SF6 current transformer
Delivery time: 45 days
WS
Outdoor, inverted, SF6 current transformers of various pollution levels, with models of LVQB (T) - 35, LVQB-66, LVQB-110, LVQB (T) - 220, LVQB (T) - 330, LVQBT-500.
The current transformer is used to convert the large current on the line into smaller standard current values (1A, 5A) in proportion for electrical measurement and protection.
The manual provides the product description of the current transformer as well as relevant operation information, use information and precautions after delivery. 2.2.2 Altitude
The sea level shall not exceed 1000m. When it is used in areas with sea level exceeding 1000m, the test voltage of its external insulation shall be corrected according to GB 311.1.
2.2.3 Atmospheric conditions
There is no pollution, corrosive and explosive medium in the atmosphere that seriously affects the insulation of the transformer.
2.2.The monthly average relative humidity is 95% (at 25 ℃).
2.2.5 Wind speed: 34 m/s.
2.2.6 Seismic resistance: the fortification intensity is 8 degrees (3 cycles of sinusoidal resonance, 5% attenuation), the ground horizontal acceleration is 0.30g, the ground vertical acceleration is 0.15g,
The safety factor is 1.67.
2.2.7 Refer to the product nameplate and factory test certificate for other performance data of the product.
2.3 Product structure
This product is an outdoor type, SF6 gas insulated, inverted structure. The upper part of the product is the current transformer body, and the middle part is a silicon rubber composite insulating sleeve or high
Strength porcelain bushing, with product support base at the bottom.
2.4 External insulation of products
The external insulation of the product is silicone rubber composite insulating sleeve or high-strength porcelain sleeve, and its flashover distance and creepage distance determine the external insulation performance of the product. Product
Voltage grade and environmental conditions determine the shape and creepage distance of casing umbrella skirt.
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