Design specification for permanent power distribution system at Ya'an City Central Cash Processing Center, including equipment selection, metering…
This document outlines the design for the permanent power distribution system at Ya'an City Central Cash Processing Center. It covers design basis, project scope, equipment selection, metering methods, reactive power compensation, lightning protection, and grounding. The project includes two 500kVA SCB13 dry-type transformers and associated electrical components. The design is completed by Sichuan Chuan Dian Electric Power Design Co., Ltd. and includes detailed material lists and technical specifications for installation. This manual is written in Chinese.
| Transformer Type | SCB13-500/10±5%/0.4kV, D,yn11 |
|---|---|
| Transformer Capacity | 2 × 500kVA |
| Power Factor | 0.90 or higher |
| Grounding Resistance | ≤ 4Ω |
| Cable Type | YJV22-8.7/15kV 3×95 and 3×70 |
The project uses two 500kVA SCB13 dry-type transformers with D,yn11 connection.
The power factor after compensation is 0.90 or higher.
The grounding resistance must be ≤ 4Ω.
The metering method is high-voltage metering (high supply, high metering) with a multifunctional electronic meter installed on the low-voltage side for reference.