By admin On Sunday, March 14th, 2021
0 Comments

VFD Scheme – Modern electric motor drives

VFD Scheme – Modern electric motor drives Draws and writes: Radoje Janković. In this group of schemes, I will present mostly practical schemes of modern electric motor drives. In school and university More...

By admin On Tuesday, March 9th, 2021
0 Comments

Multi-winding variable frequency drive transformers

Author: Radoje Jankovic Multi-winding variable frequency drive transformers Multi-winding  variable frequency drive (VFD) transformer suppzing variable frequency drives. These variable frequency drive More...

By admin On Tuesday, March 9th, 2021
0 Comments

VFD tansforrmers some practical details and explanations

  Author and drawer Radoje Jankovic Note: If you want to be a electrical expert, you must to draw high quality any kind of electrical circuit diagrams and respecting IEC standards!   VFD tansforrmers More...

By admin On Tuesday, March 9th, 2021
0 Comments

Frequency Regulated Drives – Practical Schemes, Diode Supply Units (DSU)

Drawing and text by author Radoje Jankovic Frequency Regulated Drives – Practical Schemes,  Diode Supply Units (DSU) Here are presented the practical schemes with diode-thyristors supply units More...

By admin On Sunday, March 7th, 2021
0 Comments

FR Drives – Practical schemes of frequency speed regulation of asynchronous motors using high power frequency regulators

Practical schemes of frequency speed regulation of asynchronous motors using high power frequency regulators Drawing and text by author Radoje Jankovic 1. High voltage cubicle of the frequency regulation More...

By admin On Wednesday, February 10th, 2021
2 Comments

Practical problem of connecting a low voltage manual switch for high currents with a solution

Author: Radoje Jankovic Pictures are from my friends. Problem text Figure 1&2 shows the cable lug for cable cross-sections of 240 mm2 to be connected to the connection terminals of the manual low-voltage More...

By admin On Tuesday, February 2nd, 2021
2 Comments

HIGH VOLTAGE OVERHEAD LINES WITH SELF-SUPPORTING CABLES

HIGH VOLTAGE OVERHEAD LINES WITH SELF-SUPPORTING CABLES Making of 10 kV joint on air self-supporting cable in winter conditions. As can be seen from the pictures, the installers had to lift a gas gas bottle More...

By admin On Tuesday, January 12th, 2021
0 Comments

Aswan Hydroelectric Power Plant on the Nile, Egypt

Edited for the portal by Radoje Jankovic Aswan Hydroelectric Power Plant on the Nile, Egypt – Few Words. Fig. 1. I took over from Slavica Maric On the day, 09.01.1960. On the Nile, in Egypt, by More...

By admin On Thursday, January 7th, 2021
0 Comments

NIKOLA TESLA, 10.6.1856 – 7. 1. 1943 – 7. 1. 2021.

Author: Radoje Jankovic. Exactly 78 years ago on Serbian Orthodox Christmas, Nikola Tesla was found dead in his Hotel room. January 7, 1943 – 2021. January 7, 2021. 78 anniversary of Nikola Tesla’s More...

By admin On Monday, January 4th, 2021
0 Comments

A FEW WORDS ABOUT BUSBARS

A FEW WORDS ABOUT BUSBARS Author: Radoje Jankovic Fig. 1. Here, we see flat (rectangular cross-section) low-voltage painted busbars in one cell of the distribution switchgear. Busbars are groups of “conductors” More...