Alstom Vax31zg8075bch Trip Circuit Supervision Relay-vax

Alstom Vax31zg8075bch Trip Circuit Supervision Relay-vax
Alstom T&d India Limited
Trip Cir. Supervision Relay-vax
Vax31zg8075bch
Vx 220-250 V—
Made In India
Weight : 1.250 Kg
Ref No : 68495

What is a Trip Circuit?

The term “trip circuit” can be defined as a circuit element in power protection systems that involves tripping the circuit breaker on faulty conditions within the system. The circuit breaker is a mechanical switch designed with the intention of not causing damage to an electrical circuit as a result of overload or short circuit. Several components in the form of coils, contacts, and relays cooperate with each other so as to bring into effect the initiation of a circuit breaker in case of fault.

A trip circuit can go wrong. Open circuits, wiring faults, or stuck coils can make a trip mechanism impossible to work; the entire system stands at risk in such instances. And in such situations, the VAX relay would be enlisted for the task.

Alstom VAX31ZG8075BCH Trip Circuit Supervision Relay: Its Functions and Purposes
The Alstom VAX31ZG8075BCH is made to monitor the trip circuit and all supervising cases, open, closed of a circuit breaker. The core objective of this relay is to ensure that the circuit breaker trip circuit is always in a healthy state; therefore, the circuit breaker can sever the faulty section of the circuit to minimize further damage on a fault occurrence.

Here’s how the VAX relay achieves its objectives:

Continuous Monitoring: A VAX relay continuously monitors the trip circuit, including its trip coil and associated wiring. It can thus identify faults such as an open circuit, loss of supply voltage, or a mechanical failure that would impede its ability to tip the circuit breaker.

Supervision in Multiple States: A VAX relay supervises the circuit breaker open and closed states. This is important because within the trip circuit, faults can occur with the breaker either in service or out of service. The simultaneous monitoring of such conditions thereby provides complete protection.

Alarm Signaling: The relay VAX is signaling an alarm to the operators when a fault occurs in the trip circuit. This notifies the operators to identify where the fault has occurred and to make appropriate corrections, thus possibly allowing maintenance to take place before the fault becomes a problem for the system.

Improving Reliability: VAX relay ensures that the integrated power protection system provides higher reliability with real-time supervision of the trip circuit and ensures that the circuit breaker correctly trips in case of a fault, preventing any loss and saving valuable assets from resulting downtime.

Preventive Catastrophic Failures: In substations, power plants, and industrial facilities, a stuck trip circuit can lead to protracted outages or damage to equipment/ safety hazard. The VAX relay is protective of these risks.

Features

The VAX relay is distinct from other relays primarily due to the following significant features, enabling it to provide superior protection and monitoring in power systems:

Real-Time Supervision: The relay gives full-time, real-time supervision of the trip circuit so that faults are detected at the moment they occur.

Wide Operating Range: The VAX relay has an extremely wide range of application with regard to the operating voltage. It can function well in all kinds of industrial applications with different system configurations.

High Sensitivity: The relay is highly sensitive to slight changes occurring in the trip circuit; thus, any minor fault is detectable right from its occurrence.

Alarm Contacts: The relay contains alarm contacts, which can be connected to a control panel so that fault occurrences may be immediately notified to the operators.

Durability and Reliability: It is geared towards heavy industrial and high-voltage applications and is very rugged and reliable. This relay can perform under severe conditions with minimal support for maintenance.

Applications of the Alstom VAX31ZG8075BCH 

The Alstom VAX31ZG8075BCH Trip Circuit Supervision Relay, with its very wide applications, mostly in sectors where reliability and safety are as important as ever, is mostly used in the following principal applications:

Power generation facilities: Whatever power generation facility it is: thermal, hydroelectric, or nuclear, the protection system shall be reliable enough. The VAX relay ensures that there is an on-going monitoring of the trip circuit so the circuit breaker will work just right in crucial moments.

Electrical Substations: Substations are the backbone of electrical distribution systems. VAX relay protects transformers and switchgear through its monitoring of circuit breakers to ensure they will operate in case faults are detected.

Industrial Manufacturing Plants: In industries which must run continuously-steel mills, chemical plants and oil refineries for example-any power outage will result in costly shutdown. The VAX relay provides assured operation of the trip circuit-no longer a loss of continuity.

Railways Electrification Systems: Alstom, being one of the top companies in the railway industry, applies the VAX relay in its railway electrification systems as well. These ensure that electrical circuits are moved without compromising their safety in the railway infrastructure.