- REM615 is a motor protection and monitoring relay produced by ABB. The relevant parameters are as follows:
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Electrical Parameters
- Rated Voltage: DC 24V to 250V, AC 100V to 240V.
- Rated Current: Usually 1A or 5A (input and output current), depending on the model configuration.
- Power Consumption: Less than 10W.
- Frequency Range: 50/60Hz.
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Protection Function Parameters
- Overcurrent Protection: Equipped with three-phase non-directional overcurrent protection, which can set low-setting section and instantaneous section.
- Earth Fault Protection: Supports non-directional earth fault protection (low-setting section, high-setting section); some models can support directional earth fault protection.
- Voltage Protection: Including three-phase undervoltage protection, positive sequence undervoltage protection, negative sequence overvoltage protection, etc.
- Other Protections: Also has functions such as negative sequence current protection, no-load protection, locked-rotor protection, thermal overload protection, circuit breaker failure protection, etc.
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Control Functions
- Supports start, stop, and inching control of motors, and can also realize manual/automatic switching and load-shedding control, etc.
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Measurement Functions
- Can measure three-phase current, current sequence components, zero-sequence current, three-phase voltage, zero-sequence voltage, voltage sequence components, three-phase power, electrical energy, power factor, and frequency, etc.
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Communication Interface
- Supports communication protocols such as IEC 61850 (including GOOSE horizontal communication), IEC 60870-5-103, and Modbus.
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Mechanical Parameters
- Dimensions: Approximately 220mm in width, 225mm in height, and 170mm in depth.
- Weight: Approximately 4.5kg.
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Input and Output Characteristics
- Binary Input: Rated voltage 24V to 250V DC, current consumption 1.6mA to 1.9mA, threshold voltage 18V to 176V DC, response time 3ms.
- Signal Output and IRF Output: Rated voltage 250V AC/DC, continuous contact carrying current 5A, making and carrying current 10A for 3.0s, making and carrying current 15A for 0.5s.
- Power Output Relay: Rated voltage 250V AC/DC, continuous contact carrying current 5A, making and carrying current 15A for 3.0s, making and carrying current 30A for 0.5s.|
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