ABB 1MRS050469A1 MIM4140 1MSC980130

1MRS050469 MIM4140 TRANSFORMER MODULE can be used for a Remote monitoring and control unit. The REC 523 remote monitoring and control unit incorporates a wide range of functions.

 

Protection and fault indication functions：

1MRS050469 MIM4140 provides a set of protection functions that can also be used for fault indication. The protection function blocks supported by REC 523 are independent of each other and have their setting groups, data recording, etc.

The typical current-based protection functions (e.g., overcurrent) can use either Rogowski coil or conventional current transformer measurement. Correspondingly, voltage-based functions (e.g., undervoltage) use either voltage dividers or voltage transformers.

By means of the fault indication functions, the network control system can obtain information about measured and set values. The information can be used, for instance, to locate faults in a medium voltage distribution network. The wide energizing input ranges of transformers and sensors facilitate monitoring and fault indication in different types of substations.

 

Measurement functions include three-phase currents, neutral current, three-phase voltages, residual voltage, frequency, active and reactive power, and power factor. In addition, other measurement functions are available.

As a standard feature, the REC 523 remote monitoring and control unit includes three pulse-counter inputs.

 

The power quality functions enable measurement of total harmonic distortion (THD) of voltage and current, and the total demand distortion (TDD) of current. Individual harmonics are measured up to the 13th.order.

The power quality functions produce statistical data about harmonic distortion for long term evaluation. Short time average and maximum values for the THD and the individual harmonics are also supported.