Differential protection relays

24 companies | 106 products
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differential protection relay
differential protection relay
7SD82/86/87 series

The SIPROTEC 7SD82/86/87 line differential protection have been designed particularly for the selective protection of overhead lines and cables with single-ended and multi-ended infeed ...

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Siemens Energy automation and smart grid
phase protection relay
phase protection relay
RED615 IEC

Line differential protection and control RED615 IEC Compact and versatile solution for utility and industrial power distribution systems RED615 is a phase-segregated, two-end, line differential ...

earth-leakage protection relay
earth-leakage protection relay
X48DB3

The X...DB3 series earth leakage relays Type B are designed to measure the DC, AC and high frequency leakage current. Thanks to their distinctive feature (the displaying of the leakage current) it is possible to continuously ...

earth-leakage protection relay
earth-leakage protection relay
X72DB3

The X...DB3 series earth leakage relays Type B are designed to measure the DC, AC and high frequency leakage current. Thanks to their distinctive feature (the displaying of the leakage current) it is possible to continuously ...

earth-leakage protection relay
earth-leakage protection relay
X52DS

... 0,2÷5s • One or two operating trip relays. • Output relays test. • Manual (local or remote) or programmable automatic reset. • Continuous control of wiring connection between the relay ...

earth-leakage protection relay
earth-leakage protection relay
RG1M series

WG series electronic differential protection relay for connection to external WG / WGS / WGC series toroidal transformers These are highly reliable electronic relays ...

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, ...

earth-leakage protection relay
earth-leakage protection relay
DER3BDUAL/2I

Tripping current: 0.06 A - 7 A

DER3B DUAL – UNIVERSAL relay type B. Dossena presents the new DER3B DUAL series, the new generation of earth differential relays. The earth differential relays ...

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DOSSENA
earth-leakage protection relay
earth-leakage protection relay
DER3BDUAL/6D

Tripping current: 0.06 A - 7 A

DER3B DUAL – UNIVERSAL relay type B. Dossena presents the new DER3B DUAL series, the new generation of earth differential relays. The earth differential relays ...

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DOSSENA
current protection relay
current protection relay
DER3/0D

Tripping current: 0.03 mA - 30,000 mA

The earth differential relays range DER3, can be used on LV networks in alternate current, type TT and TN. They guarantee an adequate selectivity of differential protection ...

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DOSSENA
power protection relay
power protection relay
ELR-1D

Trigger voltage: 24, 48, 110, 230 V

• Earth leakage relay type A • External toroidal • Green power LED indicator (ON) • Red relay tripped LED indicator (TRIP) • Front TEST and RESET buttons • Modular DIN housing, 1 module, with transparent ...

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Contrel elettronica
current protection relay
current protection relay
ELR-3A

Trigger voltage: 24 V - 230 V

... delay time. Residual current protection relay with external CT. 2 operation threshold. Adjustable tripping and delay time. Introduction Range ELR Product name ELR-3A Product type Residual current ...

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Contrel elettronica
current protection relay
current protection relay
ELR-3B

Trigger voltage: 230 V

... earth-leakage time delay adjustment 0.1, 0.2, 0.3, 0.4, 0.5, 0.75, 1, 5, 10 s Protection AC type protection Type A protection Type B protection Test function Local Remote Output ...

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Contrel elettronica
earth-leakage protection relay
earth-leakage protection relay
AQ-T216

AQ-T216 is a transformer protection IED with sophisticated and easy to use differential protection function. The AQ-T216 transformer protection IED provides for both ...

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Arcteq Relays Ltd
trip circuit protection relay
trip circuit protection relay
HR series

Tripping current: 8 A
Trigger voltage: 230 V

thermal protection relay
thermal protection relay
FPC 400

Tripping current: 1,000, 5 mA

FPC 400 is a family of current and 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 ...

DIN rail protection relay
DIN rail protection relay
Delta D2-L

... Instantaneous (t = 0) at lAn 30mA Selectable set point 30mA...30A (19 ranges) Field-selectable negative or positive security (fail safe) Automatic permanent test Manual or automatic reset (3 restart attempts)

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IME Spa
phase protection relay
phase protection relay
DPT-B

This digital relay renders optimal differential three phase protection functions that are needed for power transformers. This relay comes in varying DTP models that are ...

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GE Grid Solutions
under-voltage protection relay
under-voltage protection relay
PVK series

Trigger voltage: 100 V - 480 V

... set point level Umin, the protector will trip and the red LED will illuminate to indicate the fault condition. During the time delay period the red LED will flash for the set time (t) before the relay ...

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Crompton Instruments
over-current protection relay
over-current protection relay
SEL-311L

... -311L Line Current Differential Relay with integral four zone distance backup for easy-to-apply, high-speed line protection. Apply subcycle current differential protection ...

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Schweitzer Engineering Laboratories
earth-leakage protection relay
earth-leakage protection relay
RESYS M40

Tripping current: 0.03 A - 30 A

The Resys M40 is a type A differential relay manufactured by Socomec. Integrated with a remote trip breaking device, it provides an indirect contact protection and a leakage current limitation. ...

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SOCOMEC
distance protection relay
distance protection relay
PCS-931

The PCS-931 relay provides full-scheme current differential and distance protection solutions for transmission lines with high- speed sub-cycle distance element. As well, the pilot scheme ...

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NR Electric
earth-leakage protection relay
earth-leakage protection relay
RD-1

The Earth Leakage Relay RD is a microprocessor-based electronic protection device designed to recognize low-level leakage or unbalanced currents, due to insulation loss on conductors or equipment to be ...

phase protection relay
phase protection relay
MS2V73

High speed differential protection for various items of power system plant including generators, busbars, motors & the individual windings of power transformers and for restricted earth fault applications. The ...

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Mors Smitt BV
current protection relay
current protection relay
B-PRO Bus Protection Relays

... 4000 Bus Protection Relay Simple bus applications with up to 6 feeders and 2 differential zones with breaker failure, or 4 feeders and 1 transformer, including separate full transformer ...

over-current protection relay
over-current protection relay
SKC series

The differential current relays type SKC is intended for the protection of generators, large motors, two winding power transformers and short lines. The following functions are provided: thermal ...

phase protection relay
phase protection relay
KCC101x series

Trigger voltage: 100 V - 480 V

KCC101x Series KCC101x - SINGLE PHASE OVERCURRENT GUARD Single Phase Overcurrent Protection with Definite Time Trip Delay Two individually setable overcurrent relays For ...

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Meagacon AS
over-current protection relay
over-current protection relay
VAMP 52

... and Motor Protection Relay Key Features: Multifunctional yet user-friendly Extensive thermal protection functions optimal for low and medium-sized asynchronous motors Directional earth ...

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Vamp
current protection relay
current protection relay
MDR-2

The MDR-2 is a differential current relay intended for protection of a generator against internal short circuits (leaking currents). It is based on a 16-bit digital signal processor providing ...

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DEIF
voltage protection relay
voltage protection relay
ETCPU 200

-DC Switchgear Protection Relay -Protection, Control, Monitoring, Metering, Data Logging, PLC, Communication -di/dt, delta I, delta VI, 76D, 32, 80 45 Differential ...

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ENTEC ELECTRIC & ELECTRONIC CO.,LTD
phase protection relay
phase protection relay
MRDT4

earth-leakage protection relay
earth-leakage protection relay
MCDTV4

differential protection relay
differential protection relay
MCDGV 4