Inside an affordable 1000VA Variac: Build Quality, Grounding & Accuracy Tested
Автор: ELECTROWHATS
Загружено: 2026-01-26
Просмотров: 8
In this video, I explain what a variac (autotransformer) is, how it works, and how it is used to safely control AC mains voltage when testing electronic equipment.
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🔧 Topics Covered
• Variac explained
• AC voltage control for electronics testing
• Variac teardown and internal construction
• Grounding and safety issues
• Voltage accuracy and multimeter testing
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Table of Contents:
00:00 - Introduction
01:25 - External Look
02:50 - Dialing Up Voltage Demo
04:33 - Looking Inside The Variac
10:29 - A Look At The Main Coil
11:50 - Wiper Connecting Wire View
12:45 - Grounding Concern Fix
13:59 - Operation Overview
15:29 - Testing Output Accuracy of Dial & Meter Display
19:06 - Outro
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