LW36-126
Outdoor high voltage AC sulfur hexafluoride circuit breaker
Product Details
Overview
LW36-126/3150-40 self-energized AC high-voltage sulfur hexafluoride circuit breaker is an outdoor product, suitable for AC 50Hz, high voltage 145kV power grids with an altitude of no more than 3000 meters, an ambient temperature of no less than -40℃, and a pollution level of no more than IV. It is used to cut off the rated current, fault current or conversion line, and realize the 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 international self-energized arc extinguishing technology, 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. It is the most reliable product in high-altitude areas or 132kV power systems, and can replace imported products of the same type.
Structural features
The circuit breaker adopts a three-phase porcelain column single-break structure, and the three phases are equipped with a spring operating mechanism, which is centrally arranged and three-phase driven, so the appearance is novel and exquisite. The circuit breaker uses SF6 gas as the insulation and arc extinguishing medium. During operation, the three-pole SF6 gas of the circuit breaker is connected, and the pressure and density progress are monitored by a pointer-type density relay. 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 reduced;
Excellent breaking performance and long electrical life;
The mounting frame and support are made of high-quality steel plates that are bent as a whole. The surface treatment is all hot-dip galvanizing. All exposed fasteners are made of high-strength materials and hot-dip galvanized, or stainless steel standard parts are used. The mechanism box shell is made of stainless steel, so 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 contact movement adopted by 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, the creepage ratio distance is> 31mm/kV, and the dirt resistance performance is excellent. It can also operate safely in harsh environments;
Strong current-carrying capacity: the temperature rise test is carried out at 1.2 times the rated current of 3150A, that is, 3780A, and there is still a large margin for the temperature rise at each point;
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 (rated voltage of energy storage motor, rated voltage of opening and closing coil);
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.
LW36-126/3150-40 self-energized AC high-voltage sulfur hexafluoride circuit breaker is an outdoor product, suitable for AC 50Hz, high voltage 145kV power grids with an altitude of no more than 3000 meters, an ambient temperature of no less than -40℃, and a pollution level of no more than IV. It is used to cut off the rated current, fault current or conversion line, and realize the 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 international self-energized arc extinguishing technology, 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. It is the most reliable product in high-altitude areas or 132kV power systems, and can replace imported products of the same type.
Structural features
The circuit breaker adopts a three-phase porcelain column single-break structure, and the three phases are equipped with a spring operating mechanism, which is centrally arranged and three-phase driven, so the appearance is novel and exquisite. The circuit breaker uses SF6 gas as the insulation and arc extinguishing medium. During operation, the three-pole SF6 gas of the circuit breaker is connected, and the pressure and density progress are monitored by a pointer-type density relay. 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 reduced;
Excellent breaking performance and long electrical life;
The mounting frame and support are made of high-quality steel plates that are bent as a whole. The surface treatment is all hot-dip galvanizing. All exposed fasteners are made of high-strength materials and hot-dip galvanized, or stainless steel standard parts are used. The mechanism box shell is made of stainless steel, so 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 contact movement adopted by 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, the creepage ratio distance is> 31mm/kV, and the dirt resistance performance is excellent. It can also operate safely in harsh environments;
Strong current-carrying capacity: the temperature rise test is carried out at 1.2 times the rated current of 3150A, that is, 3780A, and there is still a large margin for the temperature rise at each point;
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 (rated voltage of energy storage motor, rated voltage of opening and closing coil);
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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