Design

Power

Prokuma can deliver power designs for your plant including:

· Main service gear ·
· Auxilliary distribution gear ·
· Backup generation with clean UPS and transfer switch ·
· Bus tie systems ·
· Transformer load sharing ·
· Cable tray routing ·
· Feeder sizing/routing ·
· Power factor correction ·

Controls

Prokuma can deliver control panel designs and customizations for your plant including:

· Hazardous locations (Class I, II, III, Divisions I and II) ·
· UL 508A designs ·
· Multi-drive systems ·
· Distributed/Standalone PLC systems ·
· Safety systems ·
· Operator control stations ·

Protection

Short-Circuit Analysis

Without conducting a short-circuit analysis, you cannot know for sure if your protection devices are rated to properly protect personnel and equipment. Prokuma can model your system and determine the worst-case short-circuit current available each protection device. This will insure that when a fault occurs, your protective device will be ready. Over time, facilities add more machines and some with large motors. AC motors act as generators during a fault's sub-transient time period. Depending on the number and size of motors in your facility, this can have a substantial impact on the protective devices' operating times or even their suitability for their circuit.

Coordination

After performing a short-circuit analysis on your system, coordination is the next step. By properly coordinating protective devices, it is much more likely that a fault will be isolated without tripping unnecessary upstream equipment. We can help you determine the appropriate circuit breaker settings to achieve these results.

Quality

Analysis

Poor power quality can be created by the introduction of various harmonics into your plants power system. This can be troublesome for network equipment, motors, and other devices. We can analyze your power and determine the quality.

Correction

After performing a power quality analysis, our engineers can help you determine the appropriate corrective actions to reduce harmonics and voltage sag/swells.

Arc Flash

Hazard Analysis

Arc flash hazards have gained a lot more attention over the past decade. After performing a short-circuit analysis and coordinating your protective devices, we can perform an arc flash hazard analysis. This will help you protect your employees from serious danger when working in the vicinity of electrical equipment. Do not make the assumption that the incident energy of a fault is lower the further away from the service that the fault occurs. Protective devices can operate slower with less fault current and actually let a higher amount of energy through than a high current fault.

Correction

Some measures can be taken to reduce the incident energy during an arc flash including the use of current-limiting fuses, adopting remote racking procedures, and altering transformer impedances to name a few.

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