Digital protection relays

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Digital protection relays | Choosing the Right Protection Relay
Protection relays can be divided into two main categories: digital relays and electromechanical relays. Digital protection relays Digital protection relays, also known simply as "digital relays", are made up of an electronic system with microprocessors. These microprocessors make it possible to analyze various grid parameters, such as voltage, intensity, or current to detect faults in an industrial control system. Thanks to microprocessors, these relays can...
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earth-leakage protection relay
earth-leakage protection relay
EL731 series

Trigger voltage: 120, 240, 24, 48 V

... The EL731 series relay operates on ac resistance-grounded systems and dc grounded systems. This unit is a microprocessor-based ac, dc, sensitive, earth-leakage relay that offers complete coverage for all frequencies from ...

power protection relay
power protection relay
REB611

... Scope • Busbar and ideal multipurpose backup protection relay Product benefits • Preconfigured functions for busbar protection application • The relays are delivered preconfigured ...

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ABB Oy Distribution Automation
distance protection relay
distance protection relay
SIPROTEC 7SA82

... independent measuring loops (6-system distance protection) •Several distance- protection functions can be selected: Classic, reactance method (RMD), impedance protection for transformers •Directional ...

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SIEMENS Energy automation and smart grid
over-current protection relay
over-current protection relay
SEL-311L

... Line Current Differential Relay with integral four zone distance backup for easy-to-apply, high-speed line protection. Apply subcycle current differential protection with included four zone distance ...

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Schweitzer Engineering Laboratories
over-current protection relay
over-current protection relay
CGI 14N/C

... CGI 14N/C is a numerical over current and earth fault relay, entirely digitized and integrated with microprocessor technology. This allows for analog to digital conversion of the valves and then their ...

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CG Power Systems
earth-leakage protection relay
earth-leakage protection relay
CBS4 series

Tripping current: 0.03 A - 30 A

... Unit equivalent to 4 earth leakage protection networks. 4 independent programmable relays available Four inputs to connect the external toroidal transformers of the WG Superimmunized Type A relay with ...

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CIRCUTOR
earth-leakage protection relay
earth-leakage protection relay
RGU-10 series

Tripping current: 0.03 A - 30 A
Trigger voltage: 230 V

... Electronic earth leakage protection relay, used to connect to the earth leakage transformers WG / WGC Series Superimmunized Type A relay with high frequency current filtering and high ...

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CIRCUTOR
earth-leakage protection relay
earth-leakage protection relay
WRU10 series

Trigger voltage: 110, 230 V

... differential protection settings. protection trigger current. protection status messages, etc. Units with three programmable output contact relays, one switched and two simple. The ...

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CIRCUTOR
feeder protection relay
feeder protection relay
SIR-A

Tripping current: 1 A - 5 A
Trigger voltage: 24 V - 230 V

... SIR-A Overhead Control / RTU & Feeder Protection The Fanox SIR-A is the Relay that offers the complete solution for Recloser Control and Feeder Protection with current, voltage, and frequency. 4 ...

over-voltage protection relay
over-voltage protection relay
SIU-C

Trigger voltage: 24 V - 230 V

... SIU-C represents the best and most precise protection solution for transformers and electrical machines in high, medium, and low-voltage distribution systems. The SIU-C is a voltage and frequency protection relay ...

over-voltage protection relay
over-voltage protection relay
SIL-C

Trigger voltage: 24 V - 230 V

... SIL-C FEEDER & GENERATOR PROTECTION RELAY High Accuracy and Reliability in a compact device The SIL-C Relay protects Feeders and Equipment and includes comprehensive current, voltage, and frequency ...

arc flash protection relay
arc flash protection relay
AFR-4

Trigger voltage: 85 V - 265 V

... detection relay is a versatile and independently operating device for bay based protection. It supports 4-channels arc signal detection and can configuration multiple arc tripping modes, ensuring accurate and fast fault ...

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Chongqing Blue Jay Technology Co. Ltd
arc flash protection relay
arc flash protection relay
AFR-M series

Tripping current: 5 A
Trigger voltage: 220 V

... detection, the AFR-M offers exceptional protection capabilities, helping to minimize arc flash damage for personnel and equipment. High-Speed Tripping for arc flash protection The AFR-M arc flash protection ...

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Chongqing Blue Jay Technology Co. Ltd
under-voltage protection relay
under-voltage protection relay
PR 240

Tripping current: 5 A
Trigger voltage: 250 V

... intelligent motor protection relay provides comprehensive protective, monitoring, and control functions for low-voltage motor protection. Feature of PR240 intelligent motor management relay • ...

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Chongqing Blue Jay Technology Co. Ltd
earth-leakage protection relay
earth-leakage protection relay
ELR-3A

Trigger voltage: 24 V - 230 V

... Earth-leakage protection class Typo A Test function Local Remote test Output relays 2 changeovers (TRIP, ALARM) 5 A (240 VAC) Configurable normally de-energised or energised Display indications Green LED ...

earth-leakage protection relay
earth-leakage protection relay
ELR-8V series

Tripping current: 0.03 A - 30 A

... Earth leakage relay with 2 operation thresholds, flush mount. External CT. Fault current measurement. Digital display. Fail safe. Flag indicator. • Earth leakage relay type A • 2 output relays ...

earth-leakage protection relay
earth-leakage protection relay
ELR-3BN

Trigger voltage: 230 V

... 10 s Protection AC type protection Type A protection Type B protection Test function Local Remote Output relays 2 (TRIP, Prealarm) 10 A (250 VAC) Configurable ...

earth-leakage protection relay
earth-leakage protection relay
DER4B/2D

Tripping current: 0.03 A - 30 A
Trigger voltage: 48 V - 400 V

... Din modules Dossena presents the DER4B range, the new generation of type B differential toroid relays. DER4B is recommended for electrical protection in the tertiary sector, where devices that generate alternating, ...

