By admin On Wednesday, June 16th, 2021
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MY PHOTOS, 16.06.2021. DOCUMENT OF THE END OF FIELD “D” IN ATAR OF THE VILLAGE OF VREOCI, MUNICIPALITY OF LAZAREVAC

MY PHOTOS, 16.06.2021. DOCUMENT OF THE END OF FIELD “D” IN ATAR OF THE VILLAGE OF VREOCI, MUNICIPALITY OF LAZAREVAC Author of text and photos: Radoje Janković. LEGACY FOR THE FUTURE, HISTORY More...

By admin On Friday, May 28th, 2021
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Lightning strikes in the tree and consequences…

Lightning strikes in the tree and consequences… A case  from, August, 2019.  Edited for Portal  by Radoje Jankovic  Photos: Oliver Damjanic Today I was with a friend to check the More...

By admin On Friday, May 28th, 2021
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SINGLE PHASE TRANSFORMER, MAKING

SINGLE PHASE TRANSFORMER, MAKING JEDNOFAZNI TRANSFORMATOR, IZRADA Author: Radoje Jankovic. Photos: My friend Vikler Vikler Napon primara, Primary voltage: 400 V, 50 Hz Napon sekundara, Secondary  More...

By admin On Sunday, March 14th, 2021
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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
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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
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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
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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
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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
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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
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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...