sensor PM864A 3BSE018162R1


External connections:
• Excitation current to the load cells
• 2 or 4 analog inputs for load cell signals
• 4 analog outputs, voltage or current
• 8 digital inputs for control signals
• 8 digital outputs
• +24 V supply for external units, max 0.5 A
• Ethernet connection
• Service and multiple control units
• 2 serial interfaces of type RS-232 for
external displays, control, etc.

Model:PM864A 3BSE018162R1

Category: SKU: PM864A 3BSE018162R1 Tag:
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Contacts:kelly CHEN


sensor PM864A 3BSE018162R1

sensor PM864A 3BSE018162R1


Accumulated energy Monitoring the contact erosion and interrupter wear has a direct influence on the required maintenance frequency. Therefore, it is necessary to accurately estimate the erosion of the contacts and condition of interrupters using cumulative summation of I y .

The factor “y” depends on the type of circuit breaker. The energy values were accumulated using the current value and exponent factor for CB contact opening duration.

When the next CB opening operation is started, the energy is accumulated from the previous value. The accumulated energy value can be reset to initial accumulation energy value by using the Reset accumulating energy input, RSTIPOW. Circuit breaker operation cycles Routine breaker maintenance like lubricating breaker mechanism is based on the number of operations.

A suitable threshold setting helps in preventive maintenance. This can also be used to indicate the requirement for oil sampling for dielectric testing in case of an oil circuit breaker. Circuit breaker operation monitoring By monitoring the activity of the number of operations, it is possible to calculate the number of days the breaker has been inactive. Long periods of inactivity degrade the reliability for the protection system. Circuit breaker spring charge monitoring For normal circuit breaker operation, the circuit breaker spring should be charged within a specified time. Detecting a long spring charging time indicates the time for circuit breaker maintenance.

The last value of the spring charging time can be given as a service value. Circuit breaker gas pressure indication For proper arc extinction by the compressed gas in the circuit breaker, the pressure of the gas must be adequate. Binary input available from the pressure sensor is based on the pressure levels inside the arc chamber. When the pressure becomes too low compared to the required value, the circuit breaker operation is blocked.



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