Electric Relays and Protection Relays by Application
A feeder protection relay is essential for safeguarding electrical feeders against faults like overloads, short circuits, and earth faults. Without it, faults can damage equipment, disrupt power supply, and increase downtime. The relay detects abnormal conditions, isolates faulty sections, and ensures continuity of service while enhancing system stability. Its scope extends across industrial plants, utilities, and commercial facilities where reliable feeder protection is critical. Schneider Electric’s feeder protection relays combine advanced features such as real-time monitoring, fault detection, event recording, and communication protocols for seamless integration into modern power networks. With proven technology and global expertise, Schneider Electric delivers feeder protection relay solutions that improve safety, optimize asset performance, and ensure operational efficiency across diverse applications.
Overcurrent protection can be utilized for primary protection, and even as a backup in the cases of earth fault protection and phase overcurrent. Definite time, Instantaneous, directional, IDMT, and non-directional are types of overcurrent characteristics regularly employed in protection from elementary to advanced feeder applications. These types of electric relays are available across basic devices, to intricate numerical devices with IEC 61850 cybersecurity and communication.
PowerLogic™ P5
Withdrawable protection relays for demanding applications Medium Voltage protection relays with a focus on safety and cyber security. Easy to use for Panel builders, System Integrators and End Users. From overcurrent to differential protection with arc flash protection, redundant Ethernet communication and IEC 61850
Part of PowerLogic™ 
Arc flash protection electric relays are used to detect electrical arcs in MV and LV equipment. They are exclusively designed to instantaneously isolate power to limit arc energy and minimize overall risks. The ultra-fast leading Vamp arc protection solutions are available in a flexible range, from stand-alone devices through to complex schemes or embedded protection relays, all with the latest connectivity, including IEC 61850, PRP, redundant Ethernet communications and cybersecurity features.
PowerLogic™ P5
Withdrawable protection relays for demanding applications Medium Voltage protection relays with a focus on safety and cyber security. Easy to use for Panel builders, System Integrators and End Users. From overcurrent to differential protection with arc flash protection, redundant Ethernet communication and IEC 61850
Part of PowerLogic™ 
What is the motor protection?
Schneider Electric’s motor protection solutions prevent damage from electrical faults, overloads, and harsh operating conditions. By detecting abnormalities and disconnecting power, they ensure safe, efficient motor operation while minimizing downtime.
Our advanced technologies protect against overheating, phase loss, and short circuits, extending equipment lifespan and optimizing performance.
- Manufacturing: Protects motors, driving conveyors, machine tools, and assembly lines.
- Oil & Gas: Ensures safe operation of pumps for extraction and transportation.
- Water & Wastewater: Safeguards motors in pumps and treatment equipment.
Motor Protection Benefits
- Extends Motor Lifespan: By preventing damage, motors last longer and require fewer replacements.
- Improves Safety: Protects personnel from electrical hazards caused by motor failures.
- Reduces Downtime: Prevents unexpected motor breakdowns and keeps operations running smoothly.
PowerLogic™ P5
Withdrawable protection relays for demanding applications Medium Voltage protection relays with a focus on safety and cyber security. Easy to use for Panel builders, System Integrators and End Users. From overcurrent to differential protection with arc flash protection, redundant Ethernet communication and IEC 61850
Part of PowerLogic™ 
As transformers are expensive yet essential elements in power systems, protection schemes should be curated to detect and solve any unprecedented conditions quickly. In our advanced transformer protection and control devices, Schneider Electric India implements the best techniques such as multiple winding differentials, REF and thermal algorithms, and collect service data to aid the scheduling of preventive maintenance. Supply causes, lightening over voltages, switching over voltages, are some of the many factors that pose threat to transformers. Further, the result of any overload is the increased temperature of the transformer's oil and windings, which severely impacts its longevity. In order to safeguard of a transformer against overloads, several industrial sectors deploy a special kind of electric relay called thermal overload relay. This kind of protection mirrors the temperature of the transformer's convolutions, and the resemblance is based on the measure of the current and the transformer's constant thermal time. Some relays can eliminate the effect of harmonics of the current resulting from non-linear loads such as rectifiers, computers, variable speed drives, etc. This kind of relay can also evaluate the outstanding time before the release of the tripping order and the time-lapse before re-energizing the transformer.
PowerLogic™ P5
Withdrawable protection relays for demanding applications Medium Voltage protection relays with a focus on safety and cyber security. Easy to use for Panel builders, System Integrators and End Users. From overcurrent to differential protection with arc flash protection, redundant Ethernet communication and IEC 61850
Part of PowerLogic™ Capacitor banks provide essential functionality to help maintain the quality, or power factor of virtually any electrical distribution system. Due to the varied nature, our protection devices are a perfect fit, offering flexibility to adapt to any MV application. All our devices are coupled with the latest connectivity including IEC 61850, PRP, redundant Ethernet communications and cybersecurity features.
PowerLogic™ P5
Withdrawable protection relays for demanding applications Medium Voltage protection relays with a focus on safety and cyber security. Easy to use for Panel builders, System Integrators and End Users. From overcurrent to differential protection with arc flash protection, redundant Ethernet communication and IEC 61850
Part of PowerLogic™ Whether for small, medium or large generators, find devices with dedicated functionality to provide reliable protection of generators and rotating machines. A flexible and scalable range of devices for any generation application; with the latest connectivity including IEC 61850, PRP, redundant Ethernet communications and cybersecurity features.
