﻿ October 2018 - Part 4

## Voltage drops in the apartment when connecting the refrigerator

If you turn on the refrigerator, the computer monitor in another (nearby) outlet will turn off for a second and turn on again. Will installing a stabilizer help?

## Why does the mains voltage drop when I turn on the air conditioner?

When you turn on the air conditioner in thermal mode, the voltage drops sharply. After turning off the air conditioner, the mains voltage returns to normal. What is the reason?

## Can I use 2 voltage regulators in series?

Can I use 2 voltage regulators connected in series? Or can one of them be removed? Does it interfere or help balance the tension?

## How to lower constant and alternating voltage - an overview of ways

Tips for lowering AC and DC voltage. Effective ways to lower the voltage in the network and in electronics. Video tutorials on the topic.

## How to find current power - formulas with calculation examples

Formulas with which you can find power, knowing the strength of the current, voltage and resistance. An example of calculating the power of a three-phase electric motor.

## Why does the outlet not work after charging the laptop?

The outlet does not work, the charger that charged my laptop was plugged into it. Charging stopped and I smelled of burning. What is the reason?

## PuV wire specifications

Technical characteristics of PuV wire, scope and cross-section table. Decoding of the PuV marking, analogues and manufacturers of the installation conductor.

## What is the difference between alternating current and direct current - simple explanation

What is the difference between AC and DC in a circuit. How to get alternating current and direct. A simple explanation for beginner electricians.

## Evaluate the wiring diagram in a private house

I want to reconstruct the wiring in my village house. Can you check if the wiring diagram is correctly drawn up or is there an error somewhere?

## The greatest discoveries of Nikola Tesla to be aware of

Discoveries and inventions of Nikola Tesla that you should be aware of. The creations of the Serbian scientist who changed the whole world. Description of the most important inventions of Tesla.

## How to find the current strength in a circuit

Formulas with which you can find the strength of the current through power, resistance and voltage. Examples of solving problems in which it is necessary to calculate the current strength in a circuit.

## How to make the light turn on every other time?

There is a small and main light on the chandelier.How to do. so that the light turns on every other time? Once turned on - to shine a small light, two - a small light with the main.

## Why do incandescent lamps flash in the model of the Ostankino tower?

A model of the Ostankino tower, it has backlighting by Soviet lamps. When you connect 220v from the outlet, they begin to flicker (sometimes blinks). What is the reason?

## Can I connect car speakers to a power supply?

I connected the speakers from the car to the laptop, everything seems to be playing fine, everything is holding. If I connect the speakers to a 12 volt power supply, will they play louder?

## How to connect an electric motor with unknown characteristics?

An engine without a nameplate, four wires, three of them ring on the tester. How to connect an electric motor with unknown characteristics?

## What reversible switch to put at the entrance of the house, voltage 380V?

380 V, introductory automatic machine 25A, is installed in the house. What is the nominal value of the reversing switch for connecting a 5-kW single-phase generator?

## What kind of machine do you need for a heating cable (pipe heating)?

Which circuit breaker must be put into the circuit when connecting the pipe heating cable? Heating cable 50 meters 220 Volt 780 W,

## Why do LED spotlights burn out when connected to a 12V network?

It is necessary to connect 3 LED spotlights of 10 W voltage of 12 volts. With a parallel connection of the spotlights, they quickly burn out. What to do?

## What if there is no light only in my apartment?

What should I do if the light goes out only in my apartment, but everything is normal in the dashboard? What could be the cause of the malfunction and how to fix it?

## Can I connect a wiper through a laptop power supply?

I want to temporarily wipe the wiper with a laptop power supply, but it has a 20V output. Is it really possible for them to energize the engine or is it better to fasten a dimmer / PWM?

## Connection diagram of the contactor to the electric boiler

There is an electric boiler EVPM-NEXT-12VP and a contactor KMI-22510. The issue with the wires, confused how to connect them. Need a connection diagram of the contactor to the electric boiler.

## The light in the apartment periodically goes out

A day, two or three times, the light goes out for several minutes, then it turns on! Moreover, with a slight load (washing machine and TV). What it is?

## The need to replace wiring in the apartment

The electrician said that you need to replace the entrance to the apartment and change all the wiring inside. The house is 40 years old, the wiring was changed 10 years ago. Do I need to change the wiring?

## Connect 4 LED strips to one power supply

Is it possible to connect four segments of an LED strip of 5 meters each in parallel to the block terminals or connect in parallel to a common wire to one power supply?