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Overview
The ABB REJ603BBB10NN3XC is a self-powered feeder protection relay that is used to protect secondary distribution networks in utilities and industries. It is a numerical relay, which means that it uses digital signal processing to perform its protection functions. This makes it more accurate and reliable than traditional electromechanical relays.
Features
- Three-phase overcurrent protection
- Earth-fault protection
- Transformer inrush protection
- Remote trip
- Low energy trip output
- Self-powered, does not require an external power supply
- Available with a variety of current transformer (CT) ratings
- Can be configured to use either internal or external earth-fault measurement
- Built-in self-supervision system
- Compatible with a variety of communication protocols
Technical Specifications
- Rated frequency: 50/60 Hz ± 5 Hz
- Phase inputs:
- Nominal primary current range: 8 – 28 A
- Thermal withstand capability:
- Continuously: 2.5 x Ismax
- For 1 s: 25 kA primary current
- For 3 s: 20 kA primary current
- Dynamic current withstand:
- Half-wave value: 62.5 kA primary current
- Earth input:
- Rated current, In: 1 A
- Thermal withstand capability:
- Continuously: 4 A
- For 1 s: 100 A
- Dynamic current withstand:
- Half-wave value: 250 A
- Binary inputs:
- Rated voltage: 24 – 240 V AC/DC
- Operating range: -15%…+10% for AC, -30% … +20% for DC
- Current drain: 2…15 mA
- Power consumption: < 0.8 W
- Threshold voltage: 13 V AC/17 V DC
- Impulse voltage trip output:
- Rated output voltage: 12 V
- Pulse time: 30 ms
- Energy: 50 mJ
Applications
The ABB REJ603BBB10NN3XC can be used in a variety of applications, including:
Secondary distribution networks in utilities and industries
- Substations
- Power plants
- Data centers
- Critical infrastructure
It can also be used to protect a variety of equipment, including: - Transformers
- Motors
- Generators
- Switchgear
- Cables
MORE：REJ603HMI_pg_1MDS07208-YN_ENc
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| ABB | REJ603BBB10NN3XC |
