Outstanding Features Make You Stand Out
We play extreme caution to quality and utmost attention to detail, which makes our products so perfect.
We play extreme caution to quality and utmost attention to detail, which makes our products so perfect.
The main circuit unit and running product are coherent in interchangeability.
The operating mechanism can be separated from the whole circuit breaker for convenient and easy maintenance and fix.
No need of adjustment of driving unit; long-acting lubricating, reliable corrosion resistance, and high mechanical stability make low maintenance possible.
We apply German lubricating grease boasting lower starting torsion, stronger anti-aging and oxidation resistance.
Utilizing zinc-nickel alloy plating line with a German process to make sure our corrosion resistance is 5 to 7 times stronger than ordinary zinc-plating process.
This product can easily realize diverse arrangements and combinations to meet functions like expandability and control.
The permanent magnet operating mechanism and the vacuum interrupter of the HX03-12/M vacuum circuit breaker adopt front and rear arrangement,. The main conductive circuit is a floor-standing structure. The upper and lower outlet seats and the vacuum interrupter are installed in a tubular insulating cylinder. Inside. The insulating cylinder is made of epoxy resin by APG process.This structure can prevent dust accumulation on the surface of the vacuum arcing chamber and prevent it from being damaged by external factors. It can ensure that the product still has good insulation performance in the humid and hot environment and serious pollution.
Permanent magnet vacuum circuit breaker for indoor installation, air insulation, used to open and close various of different type of power load,Applicable to the construction and renovation of power grids such as urban nets, rural nets, mines and railways, especially the products absorb advanced technology and technology at home and abroad, with intelligent, high reliability, long life, maintenance-free and other characteristics. No pollution to the surrounding environment when used and it’s a green product.
Table 1. Technical parameters
| No | Item | Unit | Specification | ||||||
| 1 | Rated Voltage | kV | 12 | ||||||
| 2 | Rated Current | A | 630 | 1000、1250 | 1600、2000、2500、3150 | ||||
| 3 | Rated short circuit breaking current | kA | 20 | 25 | 20 | 25 | 31.5 | 31.5 | 40 |
| 4 | Rated peak withstand current | kA | 50 | 63 | 50 | 63 | 80 | 80 | 100 |
| 5 | Rated short-time withstand current | kA | 20 | 25 | 20 | 25 | 31.5 | 31.5 | 40 |
| 6 | Rated short circuit closing current | kA | 25 | 63 | 25 | 63 | 80 | 80 | 100 |
| 7 | Breaking times of short circuit current | times | 50 | 30 | |||||
| 8 | Rated operating sequence | O-0.3s-CO-180s-CO，O-180s-CO-180s-CO（40kA） | |||||||
| 9 | Mechanical life | times | 30000(small current) 20000(heavy current) | ||||||
| 10 | Breaking times of rated current | times | 30000(small current) 20000(heavy current) | ||||||
| 11 | Rated lightning impulse withstand voltage (full wave) | kV | 75 | ||||||
| 12 | Rated short-time power frequency withstand voltage | kV/min | 42 | ||||||
Table 2.Parameters of circuit breakers with capacitors
| No | Item | Unit | Specification |
| 1 | Travel of the contact | mm | 11±1 |
| 2 | Over-travel of the contact | mm | 3.5±0.5 |
| 3 | Closing speed | m/s | 0.6±0.2 |
| 4 | Opening speed | m/s | 1.1±0.3 |
| 5 | Contact closing bounce time | ms | ≤2，≤3(40kA) |
| 6 | Three-phase contact closing and opening synchronization | ms | ≤2 |
| 7 | Closing time | ms | ≤22 |
| 8 | Opening time | ms | ≤20 |
| 9 | Energy storage loop supply voltage | V | ∽110、∽220 |
| 10 | Energy storage loop current | A | ≤0.5（Before the capacitor is full），≤0.01（After the capacitor is full） |
| 11 | Energy storage time | s | ≤10，First charge time≥30 |
| 12 | Closing control voltage | V | ∽110、∽220 |
| 13 | Opening control voltage | V | ∽110、∽220 |
| 14 | Closing control current | A | 0.2 |
| 15 | Opening control current | A | 0.2 |
| 16 | Main loop resistance | μΩ | ≤60(630A)，≤45(1250A)，≤30(2000A above) |
| 17 | Phase distance | mm | 210，275(40kA) |
Table 3.Parameters of circuit breakers with capacitors
| No | Item | Unit | Specification |
| 1 | Travel of the contact | mm | 11±1 |
| 2 | Over-travel of the contact | mm | 3.5±0.5 |
| 3 | Closing speed | m/s | 0.6±0.2 |
| 4 | Opening speed | m/s | 1.1±0.3 |
| 5 | Contact closing bounce time | ms | ≤2，≤3(40kA) |
| 6 | Three-phase contact closing and opening synchronization | ms | ≤2 |
| 7 | Closing time | ms | ≤75 |
| 8 | Opening time | ms | ≤65 |
| 9 | Energy storage loop supply voltage | V | DC220～DC240V（From DC screen） |
| 10 | Energy storage circuit closing current | A | 35＜I＜55（Small current） |
| 11 | Energy storage circuit opening current | A | 10＜I＜20 |
| 12 | Energy storage circuit closing time | ms | ≤60 |
| 13 | Energy storage circuit opening time | ms | ≤25 |
| 14 | Closing control voltage | V | ∽110、∽220 |
| 15 | Opening control voltage | V | ∽110、∽220 |
| 16 | Closing control current | A | 0.2 |
| 17 | Opening control current | A | 0.2 |
| 18 | Main loop resistance | μΩ | ≤60(630A)，≤45(1250A)，≤30(2000A the above) |
| 19 | Phase distance | mm | 210，275(40kA) |
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Since 2011, Liyond has been dedicated to designing and manufacturing reliable and superior switchgear components, whilst providing impactful solution to customers all over the world.
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