Wednesday, 9 November 2016
Wednesday, 12 October 2016
Monday, 12 September 2016
Monday, 5 September 2016
What is Dynamic Line Rating?
Traditional operational limits of a transmission line are established through “static” transmission line rating methodologies. The common practice for transmission line rating is to select very conservative values for the environmental operating conditions of the line. The resulting static line rating is similarly very conservative.

Today, seasonally adjusted ratings (SAR) and ambient adjusted ratings (AAR) push upward a line’s traditional static ratings by simply acknowledging that more realistic environmental conditions exist. Dynamic Line Rating, or DLR, is a transmission line’s actual real-time or forecast power carrying capacity. It is based on the conductor’s operating temperature using real-time line behavior data and weather conditions. Dynamic Line Rating (DLR) is the natural and logical extension of the seasonal and ambient adjusted ratings trend. Why assume a line has only four ratings a year based on seasons when real-time data and line behavior modeling can provide reliable daily or even hourly ratings? This is especially significant as a line’s DLR is typically 10 – 25% higher than its static rating. electricenergyonline

Numerous studies have shown this additional capacity provides opportunities in economic dispatch, trading, operations, and congestion mitigation. Application of DLR is also a powerful tool for improving contingency planning, cost effectively addressing lines with slow load growth, and deferring or eliminating the need for line upgrades.
Yet with all these economic advantages, DLR is sparsely deployed. The reasons are two-fold. First generation DLR systems presented numerous issues to early adopters, discouraging wider deployment. Secondly, demand drivers were either weak in the deregulating transmission environment, or were poorly understood.
For more details click here: Dynamic Line Rating
Sunday, 3 July 2016
Thursday, 30 June 2016
SMARTLINE (Dynamic Line Rating) DLR Software
To
address and eliminate these concerns, the self-powered sensors used in
Lindsey’s SMARLTINE next generation (Dynamic
Line Rating)DLR system are available with an Iridium
satellite radio communication option. This provides a direct data path from the
sensor to the satellite, and from there to the SMARTLINE (DynamicLine Rating)DLR software via
secure cloud-based communications.
The
advantages of this approach?
·
The sensors are able to communicate the
monitored data from any transmission span, regardless of location.
·
No additional communication
infrastructure or equipment is required.
·
They are secure. The radio is built-in
to the sensor and transmits only non-operational measured data (conductor
temperature, line power, clearance-to-ground, and conductor vibration) directly
to the DLR software.
·
The self-powered sensors eliminate the
need for remote power sources.
To
talk about how Lindsey’s next generation DLR system and satellite
communications can address your transmission line rating concerns, contact
Lindsey….
Lindsey ManufacturingCo. (LMC) is located in Azusa, California, Near Los Angeles
Zip Code: 91702
P.O. Box 877 Tel. 1(626) 9693471
760 N. Georgia Ave Fax. 1(626) 969 3177
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