手機選單
Search
close
Search
Power Utilities

Teleprotection and the Smart Grid

Situation

In order to build a larger, easier to maintain, and more robust electrical network, power companies are increasingly upgrading their old electric grids to become new “smart grids”. These smart grids not only deliver power, but more accurately measure how much power is being delivered and where. This information is communicated back to a central site. With more information, the power company is able to make better, less wasteful decisions.

Solution

In order to make the “smart grid” possible, a communications network is necessary to transmit customer usage information and maintenance information about how the system is operating. Usually this communication is sent over SDH/SONET lines. In certain cases, communication can also be modulated and directly sent over the power lines.

The drawing above shows both methods in use in an installation with the Loop-O9500R SDH/SONET IMAP. A specific teleprotection unit measures the electrical transformer’s data and modulates this over the power lines. Using both methods allows for additional protection should one single element in the system fail. The O9500R also has dual power supplies, support for ring protection and other protection schemes, and optional Y-boxes. All of these characteristics enable the robustness of the communication system.

In addition to high speed transport branches, the O9500R has space for many low speed access cards as well. You can thus do transport and access using one single box to reduce costs and complexity. While shown in this article with the O9500R, teleprotection is also valid for the AM3440 and the O9400R units.

Management

Every network needs to be managed. All Loop devices support SNMP and SSH into a remote terminal. Loop-iNET and LoopView allow you to change settings through a GUI format, and also switch easily between multiple devices. For complex network features such as circuit provisioning, Loop-iNMS fulfills customer needs. Loop products support both inba...

Enterprises & Offices

While not as physically demanding as large factories, offices require strong communication networks as well. Many companies seek better ways to organize their traffic and this is where the IP6510-LN and the IP6610 can help. Our devices can add VLAN tags to direct traffic. They can also aggregate company leased lines for more efficient use. Vid...

Public Transportation

In many ways, a telecommunication network often mirrors a physical transportation network -- thus the old phrase "information superhighway" used to refer to the internet. However, physical transportation networks such as roadways and railways often require their own separate communication network to relay alarm and status information to human ...

TDM over Ethernet

The move from a TDM (time division multiplexing) based network to an Ethernet or IP-based packet switched network is gradual and necessary in order to improve performance and keep costs down. However, this switch is being approached different ways depending on if the customer is a telecom carrier, utility, financial institution, or other indus...