What is a pantograph isolator?

Pantograph Isolators are designed for independent single pole operation or three pole mechanical ganged operation. The relevant standards for Disconnectors are IEC: 62271-102 and 62271-1 (Supersedes IEC: 60694) and IS: 9921 and for insulators IEC: 60273 and 60168 and IS: 2544.

Where is pantograph isolator used?

The application of pantograph disconnectors is especially useful for providing connection between busbars arranged at two different vertical levels. Due to their compactness, electric trains also use the pantograph design to connect the train to high voltage overhead lines.

How do Disconnectors work?

The disconnector (sometimes called the disconnect in some circles) has a two-fold purpose in semi-automatic pistols. One of them is to disengage the connection between the trigger and the sear (hammer or striker, as the case may be in a particular pistol) each time a shot is fired.

What is difference between isolator and disconnector?

Isolators and Disconnectors are types of simple mechanical switch. Circuit Breaker is operated Automatically and Manually. Isolator and Disconnector are operated Manually. Isolator is an OFF-Load Device i.e. Disconnector can be operated when the power supply is totally OFF.

What is the function of pantograph?

Pantographs are a special devices mounted on electric trains to collect current from one or several contact wires. They consist of a pantograph head, frame, base, and drive system, and their geometrical shape is variable.

Why is it called a pantograph?

The pantograph is a common type of current collector. Typically, a single or double wire is used, with the return current running through the rails. The term stems from the resemblance of some styles to the mechanical pantographs used for copying handwriting and drawings.

What does a pantograph do?

pantograph, instrument for duplicating a motion or copying a geometric shape to a reduced or enlarged scale. Pantographs are used for reducing or enlarging engineering drawings and maps and for guiding cutting tools over complex paths. Artists specializing in miniatures use pantographs to achieve greater detail.

What is the purpose of isolator?

An isolator is a device used for isolating a circuit or equipment from a source of power. An isolator is a mechanical switching device that, in the open position, allows for isolation of the input and output of a device.

What is MCB isolator?

The isolator is an isolation device used to disconnect the load from the main supply. MCB is a protection device used to protect electrical lines from the negative effects of excessive currents. The isolator is a mechanical switch that isolates a part of the circuit from the system for safe maintenance works.

What are the types of pantograph?

There are two types of pantographs: single arm and double arm. The most common type of pantograph today is the single arm pantograph (sometimes called ‘Z’-shaped), which has evolved to provide a more compact and responsive design at high speeds.

What is pantograph and its applications?

A pantograph is an old mechanism and is widely used in electrical locomotives to transfer electricity from catenary lines. It consist of 5 linkages forming parallelogram, each of the link is connected with the help of pin joint in order to form a revolute pair.

What is a pantograph type isolator?

The pantograph type isolator allows current switchgear installation and requires minimal space. This type of insulator includes a post insulator as well as an operating insulator. The isolator can be divided into 3 parts based on the placement based. 1. Bus side isolator: The bus side isolator is used to connect to the main bus.

Which type of isolator permits current switchgear installation?

The pantograph type isolator permits current switchgear installation, and it requires the least space. This type of insulator includes a post insulator as well as an operating insulator. According to the power system location, the isolator can be classified into three types namely bus side, line side and transfer bus side isolator.

What is an isolator and how does it work?

Isolator applications have been found to provide safety during service and maintenance of power systems, power grids, and transmission lines. It is used in homes to provide the necessary safety and security against any electrical problem. There are many types of isolators available in the market.

What are the different types of power system location based isolator?

According to the power system location, the isolator can be classified into three types namely bus side, line side and transfer bus side isolator. Power System Location based Isolators. Bus Side Isolator is a type of Isolator that connects by the major bus. Line Side Isolator stay connected by a feeder in line side.