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GVD Voltage Transformers

GVD series product is an electromagnetic gas insulated voltage transformer designed for GIS substation. The iron core and winding are located in the housing, and all GVD products can be installed horizontally and vertically. The low design magnetic flux density and special core structure of the transformer core can effectively reduce the possibility of ferromagnetic resonance in the product. The interior can be filled with SF6 or various environmental friendly gases for insulation, with a lightweight structure, excellent seismic performance, and simple transportation and installation.

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GVD

Product Description

1.Product Description

GVD series product is an electromagnetic gas insulated voltage transformer designed for GIS substation. The iron core and winding are located in the housing, and all GVD products can be installed horizontally and vertically. The low design magnetic flux density and special core structure of the transformer core can effectively reduce the possibility of ferromagnetic resonance in the product. The interior can be filled with SF6 or various environmental friendly gases for insulation, with a lightweight structure, excellent seismic performance, and simple transportation and installation.

2.Product Parameters

	72.5kV	126kV	126kV	145kV	252kV	550kV
Type	GVD 3/72.5	GVD 1/126	GVD 3/126	GVD 3/145	GVD 1/252	GVD 1/550
Phase number	Three	Single	Three	Three	Single	Single
Rated insulation level/kV	72.5/160/350	126/230/550	126/230/550	145/275/650	252/460/1050	550/740/1675
Rated frequency/Hz	50 or 60	50 or 60	50 or 60	50 or 60	50 or 60	50 or 60
Rated voltage factor	1.2/continuous 1.5/30s 1.9/8h	1.2/continuous 1.5/30s 1.9/8h	1.2/continuous 1.5/30s 1.9/8h	1.2/continuous 1.5/30s 1.9/8h	1.2/continuous 1.5/30s 1.9/8h	1.2/continuous 1.5/30s 1.9/8h
Number of secondary windings	1 to 4 pcs	1 to 4 pcs	1 to 4 pcs	1 to 4 pcs	1 to 4 pcs	1 to 4 pcs
Typical secondary winding combinations and corresponding loads	0.2/0.5/3P 30/30/300 0.2/0.5/0.5/3P 10/30/30/100	0.2/0.5/3P 50/50/300 0.2/0.5/0.5/3P 30/30/30/100	0.2/0.5/3P 75/100/300 0.2/0.5/0.5/3P 50/50/75/100	0.2/0.5/3P 75/100/300 0.2/0.5/0.5/3P 50/50/75/100	0.2/0.5/3P 150/150/300 0.2/0.5/0.5/3P 100/100/100/300	0.2/0.5/3P 100/150/300 0.2/0.5/0.5/3P 100/100/150/300

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