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DOSSENA
earth-leakage protection relay
earth-leakage protection relay
DER4B/2I

Tripping current: 0.03 A - 30 A
Trigger voltage: 48 V - 400 V

... Recessed 96x96mm Dossena presents the DER3B range, the new generation of type B differential toroid relays. DER3B is recommended for electrical protection in the tertiary sector, where devices that generate alternating, ...

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DOSSENA
earth-leakage protection relay
earth-leakage protection relay
DER4/1D

Tripping current: 0.03 A - 30 A
Trigger voltage: 48 V - 400 V

... The residual current relays of the DER4 Dossena range can be used on LV networks in alternating current of the TT and TN type. They make it possible to achieve adequate selectivity and differential protection thanks ...

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DOSSENA
earth-leakage protection relay
earth-leakage protection relay
FPC 200

Tripping current: 0.3 A - 30 A

... FPC 200 is a family of current or voltage digital protection relays with easy to use interface meant for variety of solutions in industry and power distribution. Its robust design enables it to be placed ...

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Iskra d.d.
arc flash protection relay
arc flash protection relay
VAMP 321

... Programmable operation zones Communication protocol support for SCADA and automation interfacing Supports maximum 6 Digital Inputs and 8 Digital Outputs for object (CB) status and control (order option dependent) ...

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Vamp
feeder protection relay
feeder protection relay
PAS900 series

... circuit protection, inlet wire auto-input protection, capacitor proteciton, distribution transformer proteciton, motor differential protection, motor comprehensive protection and voltage ...

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Hangzhou Huning Elevator Parts Co., Ltd.
overload relay
overload relay
LC 200

Tripping current: 0.5 A
Trigger voltage: 24 V

... The LC 200 accessories electronic overload guard features a power supply that ranges from 12 to 24V AC or DC. It consists of a red LED six-digit display placed on the top of the device. It mounts on a DIN rail and uses ...

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Pavone sistemi
over-voltage protection relay
over-voltage protection relay
900VPR-BL-U-CE

Tripping current: 3, 5 A
Trigger voltage: 50 V - 500 V

... • 3 phase RMS voltage protection relay • Monitors: Over / Under Voltage, Over / Under Frequency, Phase asymmetry, Phase failure, Phase sequence & Neutral loss • Accuracy: ± 1% of Voltage, ± 0.3Hz • Measuring range ...

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SELEC Controls Pvt. Ltd.
motor protection relay
motor protection relay
RX series

Tripping current: 1 A - 2,000 A
Trigger voltage: 0 V - 600 V

... RX Motor Protection Relay Take your motor protection to a new level. The RX Series provides more than just solid state overload or power protection relays. By using ...

voltage protection relay
voltage protection relay
RM3C

... Direct and pulsanting voltage or current relay Wall mounting Bidirectional direct or pusating voltage or current relay 2 Min. and / or Max. programmable alarms Input voltage 50mV... 200mV Input current 1...20mA Programmable ...

power protection relay
power protection relay
DMP300

Tripping current: 1, 2, 5 A
Trigger voltage: 110, 220 V

... strong an-jamming design that suitable for severe environment. The measurement, protection AI isolation sampling channels are fully independent. The specialized analog and digital filtering design and high-accuracy AC ...

DC protection relay
DC protection relay

Trigger voltage: 20 V - 30 V

... Process relay v/i. Digital setpoint with numerical preselectors Input: 0-4/20mA, 0/10V Isolated output: MAX/MIN 1 switched relay (1 preselectable numerical alarm) Power ...

voltage protection relay
voltage protection relay
MSAR5

... application of digital techniques to protection relay technology. The requirement for highly reliable control relay elements does however remain and often constitutes a significant cost ...

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Mors Smitt BV
over-current protection relay
over-current protection relay
XMR-A

... fault recording • 64 sample for cycle measurement for accuracy of protection element COMMUNICATION SECURITY Communication Security through redundancy protocol and Cyber Security ...

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THYTRONIC
digital protection relay
digital protection relay
FKD-01F

Trigger voltage: 380 V

... Digital Phase Failure Relay with 3×3 Digit LED Display Features The phase protection relays are designed to protect the three-phase loads from damage caused by mains ...

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Tense Electronic
level protection relay
level protection relay
MC Line

... DIGITAL RELAYS FOR PROTECTION, MONITORING AND CONTROL The MC line has been designed to offer to the market a very competitive protective relay responding to the latest ...

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Microelettrica
phase protection relay
phase protection relay
Polarr

... the use of CTs. The unit is placed in the GVR and carry out auto-reclosing over current. It provides sensitive earth fault protection. The Polarr series is integrated with low power microprocessor design. The structure features various ...

over-current protection relay
over-current protection relay
IPR-A

... circuit Features - CT primary ratio selectable in 5 A steps (10 A to 6000 A) - Line and ground RMS currents measurement - 1 trip relay and 2 programmable auxiliary relay - Control power drop or ...

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Orion Italia
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