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MMP
Smart Electronic Motor Protection Relay
ㆍCurrent, Voltage, Power Measurement, and Power Factor Protection
ㆍInstantaneous interruption compensation and restarting
ㆍHarmonic measurement (1st to 16th)
ㆍModbus communication and 4~20mA
Features
Convenience
ㆍComprehensive digital motor protection relay with the MCU (microprocessor control unit)
ㆍApplicable to inverter circuits
ㆍFunction to store the cause(s) of failure/fault
ㆍOne-body type and separate body type
ㆍCommunication function (RS485 modbus and 4~20ma output)
ㆍA wide range of reset functions
ㆍDate information display
ㆍPassword setting
ㆍTotal operating time and operating time setting
ㆍWide setting of ground fault current sensitivity 30ma~25a
Reliability
ㆍThermal heat build-up inverse time/inverse time/definite time selection function
ㆍWide setting range and dual protection
ㆍThe device may be used without external CT up to 100A, providing convenience and cost-effective solution
ㆍVarious motor starting modes
ㆍMetering of current, voltage, and energy (with 1% accuracy for A & V)
ㆍCarries out complex relay functions related to current, voltage, energy, and power factor
ㆍSelf-diagnosis and sequence monitoring
ㆍPower loss and restarting
ㆍFrequent-starting protection
Functions
Function | Range | Accuracy(%) | Remarks |
---|---|---|---|
Voltage (V) | 0.00V~9999V | ±1.0% | Phase1 : Phase voltage, Phase3 : Line voltage |
Current (A) | 0.00V~9999V | ±1.0% | Phase current |
Zero-phase current (In) | 0.00V~9999V | ±3.0% | - |
Reverse current (I2) | 0.00V~9999V | ±3.0% | - |
Active power (W) | 0.000W~999.9MW | ±1.0% | Forward |
Reactive power (VAR) | 0.000W~999.9MVAR | ±1.0% | Forward |
Active power amount (WH) | 0.000W~999.9MWH | ±1.0% | - |
Reactive power amount (WVARH) | 0.000W~999.9MVARH | ±1.0% | - |
PF | -1.00~1.00 | ±0.03 | cosθ |
Voltage hamonics (%) | 0~100% | ±5.0% | 2nd -16th odd harmonics |
Current hamonics (%) | 0~100% | ±5.0% | 2nd -16th odd harmonics |
Specification
Rating | Specification |
---|---|
Communication number | 1~247 |
Baud rate | 9600, 19200, 38400 bps |
Communication Parity | None, Even, Odd |
Stop Bit | 1bit (fixed) |
Communication data swap | OFF / ON (Limited to float, long data of 0x04 (Read Input Registers)) |
Operation mode | Differential |
Communication distance | Max. 1.2km |
Cable | RS-485 Shielded Twist 2-Pair Cable |
Transmission Method | Half-Duplex– |
Max. In/Output Voltage | -7V~+12V |