
Allicdata Part #: | 777-HVR-LR-P2-ND |
Manufacturer Part#: |
777-HVR-LR-P2 |
Price: | $ 346.35 |
Product Category: | Industrial Controls |
Manufacturer: | Littelfuse Inc. |
Short Description: | 3-PH OLR/340-480V/ 1-9FLA/ |
More Detail: | N/A |
DataSheet: | ![]() |
Quantity: | 1000 |
1 +: | $ 314.85500 |
Series: | * |
Part Status: | Active |
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Protection systems are designed to detect and prevent any disruptions, faults, overloads or overvoltages that could damage electrical systems or endanger lives. The 777-HVR-LR-P2 is a protection system developed for use in transmission and distribution networks, and it is used to detect fault currents and trip connected circuit breakers in order to protect downstream components. In this article, we’ll look at the 777-HVR-LR-P2 application field and working principle.
Application Field of 777-HVR-LR-P2
The 777-HVR-LR-P2 is a protection system designed to detect and prevent faults in transmission and distribution networks. It is used to detect fault currents and trip connected circuit breakers in order to protect downstream components. The system is a three-stage, self-powered EPM (Electronic Protection Module) with both short-circuit and overloading protection. It is designed for use in utility networks, where it will provide protection from common fault currents of up to 5kA.
The 777-HVR-LR-P2 is suitable for applications such as:
- Protection of utility distribution networks
- Protection of transmission substations
- Power factor correction
- Diagnostic protection
- Protection of motor control circuits
- Undervoltage protection
Working Principle
The 777-HVR-LR-P2 protection system monitors current and short-circuit levels within a circuit breaker and detects any sudden changes in current. In the event of a fault, it will then trip the circuit breaker to protect downstream components. The system consists of two parts: a current monitor and a trip unit. The current monitor processes the current through the system and detects any overcurrent faults or short-circuit currents. The trip unit then trips the circuit breaker in the event of a fault.
The system also has an overloading protection feature, which ensures that the circuit breaker does not trip due to an overload. The system monitors the current flowing through the circuit breaker, and if it exceeds the overload limit, it will trip the circuit breaker. This helps to protect the circuits and components from excessive current, which can cause damage. Finally, the system also provides diagnostic protection, which helps to identify any problems within the system.
Conclusion
In conclusion, the 777-HVR-LR-P2 is a three-stage, self-powered EPM (Electronic Protection Module) with short-circuit and overloading protection. It is designed for use in utility networks, where it will provide protection from common fault currents of up to 5kA. The system monitors the current through the system and trips the circuit breaker in the event of a fault, providing protection from sudden changes in current. It also has an overloading protection feature, which prevents the circuit breaker from tripping due to an overload, and provides diagnostic protection. As such, the system provides a comprehensive level of protection for transmission and distribution networks.
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