Overview
The GW13 series neutral disconnector is used to divide the neutral point connection of the transformer under the condition of no load, and can provide an insulation distance that meets the safety requirements when the gate blade is in the normal opening position. The output shaft of the operating mechanism can be rotated horizontally for 180 degrees, and the positioning device on the operating mechanism can ensure that the contact and the static contact are in the correct position or breaking position.
This neutral disconnector meets the requirements of GB1985 "AC High Voltage Disconnector and Grounding Switch" and IEC-129 (1984) standard. It has reliable performance, safe operation, simple structure, and easy installation and adjustment. Widely used in 63KV-110KV substation. Main products: GW13-40.5/630-8
Normal Use Environment
◇ The altitude does not exceed 1000m;
◇ Ambient air temperature: upper limit +40 degrees, lower limit -40 degrees;
◇ Wind pressure does not exceed 700Pa;
◇ The seismic intensity does not exceed 8;
◇ The thickness of the icing is not more than 10mm;
◇ Pollution level of pillar insulator: ordinary type is grade 0, and stain-resistant type is according to user requirements.
Peculiarity
1. The bearing turntable structure has been improved, so that the bearing seat has achieved the waterproof function. And equipped with oil injection holes, adjustment screws, the integrity of the switch is strong, and the maintenance is simpler and more convenient.
2. Brazing process is used between the conductive rod and the contact, between the conductive rod and the contact holder, and a soft connection is installed between the contact and the contact holder, so that the resistance of the main circuit of the product is greatly reduced compared with the screw connection, so as to reduce the heating problem of the contact in operation. The grounding guide rod is made of aluminum alloy with excellent conductivity, the contact part is made of copper casting, and the soft connection between the conductive rod and the base and the grounding contact finger and the contact finger seat are installed, so the conductivity of the grounding circuit is greatly enhanced.
3. The conductive exposed parts are made of copper silver plating surface treatment process, silver plating treatment, smooth surface, beautiful appearance, strong corrosion resistance, durable and durable.
4. Improve the matching mode of shaft and hole: the matching of iron and copper is changed to the matching of copper and copper or the matching of stainless steel and copper, which solves the phenomenon of biting in outdoor use for a long time. Exposed standard parts are made of stainless steel; The metal parts are treated with hot-dip galvanizing, and the corrosion resistance of the switch.
