本工程中，当地供电部门提供了两路10kV专用电源，进线采用电缆引入，当

In this project, the local power supply department provided two 10kV special power sources, and the incoming line was introduced by cable. The short circuit system at the 10KV feeder of the data switching station provided by the local power supply department was: Soc = 200MV • A. Protection delay is 1.5S. <br>Taking the calculation of the short-circuit current on the high-voltage side of the transformer (at point d1 in Figure 3) as an example, the calculation steps are as follows:

In this project, the local power supply department provides two 10kV dedicated power supply, the inlet line is introduced by cable, the local power supply department provides the data opening and closing 10KV feeder short circuit system for: Soc 200MV-A, open and close feeder switch over current protection delay of 1.5S.<br>The calculation of short-circuit current on the high-voltage side of the transformer (at point d1 in Figure 3) is used as an example, and the calculation steps are as follows:

In this project, the local power supply department provides two 10kV special power supplies, and the incoming line is introduced by cable. The short circuit system at 10kV feeder line of the data switching station provided by the local power supply department is: SOC = 200mV · a, and the switching overcurrent protection delay of the feeder line of the switching station is 1.5S 。<br>Take the short-circuit current calculation of the high-voltage side of the transformer (point D1 in Fig. 3) as an example, the calculation steps are as follows: