What is protection selectivity?
What is the selectivity of protection of the electrical network. The main functions and types of selectivity of protection in electrical installations. An example of a selectivity map.
Electrical equipment
Please specify the section:
Automata and RCD
Relays, contactors, sensors
Electric motors
Electric meters
What is relay protection and what is it for?
Purpose of relay protection and basic requirements for it. Find out what RPA consists of and where it is used in energy.
5 best ways to seal an opening circuit breaker
5 best ways to seal a circuit breaker. How to seal the opening machine with a sticker, a cap, using boxing and a special shield.
Why connect the machines through the comb and how to do it right?
Connecting the connection bus for the machines. The design, purpose and main advantages of the comb for circuit breakers. Installation instructions.
What is an ASKUE system
What is an ASKUE system and what is it for. The principle of operation of an automated system of commercial electricity metering. The installation procedure of ASKUE.
What is a cam switch and what is it for?
The device, the principle of operation and the purpose of the cam switches. Find out what this unit is, how it works and where it is used.
How to connect a pulse relay
Video instruction and connection diagram of a pulse relay for lighting control. Learn how to properly install and connect a bistable relay yourself.
How to independently connect a thermal relay - overview of schemes
DIY installation instructions and connecting a thermal relay. Connection diagram of the thermal relay to the magnetic starter.
What is protection selectivity?
What is the selectivity of protection of the electrical network. The main functions and types of selectivity of protection in electrical installations. An example of a selectivity map.
What are reed switches, how are they arranged and work?
What are reed switches, how do they work and where are they used. Main technical characteristics of reed switches. Decoding of the reed switch marking.
How to install an electricity meter - step by step instructions
DIY installation instructions. PUE requirements for installation. Video on installing a single-phase and three-phase electric meter.
What is a modular contactor and what is it for?
What is a contactor and why is it needed. The device, principle of operation and purpose of the contactor. Video review of the characteristics of the device.
How to check the operation of the circuit breaker?
Methodology for verifying the performance of circuit breakers with voltage up to 1000 V. Frequency of loading automatic machines, as well as a sample filling protocol.
Instructions for choosing a thermal relay to protect the motor
Not sure how to choose a thermal relay for a three-phase or single-phase motor? In this article, we examined the conditions for choosing a heater according to current and power.
How to install and connect a power limiter
Instructions for connecting power limiters OM-630, OM-310, OM-110. Learn how to properly install and connect a power limiter with your own hands.
The difference between the contactor and the starter
Not sure how the contactor differs from the magnetic starter? For you, we have provided the main differences between the starter and contactor.
What is a power limiter and what is it for?
The device, the principle of operation and the purpose of the power limiter. Find out what OM is, why it is needed and where it is used. A brief description of the apparatus.
What is an intermediate relay and what is it for?
The device, principle of operation and purpose of the intermediate relay. Find out what it is, how this unit works, and what it is for.
How to properly remove the electricity meter
Instructions for dismantling the electric meter in the house and apartment. Find out how to properly remove the electricity meter during replacement, during repair or for verification.
How to reprogram the electricity meter and how much does it cost
What is the reprogramming of the electric meter, why is it needed and at whose expense is done. Is it possible to reprogram the counter with your own hands and how to do it.
What is a cross-module and why is it needed?
Not sure what a cross module is and what it is used for? In this article, we examined in detail the device, purpose and scope of cross-modules.
What is a pulse relay and what is it for?
The device, the principle of operation and purpose of the pulse relay. Find out what the bistable relay consists of and how it works. Device connection diagram.
How does an old and new type electricity meter work?
The device and principle of operation of the electricity meter. Find out how the induction and electronic meters work. The design of the counting mechanism.
What is relay protection and what is it for?
Purpose of relay protection and basic requirements for it. Find out what RPA consists of and where it is used in energy.
What is the difference between electromechanical RCD and electronic?
How to distinguish electronic RCD from electromechanical and what is better to choose. The disadvantages of the electronic circuit breaker.
What is a thermal relay and what is it for?
The device, principle of operation and purpose of the thermal relay. Find out what this unit consists of, how it works and what it is used for.
