Transformer Differential Protection Relay Block 7UT513

Type : 7UT513

Features and technical specifications:

1. Restraint during inrush, overexcitation and CT-saturation
2. Digital inputs: 3/5 binary inputs
3. Digital outputs: 2/5 trip relays ; 5/11 alarm relays
4. Binary output’s : 5 Alarm relay outputs, 2 command output (2 NO each)
5. System interface: –  IEC 60870-5-103 protocol                                                                                                                                                                                                                                                                                                        The following functions are available
   1. Short-circuit protection for generators and motors with high setting sensivity
   2. Short-circuit protection for short lines and bus bars up to 3 feeders
   3. Overload protection with a thermal characteristic for 2 Windings /2 terminations                                                                                                                                                                                                                              This Motor Protection relay block is easily insert in your schematic diagram and connect as you like way.

   The 7UT513 differential protection relays are used for fast and selective isolation of short-circuits in transformers of all voltage levels and also in rotating electric machines and short lines. The particular
   application can be chosen by setting. In this way an optimal adaptation of the relay to the protected object can be achieved. The protection relay can be parameterized for use with three-phase and single-phase transformers. In addition to this, a thermal replica is integrated for the supervision of the thermal losses in the
   plant. A backup over current-time protection and two thermal monitoring functions are also integrated. The larger 7UT513 unit is used for two-winding and three-winding transformers, generators/motors and short two end and three-end lines.Two thermal monitoring functions are integrated as additional functions. Moreover, as an alternative, a standby definite-time/inverse-time over current or a restricted earth-fault (REF) or a tank protection function is available for one winding.The 7UT513 can also be used where the star point current of the transformer must be acquired or more inputs and outputs are required than are provided by the 7UT512. The device can interface with conventional control systems or alternatively be integrated in the modern substation control system.