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  <controlfield tag="003">Thư viện trường Cao đẳng Kỹ thuật Cao Thắng</controlfield>
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   <subfield code="a">Tái bản lần thứ 2</subfield>
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   <subfield code="a">H. : </subfield>
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   <subfield code="a">1- Các thông số của đường dây trên không</subfield>
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   <subfield code="a">2- Đường dây siêu cao và hệ thống tải điện siêu cao áp.</subfield>
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   <subfield code="a">Các thông số của đường dây cáp được nhà sản xuất cho sẵn trên cơ sở thực nghiệm, không thể dùng phép tính được.</subfield>
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   <subfield code="a">Dung dẫn đối với đất của các đường dây trung áp có trung tínhcách đất cũng phải tính theo các công thức trong chương này, vì trong các bảng tra cứu chỉ cho biết dung dẫn của dây dẫn với nhau với giả thiết đường dây đảo pha. Trong trường hợp đường dây không đảo pha cũng phải tính cụ thể.</subfield>
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   <subfield code="a">Trong chương này trình bày lý thuyết về đường dây siêu cao áp, phương pháp giải tích, phương hướng đặt các thiết bị bù.</subfield>
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   <subfield code="a">Trong chương trình này trình bày các công thức tính điện kháng và dung dẫn của đường dây trên cơ sở cấu trúc của đường dây : bố trí dây trên cột, độ cao của dây đối với đất....Đối với các đường dây điện áp 110KV trở xuống có thể dùng các thông số tra trong các bảng tra cứu. Nhưng từ 220Kv trở lên nhất là 500 KV thì phải tính riêng các thông sốcho từng đường dây cụ thể, nếu không các tính toán sẽ gặp sai số lớn.</subfield>
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