﻿ February 2018 - Part 2

## Indications on the Puma-103.1 M electric meter do not change

When the load is turned on, the red light on the Puma-103.1M counter starts flashing, but the readings on the counter do not change.

## What to do if the voltage is 400 V on two phases of the three and how will the meter work?

After connecting the site to the overhead line, it was found that the voltage in the two phases is 400V, phase 3 is 230V. Probably, electricians mixed up phase 3 and zero on SIP. What to do?

## Is it possible to connect a single-phase generator to a three-phase network?

Is it possible to connect a single-phase ABP to a three-phase switchboard? I found information on how to connect the generator to a three-phase ATS and understood its connection principle.

## What kind of machine is needed for a three-phase motor, the current of which is 15A?

Which one should I choose to automatically turn off for an asynchronous motor with a short-circuit rotor, whose rated current is 15 A, voltage is 380 V.

## Frequent turning on and off devices from the outlet

With constant pulling and inserting, the contacts of appliances and sockets deteriorate. How then to charge phones and tablets? You have to constantly use the outlet.

## Is it possible to connect the ceiling with the light switch turned off?

The ceiling with a light bulb broke, there is no way to turn off the machine. Can I, with the switch off, screw these 2 wires back to the plafond?

## What cable and machine do you need for input

What cable section and circuit breaker rating should I choose for input? Consumers: oven, washing machine, air conditioning, lighting and outlet groups.

## Electricity meter connection diagram in a communal apartment

In a communal apartment it is allowed to connect two electricity meters in series? What should be considered when connecting the meters in series?

## How to convert amperes to kilowatts and vice versa

How to convert amperes to kilowatts and watts. Formulas and table with which you can quickly translate the current strength into power and vice versa. Examples of calculations.

## Why do I need a phase switch and where is it used?

What is a phase switch and where does it apply. Connection diagram of the phase switch to the network. Rules for choosing a switch between phases.

## Characteristics of the control cable KVVG

Technical characteristics of the KVVG cable. How the marking of the conductor is deciphered and where it is used. Section table of the control cable KVVG.

## Why does one of the cooking hobs not work when the oven is on?

When the oven is on, the upper right burner does not work, turn off the oven it works fine, turn it on again off. What is the problem, what to do?

## Is it possible to install a load priority relay in two of three phases?

There is a 12 kW three-phase heating boiler. There is backup power from the generator. Is it possible to limit the load by installing a priority relay in two phases?

## Why does the indicator show voltage on two wires?

I am testing with an indicator where the phase is and where is zero, the indicator shows that there is voltage in two wires. What if the voltage is in phase and at zero?

## Capacitor connection diagram for starting the engine

Please give the connection diagram of the capacitor to an induction motor and advise its capacity. Engine 50HZ; 0.37kw; 1.62 / 09A (220/380).

## Cable for connecting outlets and street lights

Which cable or wire to choose for outdoor installation for small loads. VVG, PVA, NYM are not designed for the street, probably because they have a PVC shell,

## Do I need to ground batteries with electric heating elements?

Hello, I want to make heating from cast-iron batteries at the cottage, and to incorporate shadows into them. So you need to ground the batteries or not. And how to do it?

## How to control lighting in a long corridor from two places

How to make the inclusion of light from two places. Lighting control in a long corridor with two light switches. The principle of operation of the circuit.

## Will the installation of RCDs at 63A help if the RCD at 50A works?

With the simultaneous operation of the warm floor and the oven, an RCD of 50 A is triggered, after 10-15 minutes. If I put an RCD on 63A will something change?

## Runway Submersible Wire Characteristics

Runway wire specifications. Explanation of the marking of the conductor and the table of sections. Where is the runway used and why?

## Why does the Iph indicator not equal to I0 light up on the Energy meter counter?

On the meter of the Energy meter CE 200, the indicator Iph does not equal I0. Maybe this is due to the fact that a neighbor connected a phase or zero from me? Or another reason?

## Why does the introductory machine knock out during the operation of the boiler, but the group one does not work

Hello! I have a 6 kW electrode boiler connected to a 32 A machine. A general 50A machine. When the boiler is operating, a 50 A machine is knocked out. Tell me how to solve the problem.

## Is it possible to set an RCD of 10 mA to a wet group?

I want to include a washer, dishwasher, chopper in the wet group and protect the 10 mA RCD. They say that such an RCD is sensitive and will work. Is it so?

## Where to get food for the outlet in the bathroom?

Where to get food at the outlet? There are no boxes in the bathroom, there is a 3-wire lighting wire (yellow-green is not used) and a 2-wire wire for the hood.