ABB Supervision Relay Suppliers
ABB UVT92M Supervision Relays – Fuse Failure Relays are high-speed static relays intended for continuous monitoring of fuses against blowing out and inadvertent removals. These relays can be used for one, two and all three-phase fuse failure detection. The plug-in socket-type design for terminals provides ease of installation and maintenance.
UVT92M Fuse Failure Relay Features
- Fast operation
- 1, 2 and 3 phase fuse fail detection
- No continuous drain on D.C. auxiliary supply
- Hand reset LED operation indication
- Sensitivity down to 2.5VA load on secondary
Application Of UVT92M Fuse Failure Relay
The fuse failure relays are built for continuous monitoring of fuses against blowing out and inadvertent removals. In applications where failure and inadvertent removal of fuse may cause incorrect tripping. The relays can also be used for supervision of potential transformer fuses to provide blocking signals to voltage-operated protection schemes like distance protection, under impedance & under voltage relays. It can also be used for the alarming purpose of synchronizing circuits.
Design And Principle Of Operation
The fuse failure relays are high-speed static relays with built-in electro-mechanical output relays providing 2 change-over signalling duty contacts. The relays can operate for single, two & three-phase fuse failure in the secondary circuits. During normal operations, the potential across the fuses is nearly zero. When a fuse failure occurs in any of the phases the potential across the particular fuse goes up. This potential drives the circuit path for external LED indication & relay output.
The fuse failure in any phase is indicated by the ‘Trip’ LED and will remain latched until the reset push button is pressed and the fuse is healthy. After replacing these faulty fuses, the output contacts can be reset. The plug-in socket design for terminals enables ease of installation and also maintenance. The relays are suitable for flush mounting on the panel and are sufficiently protected against any ingress. A unique Plug-in PCBA assembly & sheet metal case makes the relay robust & lightweight.
ABB Supervision Relay Suppliers
The supervision relays type TCS are intended for continuous supervision of circuit breaker trip circuit & gives alarm for loss of auxiliary supply, faults on the trip coil and its wires independent of the breaker position, any faults on the breaker auxiliary contacts as well as faults in the supervision relay. The trip circuit supervision is a crucial requirement as its failure can cause a disconnect of possible network faults & eventually have to be removed by another upstream protection. In normal conditions, the indicator LED glows green & output relays are in picked-up condition. In the event of any fault, the supervision relays operate (drops-off) after a delay of 0.6 sec & the indicator LED turns red.
MAIN BENEFITS
- Highly reliable
- Personnel as well as power system safety
- Easy site installation
MAIN FEATURES
- Constant Supervision Of the Trip Circuit Independent Of The Circuit Breaker Position
- Galvanic isolation between auxiliary supply as well as supervision circuit
- Delayed operation to evade spurious signals during circuit breaker operation
- Enables use in sensitive and also in high-resistance circuits
- Extremely low burden on the auxiliary source
- Complete range of rated voltages either for AC or DC
We have all types of equipment to protect and boost your electric power system. Grab the portfolio to explore our ABB Auxiliary Relays which will help in improving your business. We Digital & Smart Grid Enterprises are the leading ABB Supervision Relay Suppliers and Exporters in Maharashtra. We also deliver a wide range of services & customized solutions for many leading Industries & Panel Builders. You can contact us at +91 7021624024 or mail us at markeing@dsgenterprises.in. We also deal in a broad range of products in ABB Relay. Please click here if you would like to know more about ABB Auxiliary Relays.
