Protection relay MTR-4P

DEIF multifunctional protection relay MTR-4P provides 13 different protection functions for generator sets in 6 logical categories: voltage (over / undervoltage), current (over / under current), frequency (over / underfrequency), unbalance (voltage imbalance and phase imbalance), load (directional power, reduced power) and LoM (phase shift, ROCOF df / dt). For each protection category, a different trip setting can be set for each function, depending on the limit value in%.

The MTR-4P relay has three modifications:

• MTR-4P-105 with one relay output;
• MTR-4P-205 with two relay outputs;
• MTR-4P-415 with four relay outputs and RS485 interface.

The MTR-4P relay can be used as a measuring transducer, the number of values ​​is more than 50 (V, A, kW, KVA, KVAR, KWh, KVARh, cos φ, Hz, THD and others).

Specifications:

• AC 48 ... 230 V ± 20%
• Frequency 45 ... 65 Hz
• DC 24 ... 250 V ± 20%
• Consumption: <8 VA
• Max consumption <20 A; 1 ms
• Output voltage: 48 V AC / DC (+ 40% max.)
• Load - max. 1000 mA
• Rated frequency: 50 or 60 Hz
• Operating temperature -30 ... 70 ° C
• Storage temperature -40 ... 70 ° C