Description
The ABB REF601 is a dedicated feeder protection and control relay, intended for the protection and control of utility substations and industrial power systems, in primary and secondary distribution networks. It is a member of ABB’s Relion® product family and part of its 605 series.
The REF601 is designed to unleash the advantages of current sensors for protection and control in medium voltage applications. It uses Rogowski coil sensors for current measurement, which offer a number of advantages over traditional current transformers, including:
- Smaller size and lighter weight
- Easier installation and maintenance
- Higher accuracy and bandwidth
- Immunity to saturation
The REF601 provides a comprehensive range of protection functions, including:
- Overcurrent protection
- Short-circuit protection
- Earth fault protection
- Overvoltage protection
- Undervoltage protection
- Frequency protection
- Power protection
- Directional protection
Product details
- Rated voltage: 69 kV
- Rated current: 1000 A
- Protection functions: Overcurrent, short-circuit, earth fault, overvoltage, undervoltage, frequency, power, directional
- Control functions: Breaker control, recloser control, sectionalizer control, load shedding control
- Communication interfaces: Ethernet, IEC 60870-5-103, MODBUS RTU
- Dimensions: 165 x 132 x 70 mm
- Weight: 1.5 kg
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