Differential protection is one of the most critical protection relays in a power system. It's used to safeguard electrical equipment from internal faults such as internal winding short circuits and short circuits, among others.
Phase comparison relaying is a differential relaying that examines the phase angles of current flow entering one transmission line terminal to the phase angles of current flow entering all the line's remote terminals.
PowerLogic™ P5
Withdrawable protection relays for demanding applications Medium Voltage protection relays with a focus on safety and cyber security. Easy to use for Panel builders, System Integrators and End Users. From overcurrent to differential protection with arc flash protection, redundant Ethernet communication and IEC 61850
Part of PowerLogic™ What is Distance Protection Relay?
A distance protection relay is used to trip a circuit breaker during overloads or faults, and in low-rating circuits, it can trip on its own. Common in high-voltage AC transmission and distribution lines, it has replaced overcurrent protection as it acts faster, requires no readjustment, supports higher loading, and is less impacted by generation levels.
Schneider Electric India offers advanced distance protection relays like MiCOM P43x, Easergy P3, and MiCOM P44x. These combine proven performance with algorithms such as quadrilateral, polygon, or mho, ensuring robust fault detection. With subcycle operation, they provide IEC 61850 connectivity, redundant Ethernet, PRP, and cybersecurity. By measuring the ratio of current and voltage, a distance protection relay detects and isolates faulty components, locates faults along transmission lines, and safeguards overall system stability.
A distance protection relay is used to trip a circuit breaker during overloads or faults, and in low-rating circuits, it can trip on its own. Common in high-voltage AC transmission and distribution lines, it has replaced overcurrent protection as it acts faster, requires no readjustment, supports higher loading, and is less impacted by generation levels.
Schneider Electric India offers advanced distance protection relays like MiCOM P43x, Easergy P3, and MiCOM P44x. These combine proven performance with algorithms such as quadrilateral, polygon, or mho, ensuring robust fault detection. With subcycle operation, they provide IEC 61850 connectivity, redundant Ethernet, PRP, and cybersecurity. By measuring the ratio of current and voltage, a distance protection relay detects and isolates faulty components, locates faults along transmission lines, and safeguards overall system stability.
Solutions for busbar differential protection need to be flexible and high performance to protect your valuable assets. Our solutions include high impedance differential and numerical protection schemes that offer security, sensitivity and performance in a wide range of busbar configurations. Choose from centralized or distributed schemes to allow flexibility and meet your application needs.
Autoreclose and check synchronism protection devices are designed for systems where temporary or transient faults may occur frequently. Without need for other protection functions, they can be applied as stand-alone or multi-function devices in dedicated schemes, from simple to complex reclosing applications in dual circuit breaker or breaker and a half bus or mesh systems.
PowerLogic™ P5
Withdrawable protection relays for demanding applications Medium Voltage protection relays with a focus on safety and cyber security. Easy to use for Panel builders, System Integrators and End Users. From overcurrent to differential protection with arc flash protection, redundant Ethernet communication and IEC 61850
Part of PowerLogic™ 
Our voltage and frequency protection devices are capable of highly versatile applications that can easily integrate into new and existing power distribution systems. With focus on detecting faults based on voltage or frequency measurements, users get a cost-effective solution that can also detect issues relating to power quality or instability.
PowerLogic™ P5
Withdrawable protection relays for demanding applications Medium Voltage protection relays with a focus on safety and cyber security. Easy to use for Panel builders, System Integrators and End Users. From overcurrent to differential protection with arc flash protection, redundant Ethernet communication and IEC 61850
Part of PowerLogic™ If you are searching for reliable distance protection for cables and lines, look no further. Our advanced distance protection relays offer field-proven experience with sophisticated algorithms and protection characteristics such as quadrilateral, polygon or mho, which are well known for their high performance in complex applications. With subcycle operation, they offer the latest connectivity with IEC 61850, PRP, redundant Ethernet communications and cybersecurity features.
PowerLogic™ P5
Withdrawable protection relays for demanding applications Medium Voltage protection relays with a focus on safety and cyber security. Easy to use for Panel builders, System Integrators and End Users. From overcurrent to differential protection with arc flash protection, redundant Ethernet communication and IEC 61850
Part of PowerLogic™ Interconnection protection relays are special type of electric relays that are designed for cost-effective, highly reliable protection of rotating machines. Within the same device, dynamic line rating (DLR) functionality can be used to also optimize line capacity (up to 50%) based on weather conditions, enabling more wind, solar or distributed generation (DG) to be connected to the grid.
Our marine protection relays use products conforming to all of the necessary standards for marine certification, while offering all of the main features of our common ranges from our wide protection relay portfolio. That means that you get all of the standard functionality, combined with the approvals needed in marine power applications.
PowerLogic™ P5
Withdrawable protection relays for demanding applications Medium Voltage protection relays with a focus on safety and cyber security. Easy to use for Panel builders, System Integrators and End Users. From overcurrent to differential protection with arc flash protection, redundant Ethernet communication and IEC 61850
Part of PowerLogic™ IEC 61850, an international standard defining communication protocols, is applied in modern protection relays, RTUs, and substation automation schemes. This allows for the implementation of distributed and multi-vendor applications inside electrical substations and part of Smart Grid architectures worldwide.
We offer a range of protection electric relays dedicated to railway applications for catenary, feeders and transformer applications. Offering high performance with field-proven experience for efficient protection of supplies and catenaries in a wide range of railway specific applications including autotransformer-fed (AT) systems.
