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- Frequency monitoring relay
Frequency monitoring relays
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The multifunctional measuring relay UG 9400 of the VARIMETER PRO series allows easy parameter setting, monitoring and diagnosis via a Modbus RTU interface. The measuring relay ...
DOLD

Trigger voltage: 690 V
The speed and frequency monitor UH 6937 provides safe frequency monitoring of AC voltages. It is used to monitor the output frequency ...
DOLD

Trigger voltage: 400, 230 V
Standard-conforming mains and system protection With the new voltage and frequency monitor RP 9811 of the VARIMETER NA family DOLD offers a safe and standard-conforming solution for optimal mains monitoring ...
DOLD

Trigger voltage: 24 V - 300 V
SIL-B Feeder Protection Relay Protection against overcurrent and overvoltage. The ability of measuring current, voltage and frecuency levels combined with Syncro-Check and directional protection functions makes him ...

Monitoring relay RE series; Frequency and voltage monitoring; Grid and system protection; Functional safety; Measuring voltage 3 x 400/230V AC; Supply voltage 24V DC, ...

Trigger voltage: 110, 230, 400 V
... Voltage, generator frequency and network measurement and display (TRMS), including the unbalance between the generator and the network. Automatic synchronisation by simply programming the contactor closing time. Wide ...

The VME420 series of products is comprised of voltage relays that are designed to monitor the undervoltage, overvoltage and voltage between two threshold values. This item works with both DC and AC systems, ...
BENDER

The voltage relays of the VME421H series are designed to monitor the frequency, undervoltage, overvoltage and the voltage between two threshold values (window discriminator function) ...
BENDER

The multi-functional VMD420 series voltage is used for observing frequency, under and over voltage. It also monitors the voltage between two limit values in 3 AC systems. This product has a digital screen ...
BENDER

Trigger voltage: 24, 42, 115, 230 V
FSN Frequency and pulse rate measuring relays complete the ISN pulse rate measuring relay with high frequencies. Three threshold ranges from 100 Hz to| 120 kHz can be selected.

Trigger voltage: 24, 115, 230 V
This is the Klaschka relay for measuring frequency of about 0.4 kHz at maximum. It monitors motors that are driven by static frequency converters. It comes with an adjustable ...

Limit value switch for frequency (square wave signal). Simple application; for rough environments. Limit value freely adjustable by drum scale. Open-circuit or closed-circuit devices available. Compact and robust ...
NORIS Group GmbH

Limit value switch for frequency (sinusoidal signal). Simple application; for rough environments. Limit value freely adjustable by drum scale. Open-circuit or closed-circuit devices available. Compact and robust construction. Operating ...
NORIS Group GmbH

Limit value switch for frequency (alternating voltage). Simple application; for rough environments. Limit value freely adjustable by drum scale. Open-circuit or closed-circuit devices available. Compact and robust ...
NORIS Group GmbH

... The C-mac frequency relay type RF20 is used for monitoring of the supply frequency, f.inst. in connection with generator controls. By means of connections on the relay ...

Monitoring of all static 3-phase parameters: Over / Undervoltage, Sequence, Asymmetry, Frequency. Monitoring of dynamic parameters: df/dt (ROCOF) and Phase angle fault. Programmable ...

Trigger voltage: 100 V - 690 V
Carlo Gavazzi offers a comprehensive range of monitoring controls for monitoring of phase loss, incorrect phase sequence, phase unbalance, over/under current, over/under load, over/under frequency, ...
CARLO GAVAZZI

... and broad frequency ranges • - Automatic/manual reset selectable depending on use • - Input for start-up bypass function to restart the machine • - Safe and installation-friendly connection to pluggable screw terminals The ...

Trigger voltage: 110, 230, 400 V
- Under frequency monitoring - Monitors own supply - Adjustable Trip level - Adjustable Hysteresis - DPDT Relay output - 45mm wide, DIN Rail mount When power ...
Broyce Control

Trigger voltage: 110, 230, 400 V
- Over frequency monitoring - Monitors own supply - Adjustable Trip level - Adjustable Hysteresis - DPDT Relay output - 45mm wide, DIN Rail mount When power is ...
Broyce Control

Trigger voltage: 400, 380, 230, 220, 110 V
- Synchronising Check monitoring - Monitors two AC supplies and checks that voltage, frequency and phase angle are within pre-set limits - DPDT Relay output - 100mm ...
Broyce Control

Trigger voltage: 110 V - 440 V
The Frequency Monitoring Relay is manufactured with monitor frequencies that have three signals which are Sine, Square, and Triangular. This unit can ...

Trigger voltage: 24, 115, 230 V
Converts process signals for a pulsating output, which can be applied on the digital inputs of a PLC. Frequency output 0,05 - 5kHz or 0,5 - 50kHz.

The grid feeding monitoring relay CM-UFD.M31 monitors voltage and frequency in single- and three-phase grids. In connection with alternating-current converters with ...
ABB

Synchronism Relay with LED to contact 96x96mm Configurable by keyboard Measure and display synchronism parameters Voltage difference percentage Frequency difference percentage Phase angle Manual, ...

... Series relay is a frequency monitoring relay with four stages of adjustable frequency pick up & drop out points. Each frequency ...

The Model 292 Frequency Monitor is designed to monitor power line frequency. It is intended for systems where line frequency variations will cause improper ...

Monitoring relay VRSC1-28Synchro-check mointoring relayDESCRIPTION This unit compares the voltage, frequency and phase of two supplies and operates a relay according ...
ELKO

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