Phase relays are protective devices used in electrical power systems to detect and isolate faulty phases. Their primary function is to detect and measure the voltage and current in a power system and compare it to pre-set values, known as trip settings.
When the measured values exceed the trip settings, the phase relay will send a signal to a circuit breaker to disconnect the faulty phase, preventing damage to equipment or harm to personnel.
Single-phase relays are an essential component of many electrical systems and play a critical role in ensuring the safety and reliability of those systems.
Phase relays can be used for a variety of applications, including overcurrent protection, under/overvoltage protection, and phase sequence protection. They are typically used in medium and high voltage power systems, such as those found in substations and industrial plants.
Overall, the function of a phase relay is to provide a fast, reliable means of detecting and isolating faulty phases in an electrical power system, protecting equipment and personnel from potential harm.A single-phase relay is an electrical switch device that is used to protect electrical equipment and circuits in single-phase electrical systems. It works by detecting abnormal conditions, such as overloading or short circuits, and opening or closing the circuit accordingly to protect the system.
Single-phase relays can be used in a variety of applications, including power distribution systems, motor control circuits, lighting systems, and heating and cooling systems. They are typically installed near the equipment or circuit being protected and are connected to sensors or other monitoring devices that detect abnormal conditions.
There are several types of single-phase relays, including electromechanical relays, solid-state relays, and digital relays. Electromechanical relays use an electromagnetic coil to open or close the circuit, while solid-state relays use semiconductors to perform the same function. Digital relays use microprocessors and advanced software algorithms to provide more precise and reliable protection.
GRT508B 100A General Purpose Single Phase Latching Relay
Character:
-100A contact switching capability.
-Only impulse excitation needed, both for single and double coil.
-Low power consumption, small in size.
-Custom assemblies available with flexible wire and/or copper straps, and/or with integrated shunt.
-4KV dielectric strength between coil and contacts
-RoHS compliant
-IEC62055-31 UC2 compliant
-Outline dimensions: (39 x 30 x 16.8)mm
