October 25, 2017

Control Panel Technical Design Guide (Thermal Condition Analysis and Optimisation): It’s very important to know the critical temperature for each device and the critical humidity level for each device. The thermal management solution must be sized according to the critical temperature of the most delicate element of the enclosure. This temperature should never be exceeded. The mean working temperature recommended for the inside of the enclosure is 35°C. This is the reference temperature for the control equipment integrated in the thermal solution.

October 25, 2017

Designing a new IEC 61850 substation architecture and solving encountered issues: The primary role of Substation Automation System (SAS) is to provide safe, secure, and reliable local/remote control and monitoring of high-voltage AC distribution and transmission stations. Historically, the Substation Automation System (SAS) at Manitoba Hydro (MH) was implemented in the substation using RTUs and redundant PLCs, with redundant computers for the local HMI and without any hardwired control backup.

October 17, 2017

25 High Voltage Transformer Tests and Commissioning Procedures (Before Energizing): When transformers are received from the factory or reallocated from another location it is necessary to verify the following: that each transformer is dry, no damage has occurred during shipping, internal connections have not been loosened, the transformer’s ratio, polarity, and impedance agree with its nameplate, its major insulation structure is intact, wiring insulation has not been bridged, and the transformer is ready for service.

October 15, 2017

Control Panel Technical Design Guide (EMC Protection and Panel Wiring Tips): If high-power and low-power devices are juxtaposed without taking precautions and if cables of different kinds are routed in the same raceways, serious malfunctions are likely. By allowing for the rules described below as of the design stage, one will avoid tedious troubleshooting, the ex-post installation of filters, or even reworking of the layout and wiring.

October 12, 2017

The Motor Book: Welcome! This motor book will provide you with a wealth of information about electrical motors, how they work, what they can be used for, and so on. But before we delve into detailed explanations of the world of electrical motors, we should perhaps spare a brief thought for the purpose of these motors. After all, motors are always designed to carry out specific tasks.

October 02, 2017

Electrical Inspection Checklists (Checking, Verifying and Reviewing Electrical Installations)

This guide contains 77 most important electrical inspection checklists taken from the 2014 Electrical Inspection Manual with Checklists. The checklists are in PDF format and can be completed electronically or printed and used as hard copy. The checklists are intended to help inspectors keep track of the numerous aspects of an electrical installation that must be checked, verified, reviewed, determined, or otherwise examined for NEC® compliance...

October 01, 2017

Ölçü trafoları (IT,Instrument Transformer), voltajı veya akımı, iletim ve dağıtım sistemlerinde yüksek değerlerden, alçak gerilim ölçüm cihazları tarafından okunabilecek düşük değerlere dönüştürmek için tasarlanmıştır

September 28, 2017

Bazı şirketlerde yapılan politik değişimler, elektrikli makinelerdeki bakım ve işletme çalışmalarında büyük bir etkiye sahiptir. Bunlar, bakım çalışmalarında bir çok kez aksaklıklara yol açabilir ancak kısa vadede maliyeti düşürürken, ortalama ve uzun vadede makinelerin kullanım süresindeki riski daha yükseltecektir.

September 28, 2017

Zayıf topraklama, yalnızca gereksiz duruşlara neden olmakla kalmaz, aynı zamanda tehlikelidir ve ekipmanın arızalanma riskini arttırır. Etkili bir topraklama sistemi olmadan, ekipman arızalarını, harmonik bozulmaları, güç faktörü sorunlarını ortadan kaldıramayız ve olası aralıklarla...

September 27, 2017

Learn earth ground resistance principles, testing methods and applications

Why test grounding systems? Good grounding isn’t only for safety. It is also used to prevent damage to industrial plants and equipment. A good grounding system will improve the reliability of equipment and reduce the likelihood of damage due to lightning or fault currents.

September 06, 2017

In any electrical system power system, instrument transformers forms part of main components in metering (reading instruments, recording instruments, tariff systems), protection and control system applications...

September 06, 2017

Whether in an industrial or utility application, power transformers are among the most critical assets of any power system required to maintain the reliable and efficient flow of electricity. Condition and risk assessment of these valuable assets is needed more than ever. With the averag...