Low voltage networks, unless a replacement uninterruptible power supply (with galvanic insulation) or a LV/LV transformer is used, are influenced by MV. This influence takes the form of: capacitive coupling, galvanic… Read more
Jun 30, 2017 | Edvard
This technical article deals with the assessment of risk to personnel in the case of an abnormal situation leading to an uncontrolled release of SF6 gas into the atmosphere. Generally… Read more
Jun 28, 2017 | Edvard
In a heating system a motor-driven pump with a power of 200 kW, cos φ = 0.88, η = 0.93 is connected through an overhead cable with 1= 45 m…...
Jun 26, 2017 | Edvard
Synchronisers are required at points on a power system where two supplies (either generator and grid, or two grid supplies) may need to be paralleled. They are more than just… Read more
Jun 26, 2017 | Edvard
Well documenting the SCADA system requirements is probably the single most significant contributor to the success of a SCADA project. It may seem obvious but let’s say it anyway: writing… Read more
Jun 23, 2017 | Edvard
Wiring industrial control panels is a complex process and it needs a number of carefully planned and performed details. However, there are dozen of tips and advices on how to… Read more
Jun 21, 2017 | Edvard
All home electrical systems must be bonded and grounded according to code standards. This entails two tasks: First, the metal water and gas pipes must be connected electrically to create… Read more
Jun 19, 2017 | Edvard
Lock-Out / Tag-Out (LOTO) refers to the specific practices and guidelines to safeguard employees from the unexpected start-up, movement, activation, energizing, release of energy, etc of machinery, equipment, plant, systems… Read more
Jun 16, 2017 | Edvard
The pre-commissioning tests need to be carefully programmed so that they take place in a logical and efficient order, in order that no equipment is disturbed again during subsequent tests…. Read more
Jun 14, 2017 | Edvard
The commissioning procedure of substation busbars for differential protection and other busbar protection schemes involves a large number of input and output circuits that require a verification check in both… Read more
Jun 13, 2017 | Edvard
