Sync Check Relay Crompton

The operation as synchro check relay with dead bus the 244 14d h and 077 14d operate in the same way as the 244 14l and 077 14l synchro check relays with the addition of a dead bus option.

Sync check relay crompton.

The volt free relay contacts change state when the voltage level phase relationship and frequency are within the selected synchronising limits. The following parameters and functions can be measured and controlled by crompton extensive range of analog and digital meters transducers and protectors. Syncro check and under over speed trip relay functions. This optional feature enables the relay to energise with a gen supply only thus allowing the generator to power the bus during a supply failure.

Various dc models provide protection of battery and ups systems and a range of temperature protection products is ideal to prevent the damaging effects of overheating. With dead bus on if the bus voltage falls below the udbon level the relay energises and the dead bus led lights. Synchro check parallelling the synchro check relay can be used to assist in the semi automatic parallelling of two ac power systems. Ac and dc volts amps frequency watts vars phase angle power factor synchroscope phase sequence speed indicators elapsed time kilowatt hours temperature thermocouple thermistor rtd meter relays va suppressed zero maximum.

The relay will de energise again and the led will go off when the bus. When the monitored parameter deviates from the desired set trip limit the relay will operate to prevent damage to power asset. Crompton supplies protector trip relays and range of electronic control products for electric protection and monitoring. Connecting two electrical systems that a.

The synchro check relay can be used to assist in the semi automatic parallelling of two ac power systems. The relay output can be used for alarm or control purposes. Operate the relay de energises and the sync led goes off. The range offers both traditional and technologically advanced products including single parameter units earth leakage protection ground fault relays vector shift and rocof and microprocessor system protection relays.

If the two supplies are not synchronised the relay operates to provide a control output. The synchro check paralleling protector trip relay compares the voltage frequency and phase angle of two supplies and operates a relay according to the state of synchronisation of the supplies. An extensive range of electronic control products to providing continuous monitoring and protection of any electrical parameter. The volt free relay contacts change state when the voltage level phase relationship and frequency are within the selected synchronising limits.

The relay can be used to turn on an emergency supply in the event of bus supply failure. Connecting two electrical systems that are not closely matched can cause expensive damage and disturbance to the electrical.