Morris Power Construction - MPC
P.O. Box 23
630 Race Ave
Boswell, OK 74727

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Welcome to the Website of Morris Power Construction.
We provide construction for various types of commercial power projects, with primary focus on renewable energy with wind turbine technology. In additon to wind farm construction projects, we do smaller wind turbine construction for residental, farms, educational centers, small businesses as well as both large and small corporations, and office park developments.

Bridgeport - 345KV Duct Bank

Bridgeport, Connecticut - Due to the increasing demand in the Southwest Connecticut (SWCT) area, Connecticut Light & Power and the United Illuminating Company (UI) ("the Companies") expanded the 345-kilovolt transmission system into SWCT. The expansion took the form of a 345-kV "loop". The first portion of this loop ran from the Plum Tree Substation in Bethel to Norwalk Substation in Norwalk. The second portion of the loop extended the 345-kV lines from the Middletown Area to Norwalk Substation.

This "loop" serves to correct the reliability criteria violations of the transmission system and minimized the costs associated with congestion, and helped to better serve the customers.

The route from Middletown to Norwalk interconnected to two proposed substations and one proposed switching station along the way; Beseck Switching Station in Wallingford, East Devon Substation in Milford, and Singer Substation in Bridgeport. The project also connected to the existing Norwalk Substation in Norwalk and Scovill Rock Switching Station in Middletown. Both underground and overhead line options were considered and routes were evaluated. In the Middletown to Norwalk section of the "loop", several sections entailed removing one of the 115-kV lines from service and replacing it with a 345-kV line, as well as upgrading several existing substations and 115-kV transmission lines. The Bridgeport 345-kV Underground Transmission System Duct Bank and Substation was absolutely essential to complete on schedule.

There is much more to putting transmission lines underground than just burying them. Overhead and underground lines make use of very different technologies.

Underground lines typically cost more, but can more easily be routed through highly developed urban areas, ideally within tunnels beneath city streets. But a disadvantage to underground installations is that their construction requirements, unlike an overhead line, necessitate access to every foot of the route, increasing construction impacts on roadways, traffic, wetlands, and wildlife habitats.

Electric power system engineers recognize that when it comes to working with higher transmission voltages, underground lines have important differences from overhead lines. For instance, because the heat created by resistive losses moves more slowly away from underground cables, underground transmission lines commonly require more or bigger conductors to deliver the same amount of power. Because of the thick insulation around underground cables, installed cable lengths are shorter and many more splices (made in large underground vaults) are necessary. While a failure may happen less frequently on an underground line, when it does its location and repair typically take a couple of weeks to complete, during which time the remaining transmission system must operate reliably without the cable. Also, the substations at the ends of an underground cable will often need to have large shunt reactors installed to compensate for the high charging currents associated with these cables.

This underground power construction project for duct bank was a real challenge and crews worked around the clock in shifts from start to finish. The Bridgeport 345-kV Underground Transmission System Duct Bank and Substation was the most challenging part of this project. Traffic congestion was a constant challenge and just avoiding an accident was constantly on your mind. Nevertheless, we got it done and the power transmission duct bank completed on schedule.

Renewable energy from wind turbine construction will ultimately play a part in helping provide the power for the Bridgeport 345-kV Underground Transmission System and Substation. Renewable energy has become our first priority at Morris Power Construction with projects for wind turbine construction. As these new backbones of high voltage transmission lines and duct banks become in place, wind turbine construction will increase as the source of renewable energy to power these grids. Renewable energy, provided by wind turbine construction, will increase at a steady growth to meet the demand.

345-kV Duct Bank

Bridgeport Duct Bank

Complex Duct Bank wind energy

ducts roadside wind turbine power

manhole wind turbine power

manhole vault wind turbine construction

road way 1 wind turbine construction

road way 2 wind turbine construction

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