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Archive: Category «Transmission and Distribution»

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Environmental Stresses On External Insulation

The external insulation (transmission line or substation) is exposed to electrical, mechanical, and environmental stresses. The applied voltage of an operating power system produces electrical stresses. The weather and the… Read more

Jan 07, 2013 | Edvard

Environmental Stresses On External Insulation

Enhance Grid Reliability With Hybrid HVDC Breaker

Introduction to HHVDC How does Hybrid HVDC Breaker work? (VIDEO) Hybrid HVDC Breaker Construction Proactive control Prototype Design Of The Hybrid HVDC Breaker Comparison/Summary The advance of voltage source converter-based… Read more

Dec 15, 2012 | Edvard

The Hybrid HVDC Breaker by ABB

Power Line Carrier Communication (PLCC)

Use of PLCC in modern electrical power system is mainly for telemetry and telecontrol. Tele means remote. Telemetry refers to science of measurement from remote location. Introduction Major goal/Application of… Read more

Dec 14, 2012 | Asif Eqbal

Power Line Carrier Communication (PLCC)

Arrangements of LV Utility Distribution Networks (2)

Continued from the previous part: Arrangements of LV Utility Distribution Networks (1) In the past, an underground cable service or the wall-mounted insulated conductors from an overhead line service, invariably terminated… Read more

Dec 01, 2012 | Edvard

Arrangements of LV Utility Distribution Networks

Transformers Are Never Silent

Yes, we all know that transformers are never silent. This is actually quite impossible, but in an environmentally aware, highly regulated world, the issue is not the level of noise,… Read more

Oct 29, 2012 | Edvard

A three-phase oil transformer 225 MVA, 275 kV

Overcurrent protection of transformer (NEC 450.3)

The overcurrent protection required for transformers is consider for Protection of Transformer only. Such overcurrent protection will not necessarily protect the primary or secondary conductors or equipment connected on the… Read more

Oct 08, 2012 | jiguparmar

Overcurrent protection of transformer (NEC 450.3)
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