LW25□-252
Outdoor high voltage AC sulfur hexafluoride circuit breaker
Product Details
Overview
LW□-252/4000-50 self-energized AC high-voltage sulfur hexafluoride circuit breaker is an outdoor product, suitable for AC 50Hz and 252kV power grids with an altitude of no more than 2000 meters, an ambient temperature of no less than -30℃, and a pollution level of no more than IV. It is used to cut off the rated current, fault current or conversion line to achieve control and protection of the power system. It can also be used as a connecting circuit breaker.
This product uses SF6 gas as the arc extinguishing and insulating medium, adopts the most advanced self-energized arc extinguishing technology in the world, and is equipped with a new spring operating mechanism. It has the characteristics of long electrical life, low operating power, low noise, and high reliability. It has a simple structure, small size, and a long maintenance cycle. In the current process of power equipment tending to be oil-free and large-capacity, it can completely replace imported products of the same type.
Structural features
The circuit breaker adopts a three-phase porcelain column single-break structure, each phase is equipped with a spring operating mechanism, and the three-phase electrical linkage, so the appearance is novel and exquisite. The circuit breaker uses SF6 gas as the insulation and arc extinguishing medium, and uses a pointer-type density relay to monitor its pressure and density progress. Due to the self-energy arc extinguishing principle and the optimized design in the circuit breaker motion system, the mechanical efficiency is effectively improved and the operating work is minimized;
Excellent breaking performance and long electrical life;
Each pole of the product is installed on a mechanism box, which is centrally installed on the ground foot. There is a spring operating mechanism and an electrical control unit in the box. The output rod of the mechanism is connected to the crank arm. The surface of the mechanism box bracket adopts hot-dip galvanizing process, the fasteners are hot-dip galvanized, and the mechanism box shell is made of stainless steel. Therefore, the product has excellent corrosion resistance. High mechanical reliability and can be operated frequently;
Due to the inherent high insulation strength of sulfur hexafluoride gas and the optimal contact movement of the circuit breaker, the circuit breaker breaks the capacitive current without reignition;
The external insulation level is high, the external insulation is designed with a large creepage distance, and the pollution resistance is excellent.
Strong current carrying capacity: Temperature rise test is carried out at 1.2 times of the rated current 4000A, and the temperature rise at each point still has a large margin;
The overall appearance and structure of the product are compact, and the on-site installation and commissioning are convenient, and the maintenance workload is small.
Ordering instructions
Circuit breaker model and specifications;
Rated electrical parameters (voltage, current, breaking current, etc.)
Usage environment conditions (ambient temperature, altitude, environmental pollution level)
Rated control circuit electrical parameters (energy storage motor rated voltage, opening and closing coil rated voltage); The name and quantity of spare parts, special equipment and tools required (need to be ordered separately);
The wiring direction of the primary upper terminal.
LW□-252/4000-50 self-energized AC high-voltage sulfur hexafluoride circuit breaker is an outdoor product, suitable for AC 50Hz and 252kV power grids with an altitude of no more than 2000 meters, an ambient temperature of no less than -30℃, and a pollution level of no more than IV. It is used to cut off the rated current, fault current or conversion line to achieve control and protection of the power system. It can also be used as a connecting circuit breaker.
This product uses SF6 gas as the arc extinguishing and insulating medium, adopts the most advanced self-energized arc extinguishing technology in the world, and is equipped with a new spring operating mechanism. It has the characteristics of long electrical life, low operating power, low noise, and high reliability. It has a simple structure, small size, and a long maintenance cycle. In the current process of power equipment tending to be oil-free and large-capacity, it can completely replace imported products of the same type.
Structural features
The circuit breaker adopts a three-phase porcelain column single-break structure, each phase is equipped with a spring operating mechanism, and the three-phase electrical linkage, so the appearance is novel and exquisite. The circuit breaker uses SF6 gas as the insulation and arc extinguishing medium, and uses a pointer-type density relay to monitor its pressure and density progress. Due to the self-energy arc extinguishing principle and the optimized design in the circuit breaker motion system, the mechanical efficiency is effectively improved and the operating work is minimized;
Excellent breaking performance and long electrical life;
Each pole of the product is installed on a mechanism box, which is centrally installed on the ground foot. There is a spring operating mechanism and an electrical control unit in the box. The output rod of the mechanism is connected to the crank arm. The surface of the mechanism box bracket adopts hot-dip galvanizing process, the fasteners are hot-dip galvanized, and the mechanism box shell is made of stainless steel. Therefore, the product has excellent corrosion resistance. High mechanical reliability and can be operated frequently;
Due to the inherent high insulation strength of sulfur hexafluoride gas and the optimal contact movement of the circuit breaker, the circuit breaker breaks the capacitive current without reignition;
The external insulation level is high, the external insulation is designed with a large creepage distance, and the pollution resistance is excellent.
Strong current carrying capacity: Temperature rise test is carried out at 1.2 times of the rated current 4000A, and the temperature rise at each point still has a large margin;
The overall appearance and structure of the product are compact, and the on-site installation and commissioning are convenient, and the maintenance workload is small.
Ordering instructions
Circuit breaker model and specifications;
Rated electrical parameters (voltage, current, breaking current, etc.)
Usage environment conditions (ambient temperature, altitude, environmental pollution level)
Rated control circuit electrical parameters (energy storage motor rated voltage, opening and closing coil rated voltage); The name and quantity of spare parts, special equipment and tools required (need to be ordered separately);
The wiring direction of the primary upper terminal.
Online Inquiry
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