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Help CenterREX521GHHPSH07G REX521GHHPSH50G ABB The Logic Controller is Brand New and Original
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REX521GHHPSH07G REX521GHHPSH50G ABB The logic controller is brand new and original
REX521GHHPSH07G REX521GHHPSH50G ABB The logic controller is brand new and original
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The status monitoring function continuously monitors the performance and status of the circuit breaker, including the spring energy storage
Time, SF6 gas pressure, travel time and rest time.
The circuit breaker monitoring function provides historical data of circuit breaker action, which can be used to formulate
Preventive maintenance scheme of circuit breaker.
In addition, the device also includes a running time counter to monitor the protection device
In order to make preventive maintenance plan for the unit.
Tripping and closing circuit monitoring
The tripping / closing circuit monitoring function continuously monitors the availability and operability of the tripping / closing circuit
Work. It provides circuit monitoring when the circuit breaker is in the closing position and the opening position.
In addition, it also detects the control circuit voltage of the circuit breaker.
Self check function
The built-in self-test system of the device can continuously monitor the operation of hardware and software of the device
Besides. Once a fault or abnormal condition is detected, the device will give an alarm.
In case of permanent failure, the device will block the protection function to prevent the
Misoperation.
PT disconnection monitoring
According to the standard configuration, the device is equipped with Pt disconnection monitoring function. PT disconnection monitoring function
Detect the fault of secondary circuit between Pt and device. This function is based on negative sequence power
Voltage and negative sequence current or abrupt voltage and abrupt current. Once the fault is detected
The PT disconnection monitoring function will give an alarm and lock the protection function related to voltage
Thereby preventing malfunction.
CT loop monitoring
According to the standard configuration, the device is equipped with CT loop monitoring function. CT loop monitoring function
It is used to detect faults in the secondary circuit of current transformer. Once a fault is detected,
The CT loop monitoring function will give an alarm and lock specific protection functions, so as to prevent
Stop misoperation. The CT loop monitoring function consists of the internal calculation of the three-phase current and the magnetic
Balance the value of external sum of current transformer or another group of three-phase current transformers
Comparison.
access control
In order to prevent unauthorized users from misoperation and maintain the integrity of information, the device
Four levels of operation authority are defined: browser, operator, engineer and management
Clerk. Users at each level log in with different accounts and passwords. Access controller
Including local human-machine interface, webpage human-machine interface and pcm600 tool.
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