Phase protection relays

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Phase protection relays | Choosing the Right Protection Relay
Protection relays have different functions. They are often made up of several modules, each of which performs a specific function. In this guide, we will distinguish three types of functions: protection against abnormal variations in the main supply, protection against leakage currents, and protection against overloads. Protection against abnormal grid variations Abnormal voltage, current, and frequency variations can lead to problematic phenomena. These...
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overload relay
overload relay
MP8000 series

Trigger voltage: 90 V - 690 V

... The MP8000 is an advanced motor protection electronic overload relay that is fully programmable via Bluetooth* using an iPhone* or Android* smartphone or tablet with the Littelfuse App. It is easy to use and arc-flash ...

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Littelfuse
IEC protection relay
IEC protection relay
RED615

... RED615 is a phase-segregated, two-end, line differential protection and control relay for protection, control, measurement and supervision of overhead line and cable feeders in utility ...

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ABB Oy Distribution Automation
differential protection relay
differential protection relay
SIPROTEC 7SD80

... differential protection SIPROTEC 7SD80 for selective line protection of power cables and overhead lines up to 24 km for all kind of starpoint configurations. The implemented phase comparison algorithm ...

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SIEMENS Energy automation and smart grid
voltage protection relay
voltage protection relay
SEL-749M

... and cyclic overload currents. The relay offers all basic motor protection features, including short-circuit, load loss, load jam, and frequent-starting protection as well as imbalance current and phase ...

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Schweitzer Engineering Laboratories
phase protection relay
phase protection relay
INGEPAC EF BD eXtended

...
Protection functions

  • 87B busbar differential unit
  • Supervision / check zone
  • Differential alarm
  • Inrush restraint and inrush stability
  • 50BF breaker failure (phase and
...

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Ingeteam GmbH
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
PR 260

... The PR 260 electric motor protection relay, known as the motor management relay, is designed for motor protection and control, which integrates protection, control, and ...

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Chongqing Blue Jay Technology Co. Ltd
earth-leakage protection relay
earth-leakage protection relay
PR-80L

... energy backup. • Asymmetry, phase fault and phase sequence monitoring. • Adjustable start-up delay, response delay and delay on release. • The protection functions are complete, and each protection ...

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Chongqing Blue Jay Technology Co. Ltd
overload relay
overload relay
GL 200

Tripping current: 60 A - 200 A
Trigger voltage: 24, 115, 230 V

... FANOX integral motor protection relays - gl relay is suitable for 3- phase motors between 60 to 200 A and above. Cable feed is through relay. Its thermal image is reproduced ...

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FANOX ELECTRONIC
overload relay
overload relay
PF-16R

Trigger voltage: 400, 440, 230 V

... 3- phase by COS φ PF-R does not need level sensors to detected dry running. It is designed for use with 3- phase motors from 1 to 630 A and over. It has a cable feed, visual indicator of the tripping cause, adjustable ...

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FANOX ELECTRONIC
phase sequence protection relay
phase sequence protection relay
U3 series

... stages and stage misfortune. Lastly, Model U3S-420 is valid for 400 and 440 nominal V This device is fit to protect three- phase deployments against varieties in primary voltage. Delicate to off base stage arrangement. Material in generators. ...

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FANOX ELECTRONIC
phase loss protection relay
phase loss protection relay
CRV1-31 series

Trigger voltage: 300 V - 500 V

... CRV1-31 relay switches when the voltage of one of the phases exceeds the minimum or maximum thresholds and in case of phase reversal: - Electrical: CRV1-31: for three- phase network ...

over-current protection relay
over-current protection relay
MPR-3M series

Tripping current: 10, 80, 40 A
Trigger voltage: 415, 230 V

... • Monitors: Phase loss, Phase unbalance, Phase sequence, Overload trip current, Under / Over current • Suitable for 1Ø or 3Ø motors. • Accuracy: 5% of set value. • 2 C/O (DPDT) output relay. • ...

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SELEC Controls Pvt. Ltd.
grid and system protection relay
grid and system protection relay
NA003-M64

Trigger voltage: 24, 110 V

... Grid protection monitoring relay RE series; Frequency and voltage monitoring; Grid and system protection; Functionally Safe; Measuring voltage 3 x 400/230V AC; Supply voltage 24V DC, 110-240V AC; 3 CO ...

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TELE Haase Steuergeraete GmbH
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 in demanding ...

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Iskra d.d.
phase loss protection relay
phase loss protection relay
FAZ series

... devices used to prevent the motors from being damaged by overheating due to the lack of phase or voltage imbalance and to prevent the problems that may arise from the phase sequence error. There are different models working ...

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Grup Arge Energy and Control Systems
motor protection relay
motor protection relay
MPR-100

... of additional specific protection functions for motor industrial applications. Its versatility makes it the perfect solution for oil & gas, minery and all heavy-duty environments. Applications Metering & protection ...

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Orion Italia
phase sequence protection relay
phase sequence protection relay
PVR series

Trigger voltage: 150 V - 416 V

... The phase sequence and phase failure protector trip relay is designed to monitor the correct phase rotation or sequence of a three- phase supply system. ...

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Crompton Instruments
phase loss protection relay
phase loss protection relay

... ensuring start-up and cause the system to trip. ENTES Phase Failure (Motor Protection) Relays offer the perfect solution to these defects. They are designed to impart 100% efficient protection ...

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ENTES
three-phase protection relay
three-phase protection relay
LXPRC/S

Trigger voltage: 110, 208, 380, 400, 415 V

... for the output relay to energise, all phases must be present, the phase sequence correct and the phase to phase voltages within the set Under/Over trip levels. If any ...

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Broyce Control
phase unbalance protection relay
phase unbalance protection relay
MS2P49

... sensitive earth fault protection, the MS2P49 relay using solid state techniques, can be applied to detect earth currents down to 0.5% of the CT nominal current. The MS2P49 relay is a phase ...

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Mors Smitt BV
digital protection relay
digital protection relay
DFK-05F

Trigger voltage: 380 V

... Digital Asymmetry Adjutable Phase Failure Relay with 3×3 Digit LED Display Features The phase protection relays are designed to protect the three- phase ...

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Tense Electronic
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 ...

over-voltage protection relay
over-voltage protection relay
SM 500

... Controls, is an under voltage and overvoltage protection relay that functions as a protection against phase loss and phase reversal. This device is capable of being configured ...

phase sequence protection relay
phase sequence protection relay
SFR 2/5

... Modular protection relays | Timers and protection relays Technical Data Compact Size – 1 Module (17,5 mm) Phase sequence and phase ...

phase sequence protection relay
phase sequence protection relay
RZ1FK116

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EMAS
overload relay
overload relay
Ex9RD11.5A0.16

Tripping current: 11.5 A

... Features • Rated current up to 630 A at 600 Vac, 50/60 Hz • Overload protection trip Class 10 A • Phase loss sensitivity • Adjustable current setting for overload protection • Automatic or manual ...

voltage protection relay
voltage protection relay
EPPC02

Tripping current: 10 A
Trigger voltage: 250 V

... Single and three phase protection Phase failure (loss phase) protection Phase sequence protection Adjustable voltage protection Over ...

phase protection relay
phase protection relay
FMFK series

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