Aleen Mohammed

Aleen brings a unique skillset in that he has six years of experience as a utility consultant and five years of experience as an engineer at a public utility. In these roles, he created physical design drawings, protection & control drawings, and SCADA drawings for numerous substations and successfully managed projects as a lead engineer to meet scope, schedule, and budget requirements. Aleen also has experience in conducting system studies for industrial facilities to determine available short-circuit current to specify equipment, arc-flash hazard study using IEEE 1584 to specify PPE, and load flow studies to specify capacitors. Besides work, he has contributed to the IEEE 1584 standard and PJM’s (Designated Entity) substation standards.

Cable and Conduit Installation in Substations – Best Practices

Substation Physical Design / By / / 4 minutes of reading

Substations contain equipment that are controlled by relays. If the relay is installed at a remote location such as a control house then you need to lay down wires from the relay to the location where the equipment is in the yard. The process of laying wires can be as simple as directly burying them in the ground to pulling them through a conduit. Sometimes cable trenches are used. Site conditions, project funding, and the type of substation (bulk power vs. distribution) dictates which method is the most suitable.

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Direct Buried Conduit - PEguru - Power Systems Engineering

Why We Need Electrical Power Substations

Electrical Concepts / By / / 2 minutes of reading

We build substations for the following reasons: Practical Considerations for Power Substations To satisfy load growth When new communities or businesses develop in areas with limited or no existing power infrastructure, there is a strong case for constructing a nearby substation. Supplying power from distant substations is inefficient due to increased power loss as heat

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Power Transformer - power systems engineering - PEguru

Power Circuit Breaker – Operation and Control Scheme

Substation Design, Substation Protection and Control / By / / 6 minutes of reading

Understanding a breaker scheme is important if you plan on designing a substation. Quite often, it is overwhelming to make sense of the entire scheme at a glance. The figure below depicting a circuit breaker scheme will be used to explain various elements of the PCB’s design and its control.

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Directional Comparison Unblocking (DCUB) Scheme

Substation Protection and Control / By / / 3 minutes of reading

The DCUB Scheme, like POTT Scheme, uses two frequencies to maintain system protection. When the system is operating under normal condition, the transceiver emits the “Guard” frequency. When a fault appears in the system, the distance relays shift the carrier to “Trip” frequency. This is where the similarities between POTT and DCUB schemes end.

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Directional Comparison UnBlocking Scheme
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