Research Article
Protection for DC Distribution System with Distributed Generator
Table 2
The setting values of parameters (sampling frequency of protection device: 5 kHz).
| | Protection types | Parameters | Setting values |
| | Start component | Protection startup setting value | (kV) | 0.1 | | DC bus protection | Differential current setting value | (kA) | 0.5 | | DC line protection | | | | | Line 1 (CB2, CB4) | Instantaneous current setting value | (kA) | 2.5 | | Time-limit current setting value | (kA) | 0.6 | | Delay setting value | (s) | 0.1 | | Reverse current margin | (kA) | 0.05 | | Line 2 (CB5) | Instantaneous current setting value | (kA) | 1.3 | | Time-limit current setting value | (kA) | 0.7 | | Delay setting value | (s) | 0.1 | | Line 3 (CB6) | Instantaneous current setting value | (kA) | 1.2 | | Time-limit current setting value | (kA) | 0.7 | | Delay setting value | (s) | 0.1 | | Line 4 (CB7) | Instantaneous current setting value | (kA) | 1.4 | | Time-limit current setting value | (kA) | 0.7 | | Delay setting value | (s) | 0.1 | | The outlet of rectifier (CB3) | Reverse current margin | (kA) | 0.05 |
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