to 3 percentage points, and the annual power loss per hundred kilometers of distribution lines is reduced by more than one million kilowatt-hours; after equipment overload warning, transformers and switch cabinet burnout failures are reduced by 70%, and equipment replacement and maintenance costs are saved by 30% annually.
• Management benefits: Remote automatic meter reading reduces meter reading labor costs by 100%; automatic fault location and isolation improves fault handling efficiency by 70% and user complaint rate drops significantly; full-link data visualization enables operation and maintenance decisions to be based on evidence, and operation and maintenance efficiency increases by 30%.
• Social benefits: The reliability of power supply has been significantly improved, and the duration of power outages for users has been greatly shortened, meeting the requirements for high-quality power supply services.