What is relay interlocking system?
Relay interlocking Interlockings effected purely electrically (sometimes referred to as “all-electric”) consist of complex circuitry made up of relays in an arrangement of relay logic that ascertain the state or position of each signal appliance.
What is interlocking in motor control?
To interconnect the motor circuit in such a way, in which the second motor will not start until the first one run likewise the third one motor will not run unless the second one run and so on. This kind of motor circuit connection is called interlocking.
How many types of interlocking are there?
There are three types of interlocks: – mechanical, – electrical, – logical.
How does the mechanical interlocking system work?
Mechanically interlocked circuit breakers are intended to prohibit both power sources from being simultaneously connected to the load. The interlocking system disables one circuit breaker by mechanically preventing handle movement from the Off position while the other circuit breaker is in the On position.
What is CBI system?
CBI stands for Continuous Business Improvement and covers all the organisation’s improvement projects. It could be lean, quality or strategy execution projects. The CBI System is about managing the organisation’s improvement processes and specific improvement projects.
What is traction interlock switch?
The TIS (traction interlock switch) is a normally sealed switch that enables the Traction Interlock circuit on the vehicle in question to be overridden, allowing traction power to be obtained despite the loss of interlock either through a fault or a door not being able to be shut properly.
What is the difference between relay and contactor?
Control Relay: It is a device through which contacts in one circuit are operated by an alteration in conditions in the same circuit or in associated circuits. Contactor: It is a device which is used for repeatedly establishing and interrupting an electric circuit under normal conditions.
What are the principal of interlocking?
– The basic principles of interlocking may be laid down as follows :- 1. It shall not be possible to take “off” conflicting signals at one and the same time. 2. It shall not be possible to take “off” signal for the running line until :- (a) all points on the running line are correctly set and facing points locked.
What is the difference between mechanical interlock and electrical interlock?
Mechanical interlocking involves key system and the process of changing, opening and closing the circuit is mechanical. Extra manpower is required in switching operation of the circuit. Electrical interlocking is automation in interlocking and switching operation is performed automatically and electrically.
What is a software interlock?
Software Interlock is an interlock accomplished through an application program within a Programmable Electronic System. ( Refer to the Hard Wired Interlock)
What is railway CBI?
The Central Bureau of Investigation (CBI) has registered a case against four people, including a senior official of Indian Railway, in connection with a bribery case of Rs 1.29 crore, officials said. “The searches have led to the recovery of several incriminating documents,” added the CBI spokesperson.
What is relay based interlocking?
Railway Salient features of Relay based Interlocking Relay Interlocking is a system of implementing principles of interlocking for safe train operations at a Station with the help of electrical circuits wired through electro-magnetic relay contacts and coils. Difference between Route Setting Type and Non-Route Setting Type
How does the Railway interlocking system work?
The electro-mechanical status of the whole set of relays connected to the track identifies the “status of the railway” in a certain instant and it represents the input value for the interlocking system. The command to set and clear the route for the train is taken in the form of button form the Station master’s console, also known as control panel.
What is the meaning of interlock in electronics?
For use in electronics and computing, see Interlock (engineering). In railway signalling, an interlocking is an arrangement of signal apparatus that prevents conflicting movements through an arrangement of tracks such as junctions or crossings. The signalling appliances and tracks are sometimes collectively referred to as an interlocking plant.
What are the different types of interlockings?
Interlockings can be categorized as mechanical, electrical (electro-mechanical or relay -based), or electronic/ computer-based.