OC Electric Recent News

Recent OC Electric work, projects, latest electrical trends, technology, and more.

Recent blog posts
Electrical Bucket Truck Services - Eastern Shore

OC Electric is offering bucket truck services to Delarmava.  We have aquired a F550 with a 42' Altech Bucket that is 4 wheel drive and with a 4 ton warn winch on the front custom bumper.  We are ready and prepared to tackle all your too far to reach electrical concerns.  Call us today for a timely quote.

 

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Motor Control Center Installations - SPI Pharma Inc.

OC Electric was contracted to perform MCC additions for equipment upgrades at SPI Pharma Inc in Lewes, DE.  Several additional buckets were added where the new motor controls and circuit protectors were installed.  The electrical work was completed on time and within budget.  Contact OC Electric LCC for more information or for an invitation to bid your next electrical project.

Electrical Motor Control Center Installations

A motor control center (MCC) is an assembly of one or more enclosed sections having a common power bus and principally containing motor control units.  Motor control centers are in modern practice a factory assembly of several motor starters.  A motor control center can include variable frequency drives, programmable controllers, metering, and may also be the electrical service entrance for a building.  Motor control centers are usually used for three-phase alternating current motors from 208 V to 600 V.

A motor control center consists of one or more vertical metal cabinet sections with power bus and provision for plug-in mounting of individual motor controllers.  Very large controllers may be bolted in place but smaller controllers can be unplugged from the cabinet for testing or maintenance.  Each motor controller contains a contactor or a solid-state motor controller; overload relays to protect the motor, fuses or a circuit breaker to provide short-circuit protection, and a disconnecting switch to isolate the motor circuit.  Three-phase power enters each controller through separable connectors.  The motor is wired to terminals in the controller.  Motor control centers provide wire ways for field control and power cables.

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Custom Electrical Control Boxes, Cabinets, and Panels

OC Electric offers custom-built electrical panels, electronic control boxes, electrical panel boxes, electrical sub panels, and electrical service panels with UL approved switchboards.  Contact us for a custom design consultation and quote.

Custom Electrical Control Boxes, Cabinets, and Panels

Ocean City Electrical builds custom control cabinets to meet specific customer specifications for commercial, industrial, agricultural, pharmaceutical, and many other related applications.  Due to the extensive panel and control wiring required in highly efficient production environments, many businesses have come to rely on us for their panel wiring and control system needs.

We offer complete wiring of main control cabinets, operator stations, and a host of “on-board” wiring and connections.  This includes wiring of PLC’s for optimal HMI performance, as well as, familiarity with touch screen, and servo drive technologies.  Our customers appreciate the precision and organization of our custom wired panels and boxes, including the attention to detail and appearance of our labeling and bundling.

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PID Control Tuning - Ocean City Brewing Company

OC Electric maintains all the electrical related equipment for OC Brewing Company in Ocean City, MD.  From a bad light bulb to complex PID control tuning for the brew process we provide complete electrical services to the popular restaurant and brewing company.  Contact OC Electric LLC for more information on a wide range of electrical services we can provide your home or business. 

PID Controllers

The PID controller algorithm involves three separate constant parameters, and is accordingly sometimes called three-term control: the proportional, the integral and derivative values.  Simply put, these values can be interpreted in terms of time:  depending on the present error, on the accumulation of past errors, and a prediction of future errors, based on the current rate of change.  The weighted sum of these three actions is used to adjust the process via a control element such as the position of a control valve, a damper, or the power supplied to a heating element.

Dramatic Process Control and Stability

In the absence of knowledge of the underlying process, a PID controller has historically been considered to be the most useful controller.  By tuning the three parameters in the PID controller algorithm, the controller can provide control action designed for specific process requirements.  The response of the controller can be described in terms of the responsiveness of the controller to an error, the degree to which the controller overshoots the set-point, and the degree of system oscillation.  The use of a PID algorithm for control dramatically improves control of the system and system stability.

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Soft Starter or VFD - Which to Choose?

Processing plants are filled with motors that drive pumps, fans, augers, compressors, conveyors, mills, mixers, and other equipment.  Many of these motors need or could benefit from a reduced-voltage soft start or a variable-frequency drive (VFD).  Both soft starters and VFDs substantially reduce the electrical and mechanical shock caused by across-the-line starting, and both help reduce electrical demand by reducing a motor's start-up current.

Soft starters and VFDs can reduce field building or inrush currents and machine starting torque by as much as 30% to 75% when compared to an across-the-line starter.

In applications such as pumps and compressors, which can require many starts per hour to maintain critical process flows or pressures, these reduced starting currents result in significantly less motor heating and longer motor life.  A softer or less rapid increase in motor torque at motor starting can also greatly extend the life of belt-driven and mechanically geared equipment.

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Grain Mill Upgrades to Soft Start Technology

Ocean City Electric was commissioned by a local Eastern Shore grain mill to upgrade a number of magnetic starters with soft start technology to prolong the life of the motors and related downstream equipment.  A solid-state soft start controller controls the starting torque and current of an AC motor electronically.  Contact OC Electric LLC for more information on the benefits of using soft start controller technology. 

Soft Starters can be used in almost any fixed speed application such as:

• Commercial—HVAC fans and pumps

• General industrial—fans, pumps, conveyors, material handling, and processing equipment

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