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Frequency protection relay KCF221x seriessingle-phasethree-phasedigital
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Characteristics
- Measured/monitored value
- frequency
- Network
- single-phase, three-phase
- Other characteristics
- digital, time delay
- Trigger voltage
Max.: 480 V
Min.: 100 V
Description
KCF221x Series
KCF221x - FREQUENCY GUARD FOR SINGLE OR THREE PHASE SYSTEMS
Precision High / Low Frequency Protection
Ranges 45-55, 55-65 and 45-65Hz
Quartz Controlled Frequency Protection and Meter
Definite time trip delays
Complies with G59 requirements
Optional very fast analogue output (<50mS), (F-versions)
Optional Slave Indicator with Status LEDs
The digitally controlled KCF221E provide precision (0.2%) high/low frequency protection.
A digital, crystal controlled frequency window discriminator controls operation and delay of the frequency low/high alarm relays. The unit measures the zero point crossing of the voltage true r.m.s. value, and accuracy is independent of any wave form distortion.
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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.