Quick Answer: What Are The Three Basic Types Of Protection?

What are the types of protection?

Types of protectionHigh-voltage transmission network.

Generator sets.

Overload and back-up for distance (overcurrent) …

Earth fault/ground fault.

Distance (impedance relay) …


Low-voltage networks.


What is basic protection in electrical terms?

Basic protection is defined as: Protection against electric shock under. fault-free conditions. Basic protection is provided to protect. persons or livestock coming into direct.

What is protected zone?

Definition: Protection zone is defined as the part of the power system which is protected by a certain protective scheme. It is established around each power system equipment. When the fault occurs on any of the protection zones then only the circuit breakers within that zone will be opened.

What are 3 types of intellectual property?

There are three primary types of Intellectual Property: copyrights, trademarks, and patents.

What is the main objective of protection?

Objective of Power System Protection The main philosophy about protection is that no protection of power system can prevent the flow of fault current through the system, it only can prevent the continuation of flowing of fault current by quickly disconnect the short circuit path from the system.

What’s a relay switch?

Relays are switches that open and close circuits electromechanically or electronically. Relays control one electrical circuit by opening and closing contacts in another circuit. … When a relay contact is Normally Closed (NC), there is a closed contact when the relay is not energized.

How would you describe intellectual property?

Intellectual property (IP) refers to creations of the mind, such as inventions; literary and artistic works; designs; and symbols, names and images used in commerce.

How do I protect my intellectual property?

Here are five different ways to protect your intellectual property.Register copyrights, trademarks, and patents. … Register business, product or domain names. … Create confidentiality, non-disclosure or licensing contracts for employees and partners. … Implement security measures. … Avoid joint ownership.

What are the three zones of protection?

As the figure above shows, there is a zone of protection covering from each feeder breaker (Blue dotted lines), a zone covering each low-side bus, a zone covering each transformer (Green dotted lines), a zone covering each high-side bus and a zone covering each incoming transmission Line (Yellow Dotted lines).

What is a protection device?

A device used to protect equipment,machinery,components and devices,in electrical and electronic circuit,against short circuit,over current and earth fault,is called as protective devices. Necessity of Protective Devices. Protective devices are necessary to protect electrical appliance or equipment against.

What is a method of fault protection?

Fault protection is provided by: protective earthing; protective bonding; and. automatic disconnection in the event of a fault.

What fault does an RCD protect against?

An RCD is designed to protect against the risks of electrocution and fire caused by earth faults. For example, if you cut through the cable when mowing the lawn and accidentally touched the exposed live wires or a faulty appliance overheats causing electric current to flow to earth.

What is correct way the segmentation program address is stored?

12. What is the correct way the segmentation program address is stored? Explanation: OS can retrieve the real address via looking for the table then making a simple calculation: address of the name + offset.

What is primary protection?

The main protection or primary protection is the first line protection which provides quick-acting and selective clearing of a fault within the boundary of the circuit section or element it protects. The main protection is provided in each section of an electrical installation.

What is overcurrent protection?

An overcurrent protection device protects the circuit by opening the device when the current reaches a value that will cause an excessive or dangerous temperature rise in conductors. Most overcurrent protection devices respond to both, short-circuit or ground-fault current values as well as overload conditions.

What are the 5 types of intellectual property?

Intellectual property (IP) is a category of property that includes intangible creations of the human intellect. There are many types of intellectual property, and some countries recognize more than others. The most well-known types are copyrights, patents, trademarks, and trade secrets.