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General| Rated Current | 1 A or 5 A |
|---|---|
| Differential protection | Yes |
| Overcurrent protection | Yes |
| Earth-fault protection | Yes |
| Rated Frequency | 50 Hz / 60 Hz |
| Communication Interfaces | Ethernet |
| Protocols | IEC 61850 |
| Operating Temperature | -25°C to +55°C |
| Storage Temperature | -40°C to +70°C |
| Dimensions | 177 mm |
| Protection Functions | Differential, Overcurrent, Earth-fault, Overvoltage, Undervoltage |
Introduces the SIPROTEC 4 device, its scope of application, properties, and functional scope.
Describes individual functions available on the SIPROTEC 4 device and their setting possibilities.
Provides guidelines for experienced engineers on hardware mounting, connections, and commissioning.
Details the device's suitability for protecting transformers, generators, motors, reactors, lines, and busbars.
Describes the main protection function based on current comparison, considering transformer ratios and connections.
Explains protection against earth faults by comparing phase and starpoint currents.
Prevents damage due to thermal overloading using thermal replica or hot-spot calculation.
Detects increased overflux or overinduction conditions in generators and transformers.
Protects turbo-generator units by detecting active power input.
Provides rapid back-up fault clearance when a circuit breaker fails.
Provides guidelines for hardware mounting, connections, and prerequisites for installation.
Outlines the steps for commissioning the device, including safety warnings and testing procedures.
Details technical data for differential protection, including pickup values, time delays, and tripping characteristics.
Provides technical data for restricted earth fault protection, including setting ranges, operating time, and frequency influence.
Provides technical data for thermal overload protection, including setting ranges, trip curve, and tolerances.
Presents technical data for overload protection, including setting ranges, times, and influencing variables.
Provides technical data for reverse power protection, including setting ranges, times, and tolerances.
Provides technical data for circuit breaker failure protection, including supervision, starting conditions, and times.
Shows connection examples for current and voltage transformers for various applications.
Lists possible protection functions that can be enabled or disabled based on the device configuration.
Provides a comprehensive list of all adjustable parameters for the device's functions.
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