surge arresters
surge arresters
"JECSANY" is a professional China various medium and high voltage product provider which supplies Surge Arresters, auto reclosers, switchgear, dropout fuses, polymer/porcelain insulators, power tools, power accessories, OPGW/ADSS optical cable, distribution transformers, etc. And be able to provide one-stop service for new and old customers, including product development, design, manufacturing, transportation, installation, and after-sales service.
A surge arrester is an electrical appliance used to protect electrical equipment from high transient overvoltage hazards and to limit the freewheeling time and often the freewheeling amplitude. It is another important device that is often used in communication cables to prevent lightning damage. Lightning arresters are sometimes also called overvoltage protectors, overvoltage limiters.
Gapless metal oxide Surge arresters are used to protect the insulation of AC power transmission and transformation equipment from lightning overvoltage and operating overvoltage damage. It is suitable for overvoltage protection of transformers, transmission lines, distribution panels, switch cabinets, power metering boxes, vacuum switches, parallel compensation capacitors, rotating electrical machines and semiconductor devices.
The gapless metal oxide surge arrester has excellent nonlinear volt-ampere characteristics, good response characteristics, no freewheeling, large current capacity, low residual voltage, strong ability to suppress overvoltage, pollution resistance, anti-aging, not subject to altitude constraints, Simple structure, no gap, tight seal, long life and so on.
The arrester is in a high resistance state under normal system operating voltage, and only microampere current flows. It exhibits low resistance under the action of overvoltage and high current, thus limiting the residual voltage across the arrester.
There are many kinds of arresters, including metal oxide arresters, line-type metal oxide arresters, gapless line-type metal oxide arresters, fully insulated composite jacket metal oxide arresters, and detachable arresters.
The main types of arresters are tubular arresters, valve arresters and zinc oxide arresters. The main working principle of each type of arrester is different, but their work is essentially the same, all to protect communication cables and communication equipment from damage.
"JECSANY" Surge Arresters have stable quality and have third-party IEC test reports, and the products are exported to North America, Southeast Asia, South Africa, South America, the Middle East and other global markets. OEM customization can also be made according to the drawings or samples provided by customers.
Arrester Discharge Counter
The discharge counter is the electrical equipment that connected in series under the surge arrester to record the number of operations of the arrester, master the law of lightning activity, continuously improve the reliability of lightning protection of power transmission and distribution equipment, monitor the life of the surge arrester and study the operation of the power system under the action of atmospheric overvoltage.
JDC-03 Thermal Explode Type Disconnector for lightning arrester
Surge arrester thermal explode type disconnector is a device for disconnecting an arrester from the system in the event of arrester failure, to prevent a persistent fault on the system and to give visible indication of the failed arrester. The thermal explode disconnectors meet the standard of IEC60099-4.
JDC-02 Thermal Explode Type Disconnector for lightning arrester
Surge arrester thermal explode type disconnector is a device for disconnecting an arrester from the system in the event of arrester failure, to prevent a persistent fault on the system and to give visible indication of the failed arrester. The thermal explode disconnectors meet the standard of IEC60099-4.
JDC-01 Thermal Explode Type Disconnector for lightning arrester
Surge arrester thermal explode type disconnector is a device for disconnecting an arrester from the system in the event of arrester failure, to prevent a persistent fault on the system and to give visible indication of the failed arrester. The thermal explode disconnectors meet the standard of IEC60099-4.
High Voltage Thermal Explode Type Disconnector
High Voltage Thermal Explode Type Disconnector is a device for disconnecting a surge arrester from the system in the event of arrester failure, to prevent a persistent fault on the system and to give visible indication of the failed arrester. The thermal explode disconnectors meet the standard of IEC60099-4.
Arrester Monitor
The arrester online monitor (also known as arrester leakage current and action recorder) is an instrument used in conjunction with zinc oxide arresters in high-voltage AC power systems. The instrument is connected in series in the surge arrester grounding circuit. The mA meter in the monitor is used to monitor the leakage current (peak value) through the arrester under the operating voltage, which can determine whether the arrester is damp and whether the components are abnormal; the action counter records the number of overvoltage actions of the arrester.
BMC Plastic Bracket
BMC Plastic Bracket is made of BMC material, which has the characteristics of high insulation, chemical resistance, high fire resistance, good water resistance, light weight, high strength, aging resistance, and UV resistance, etc.
Station Type Surge Arrester 108KV 10kA
The world's most sophisticated over-voltage protection is the zinc oxide surge arrester. Because zinc oxide arrester is mostly used to manufacture the resistor disc of the core component. This product's prescription significantly enhances the resistor disc's volt-ampere characteristics and boosts its through-current capability at over-voltage in comparison to the traditional silicon carbide arrester, resulting in a radical local shift in the arresters' characteristics.
- Model YH10WZ-108C3850
Station Type Surge Arrester 48KV 10kA with round base
Zinc oxide arrester is the current international advanced overvoltage protector. Because its core component adopts zinc oxide resistance sheet; compared with the traditional silicon carbide arrester, the volt-ampere characteristics of the arrester are improved, and the overvoltage current capacity is improved, thus bringing about fundamental changes in the characteristics of the arrester.
When the arrester is under normal operating voltage, the current flowing through the arrester is only microampere. When subjected to overvoltage, due to the nonlinearity of the zinc oxide resistor, the current flowing through the arrester instantly reaches thousands of amperes. The arrester is in the conducting state, release overvoltage energy, thus effectively limiting the damage of overvoltage to power transmission and transformation equipment.
Electrical equipment in AC power systems is shielded from operating overvoltage damage and atmospheric overvoltage by Station Type Surge Arrester 48KV 10kA.
- Model YH10WZ-48C1280
Station Type Surge Arrester 36KV 10kA
The most advanced worldwide overvoltage protection available today is the zinc oxide arrester. When compared to a traditional silicon carbide arrester, the arrester's volt-ampere characteristics and overvoltage current capacity are enhanced due to the adoption of zinc oxide resistance sheet as its core component. This results in significant modifications to the arrester's characteristics.
When the arrester is under normal operating voltage, the current flowing through the arrester is only microampere. When subjected to overvoltage, due to the nonlinearity of the zinc oxide resistor, the current flowing through the arrester instantly reaches thousands of amperes. The arrester is in the conducting state, release overvoltage energy, thus effectively limiting the damage of overvoltage to power transmission and transformation equipment.
Station Type Surge Arrester 36KV 10kA is used to protect electrical equipment in AC power systems from atmospheric overvoltage and operating overvoltage damage.
- Model YH10WZ-36C1030
Station Type Surge Arrester 30KV 10kA
The zinc oxide surge arrester is the most advanced over-voltage protector in the world. Due to make the resistor disc of core component mainly adopt zinc oxide arrester. Compared with the conventional silicon carbide arrester, this prescription of the product improves greatly the volt-ampere characteristics of the resistor disc and increase through current capability at over-voltage so as to bring a rad local-changes for the characteristics of the arresters.
- Model YH10WZ-30C1080
48KV 10kA Polymer Lightning Arrester
Transformers and other equipment in station and distribution systems are shielded from atmospheric (particularly lightning effects) and operational circumstances by M.V. Polymer Lightning Arresters.
oxides of metals Gapless lightning arresters are made to guard against potential harm during ordinary energy system surges, but they don't affect energy systems when operating at normal voltage. Due to the non-linear properties of metal-oxide varistors between the voltage and current scales, gapless arresters have this unique feature. When compared to silicon carbide lightning arresters, the non-linear feature is significantly higher.
- Model YH10W-48C1500