Line Suspension Arrester
6~220kV AC transmission and transformation lines are connected to both ends of insulators (strings) in parallel with suspended organic composite jacket oxygen oxide arresters, which are specially designed to limit line lightning overvoltage, improve line lightning withstand level, and reduce the tripping rate caused by lightning failure of the system. Our company has applied the technical innovation of producing electric power fittings and composite insulators for many years to the line arrester, which has greatly improved the production performance,
Reference standards
GB11032-2000 AC gapless metal oxide arrester
JB/T8952-2005 Metal Oxide Surge Arrester with Composite Jacket for AC System
JB/T10497-2005 Metal Oxide Surge Arresters with Series Gap and Composite Jacket for AC Transmission Lines
GB311.11-1997 Insulation Coordination of High Voltage Transmission and Transformation Equipment
JB/T8459-2006 Preparation Method of Arrester Product Model
□ Structural characteristics
1. Reasonable design, novel structure, reliable technical performance, compact shape, light weight, flexible installation, high tensile strength, collision resistance, and no damage during transportation;
2. The advantages of silicone rubber sheathed metal oxide arrester are cited. The overall molding is one-time forming, with good sealing, pollution resistance, explosion-proof, moisture-proof performance, high dielectric strength, good heat dissipation performance, and large overvoltage energy absorption capacity.
□ Service conditions
a. The altitude is not more than 2000 meters
b. Ambient temperature: - 40 ° C~+- 40 ° C
c. The maximum wind speed shall not exceed 35m/S
d. Power frequency: 48HZ ～ 62HZ
e. The arrester is allowed to swing, and the suspension mode is considered according to the tower shape
□ Product model description
HY 5 □ X 5 -□/□ □
| | | | | | |______ Additional feature code: J indicates that the system neutral point is effectively grounded; W stands for heavily polluted area; G stands for high altitude area
| | | | | |____________ Rated voltage of arrester kV/residual voltage under standard discharge current of well-known person kV
| | | | |_________________ Design No
| | | |_____________________ Place of use: X indicates the route
| | |_________________________ Structural features: W surface has no gap; C meter has series clearance; Table B has parallel clearance
| |____________________________ Nominal personal discharge current, kA
|________________________________ Metal oxide arrester with composite sheath
□ Most suitable
1. Transmission lines with low lightning withstand level and high lightning trip rate
2. Areas that are not suitable for maintenance, such as dry and rainless hills and the same area
3. Towers and regions with high grounding resistance
4. Large span dry tower crossing the river
5. The switching overvoltage is high, and it is necessary to restrict the situation before entering the substation
6. Seriously polluted area
□ Ordering instructions
1. See the attached table for product technical performance and parameters;
2. If the model or shape structure proposed by the user is inconsistent with this sample, it can be noted when ordering, so that our company can design and produce specially to meet the user's needs.
