Frequency protection relays

24 companies | 71 products
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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 ...

under-current protection relay
under-current protection relay
FPC 200, Protection relay

Tripping current: 0.3 A - 30 A

... and prepared software for 4 main protection groups as feeder protection, transformer protection, motor protection and busbar protection. Every groupd ...

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Iskra d.d.
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. ...

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 ...

voltage protection relay
voltage protection relay
SIR-A

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

The Fanox SIR-A is the relay that offers a complete solution for Recloser Control and Feeder Protection with current, voltage, and frequency functions for primary and secondary distribution. It ...

voltage protection relay
voltage protection relay
SIL-V Voltage & Frequency Protection Relay

SIL-V VOLTAGE & FREQUENCY PROTECTION RELAYS The SIL-V is a voltage and frequency protection relay and represents the best and precise ...

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 voltage and/or low voltage protection Contact ...

over-voltage protection relay
over-voltage protection relay
PCS-985TI

... Current differential protection (87T) • Transformer restricted earth fault protection (64REF) • Negative-sequence Overcurrent protection (50/51Q) • Overexcitation ...

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NR Electric
over-voltage protection relay
over-voltage protection relay
PCS-9611S

... -stage phase overcurrent protection (50/51P, 67P) • Zero sequence overcurrent protection (50/51G, 67G) • Sensitive earth fault protection (51SEF, 67SEF) • ...

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NR Electric
overload relay
overload relay
PCS-9691

... directional phase overcurrent protection (67P) • Six-stage neutral/ground overcurrent protection(50/51N, 50/51G) • Four-stage directional neutral/ground overcurrent ...

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NR Electric
motor protection relay
motor protection relay
MPR-100

Motor Protection Relay The device has been designed for continuous monitoring of electrical parameters in low voltage systems. It allows direct, close-distance or remote monitoring via RS-485 and bluetooth ...

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Orion Italia
over-voltage protection relay
over-voltage protection relay
VPR-A

Tripping current: 0 A - 0 A
Trigger voltage: 0 kV

The Voltage Protection Relay (VPR-A) has been designed to measure the line or phase RMS voltages under normal conditions or under disturbances. This information is internally processed by the microprocessor, ...

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Orion Italia
frequency protection relay
frequency protection relay
VFR-100X

... - Voltage THD - Voltage Harmonics - Frequency (Hz) - Frequency variation (negative rate of change df/dt) Signalling - Graphic LCD & LED based HMI - Indication of fault conditions - Indication ...

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Orion Italia
earth-leakage protection relay
earth-leakage protection relay
SIPROTEC 7UM6 series

The SIPROTEC 7UM6 protection relays have been specially developed and designed for the protection of generators of all sizes and synchronous and asynchronous motors. With the high-performance ...

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Siemens Energy automation and smart grid
current protection relay
current protection relay
DGP

... of protection, monitoring, control and recording functions for AC generators. It can be used on generators driven by steam, gas and hydraulic turbine. Any size of generator can be protected with the DGP. A high degree ...

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GE Grid Solutions
earth-leakage protection relay
earth-leakage protection relay
REF601

Trigger voltage: 24 V - 265 V

Feeder protection REF601 Entry-level numerical relay for distribution networks REF601 is a dedicated feeder protection and control relay intended for the protection ...

over-voltage protection relay
over-voltage protection relay
SEL-787-3E/-3S/-4X

Transformer Protection Relay Protect and monitor most three- and four-winding transformers and terminals with the versatile SEL-787 Transformer Protection Relay platform. ...

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Schweitzer Engineering Laboratories
over-voltage protection relay
over-voltage protection relay
900VPR-2

Trigger voltage: 280 V - 520 V

3Ø-Digital Voltage Protection Relay, Self Powered [900VPR-2-280/520V] Measuring Parameter Under Voltage, Over Voltage, Under Frequency, Over Frequency, Phase Asymmetry, ...

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SELEC Controls Pvt. Ltd.
under-frequency protection relay
under-frequency protection relay
20-050-2X

Tripping current: 5 A
Trigger voltage: 120 V

The 20-050-2X is a sensor and protective relay that is ideally used in an AC actuating system. It has an input voltage of 120 VAC and an over or underfrequency protection function.

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TE Relays, Contactors & Switches
under-frequency protection relay
under-frequency protection relay
PHD series

Trigger voltage: 87 V - 550 V

... normal conditions, with the supply frequency close to the nominal set point, both red LEDs are off with the Under relay energised and the Over relay de-energised. Should the supply fall ...

frequency protection relay
frequency protection relay
170 - 1 000 Hz | NS40A

... Proven Power has NS40A Audio Tone Frequency Shift Keyed Relay Channel. The carrier channel can be configured in the one-way to transfer trip application protection or in the two ways ...

frequency protection relay
frequency protection relay
CGI 14S

SELF POWERED FEEDER PROTECTION RELAY Product Overview The ‘CGI 14S' Self Powered Numerical Protection Relay is designed for use in unmanned substation where ...

over-current protection relay
over-current protection relay
XMR-P

... configuration) • Feeder Protection with additional Power protection element (SW PAC Power) • Feeder Protection with additional Directional Overcurrent and Earth Fault ...

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THYTRONIC
over-voltage protection relay
over-voltage protection relay
KPFV51x series

Trigger voltage: 100 V - 480 V

KPFV51x - SINGLE PHASE - FREQUENCY AND VOLTAGE GUARD Under and Over Voltage and Frequency Protection Adjustable Voltage and Frequency Deviation Set points "Pathfinder" ...

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Meagacon AS
over-voltage protection relay
over-voltage protection relay
T-PRO 4000

... station bus embedded T-PRO relay provides complete 3-phase multi-winding transformer fault and overload protection, DFR-quality fault oscillography, sequence of event logging, trend recording, in a fully ...

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ERLPhase
earth-leakage protection relay
earth-leakage protection relay
VIPAM3500

... Integrated Electronic Device) is a digital protection relay that enables a high-precision measurement and protection relay for switchgear power equipments. The switchgear ...

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VitzroEM Co., Ltd.
voltage protection relay
voltage protection relay
ETR304

-Microprocessor-based digital protection relay for 4 way configuration of switchgear -Local and remote operation available by built-in RTU -DNP 3.0, MODBUS, IEC60870-5-101/104 communication protocols ...

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ENTEC ELECTRIC & ELECTRONIC CO.,LTD
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
earth-leakage protection relay
earth-leakage protection relay
P9690

Tripping current: 0.1 A - 100 A

... supply voltage, frequency, power, power factor and hours run. The user is able to choose from 6 tripping characteristics curves for use on both Overcurrent and Earth fault detection or alternatively, ...