Biddle Three Phase Turn Ratio Tester Repair and Calibration by Dynamics Circuit (S) Pte. Ltd.

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Transistors, How do they work ?

Dear friends, Please support us at Patreon, so that we can continue our free educational service The invention of transistors revolutionized human civilization like no other technology. This video demonstrates working of a Bipolar Junction Transistor (BJT) with it's practical applications such as transistor as an amplifier and as a switch with help of animation. Along with transistor working of diode is also explained in the video. The video covers following topics - structure of Silicon atom, doping, N type doping, P type doping, working of Diode, working of NPN transistor and dual stage amplification. Like us on FB : Voice-over artist :

Three phase explained

Kitchen-table presentation: three-phase electricity supply explained with a hydraulic analogue, by energy-management trainer Vilnis Vesma

Understanding STAR-DELTA Starter !

You might have seen that in order to start a high power rating induction motor, a starting technique called star-delta is used. In this video, we will understand why a star-delta starter is needed, and how it is accomplished practically with help of animation. We thank our patrons for making LE's educational service sustainable. Please support us at so that we will have the capability to release 2 videos/month. Curious about how LE was born ?, Check out our story : Like us on FB : Voice-over artist :

Why 3 Phase Power? Why not 6 or 12?

Power Transmission Engineer Lionel Barthold Explains how 3 phase, 6 phase, and 12 phase power works, advantages, disavantages, and hopes for the future. Rotating phases, form an anisotropic tube. He worked on experimental 6 and 12 phase power lines at his company Power Technologies, Inc. before it was sold to Siemens after a long successful career. The experimental polyphase lines were located in Malta, New York, not far from company headquarters in Schenectady.

How does an Induction Motor work ?

Please check out our new video on the same topic Help us to make future videos for you. Make LE's efforts sustainable. Please support us at ! Working of 3 Phase Induction motor is explained in this video with help of animation. They are the most commonly used electric motors. Here basic operation principle of an induction motor is introduced in a logical manner. Concepts of rotating magnetic field, synchronous speed and slip is well introduced in this video. Like us on Facebook :

Biddle Three Phase Turn Ratio Tester Repair and Calibration by Dynamics Circuit (S) Pte. Ltd.

Biddle Biddle TTR 550027 (discontinued) three phase turn ratio tester unit. Can be revived at the fraction of the original cost.

Dynamics Circuit (S) Pte. Ltd. service you through our best systematic process and well calibrated equipment with sound know how person in this field. We offer repair & maintenance services like medical equipment repair & maintenance services, CNC Machines repair & maintenance services, telecommunication equipment maintenance services, and many more

Repairs at Dynamics Circuit (S) Pte. Ltd. are the “Third Party Service Organization” with full fledged team with advanced Test equipment for Service. Customer Communication & Satisfaction are the main aspects of Service.

Talk to us, the Experts!

Dynamics Circuit (S) Pte. Ltd.
15 Yishun Industrial Street 1, #09-28 Win 5,
Singapore 768091.
Contact: (+65) 6754 7024
Email: [email protected]

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