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PEWAUKEE, Wis.----American Transmission Co., a proven leader in the planning, construction and operation of transmission infrastructure, has identified various new high-voltage transmission line projects ...
ABOUT 33,000 homes and businesses were without power for more than two hours after a man suffered a high-voltage electric shock at a power station.  ...
Capturing mechanical vibration energy from environment, Harvestor-III(TM) line of power modules provide perpetual electric power for microcircuit applications. They can provide continuous voltage output ...
BALTIMORE (AP) -- Two energy companies have filed an application with Maryland regulators to run part of a high-voltage, multistate power line across southern Frederick County.American Electric Power Co., ...
Discussion about transmission line planning and green power is popular in Washington these days. A vast network of new high-voltage transmission lines is needed, we're told, to bring renewable energy to ...
Allegheny Energy Inc. and American Electric Power said the timeline for their $1.8 billion, 290-mile high-voltage transmission line joint venture has been extended by a year.  ...
Dramatic changes are coming to the networks that bring energy from plants to homes, from the high-voltage lines that carry it over great distances to the house meters that measure how much consumers use, ...
Avista Corp. and three other utilities are exploring the possibility of building a high-voltage transmission line that would stretch roughly 1,000 miles from southern British Columbia to the San Francisco ...
MINNEAPOLIS----Upper Midwest utilities have identified improvements needed in the region's high-voltage electricity transmission system to ensure they can deliver the renewable energy necessary to meet ...
10. Earth Fault-Loop Impedance Part 3
(References/Tutorials)
... used. For motor loads particularly where the motor starts loaded, then Type D is being used. Where: Lmax = maximum route length UO = nominal phase voltage (230V for a 400V system) ρ = resistivity ...
11. Earth Fault-Loop Impedance Part 2
(References/Tutorials)
... there will be no means of protective device will provide protection against touch voltage. At the location of the fault, there is a possibility that the full voltage is present in the equipment enclosure ...
12. Earth Fault-Loop Impedance Part 1
(References/Tutorials)
... is zero. The maximum disconnection time for a 230 V supply voltage shall not exceed the following: 0.4 s for final subcircuits that supply socket-outlets having rated currents not exceed ing 63A; ...
13. Time-Current Curves with Excel IV
(References/Tutorials)
... better the coordination curve, here are the parameters. Please note that values are referred to the primary which is 11kV. Utility Supply (0.2 time multiplier) Voltage : 11kV SC Capacity : 75MVA Protection: ...
... primary and secondary disconnecting devices. The interrupting devices, buses, voltage transformers, and control power transformers, are completely enclosed by grounded metal barriers, which have no intentional ...
The Common specifications for high-voltage switchgear and controlgear standards ( IEC 60694:2002 ) tables 1 and 2 provide the rated insulation levels of switchgears and controlgears. In these tables, the ...
16. Power Factor Correction - Tutorial
(References/Tutorials)
... this better, let us provide a real world example. Plant A Monthly average Monthly energy consumption : 125 000 kwhs Power Factor : 0.75 Lagging Utilization Voltage : 400V, 3 phase What is the ...
17. Low Voltage Switchgear And Controlgear
(References/Specifications)
Specification For Low Voltage Switchgear And Controlgear 1. SCOPE This specification defines the requirements for the design, manufacture and works testing of indoor assemblies of low-voltage, metal-enclosed ...
18. Liquid Immersed Power Transformers
(References/Specifications)
... Power transformers. IEC 60137 Bushings for alternating voltages above 1000 V. IEC 60214 On-load tap-changers. IEC 60296 Specification for unused mineral insulating oils for transformers and switchgear. ...
19. High Voltage Induction Motors
(References/Specifications)
Specification For High Voltage Induction Motors SCOPE This document defines the requirements for design, manufacture and testing of high voltage squirrel cage induction motors for PROJECT-NAME Project. ...
20. High Voltage Switchgear
(References/Specifications)
Specification for igh-Voltage Metal-Clad / Metal-Enclosed Switchgear  SCOPE This specification defines the requirements for the design, manufacture and works testing of indoor assemblies of high-voltage ...
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