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Lw36-126/3150-40 Sf6 Series High-Voltage Circuit Breaker

SummaryThe LW36-145/3150-40 self powered AC high-voltage sulfur hexafluoride circuit breaker is an outdoor product suitable for use in AC 50HB power grids with a maximum voltage of 145kV in areas with an altitude not exceeding 3000 meters, an ambient temperature not lower than -40P, and a pollution ......Keywords:Lw36-126/3150-40 Sf6 Series High-Voltage Circuit Breaker, Six Sulfur Hexafluoride Circuit Breaker, Sf6

Product Description

Summary
The LW36-145/3150-40 self powered AC high-voltage sulfur hexafluoride circuit breaker is an outdoor product suitable for use in AC 50HB power grids with a maximum voltage of 145kV in areas with an altitude not exceeding 3000 meters, an ambient temperature not lower than -40P, and a pollution level not higher than IV. It is used to cut off rated current, fault current, or conversion lines, achieve control and protection of the power system, and can also be used as a contact circuit breaker
This product uses SF6 gas as the arc extinguishing and insulation medium, adopts the most advanced self energy arc extinguishing technology in the world, and is equipped with a new type of spring operating mechanism. It has the characteristics of long electrical life, low operating power, low noise, and high reliability. Its structure is simple, small in size, and long without 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 characteristics
The circuit breaker adopts a three-phase ceramic pillar single break structure, with a spring operated mechanism for the three phases. It is centrally arranged and interconnected with the three phases, resulting in a novel and exquisite appearance The circuit breaker uses SF6 gas as the insulation and arc extinguishing medium. During operation, the three poles of the circuit breaker are connected to SF6 gas, and a pointer type density relay is used to monitor its pressure and density progress Due to the use of self powered arc extinguishing principle and optimized design in the circuit breaker motion system, the mechanical efficiency has been effectively improved and the operating power has been minimized to the greatest extent possible;
Excellent breaking performance and long electrical lifespan;
The installation chassis and support are made of high-quality steel plates that are bent as a whole, and the surface treatment is all hot-dip galvanized. All exposed fasteners are made of high-strength materials and hot-dip galvanized, or use stainless steel standard parts. The outer shell of the mechanism box is made of stainless steel material, so the product has excellent corrosion resistance;
High mechanical reliability, capable of frequent operation;
Due to the inherent high insulation strength of sulfur hexafluoride gas and the use of optimal contact movement in circuit breakers, there is no reignition of capacitive current during circuit breaker breaking;
The external insulation level is high, and the external insulation is designed with a large creepage distance. The creepage distance is N31mm/kV, and the anti pollution performance is excellent Can operate safely even in harsh environments;
Strong current carrying capacity: Conduct a temperature rise test at 1.2 times the rated current of 3150A, which is 3780A1s, and there is still a large margin for temperature rise at each point;
The overall appearance structure of the product is compact, easy to install and debug on site, and the maintenance workload is small

technical parameter Main technical parameters of circuit breaker			Table 1
serial number 1 1	Name: Rated Voltage	unit kV	parameter LW36-126KV
2	Insulation level	kV	See Table 2.
	rated current	Hz	50
4	Rated current	A	3150
5	rated current	kA	40
6	Rated short-time withstand current	kA	40
7	Rated peak withstand current	kA	100
8	rated short-circuit duration	s	3
9	Rated short-circuit closing current (peak)	kA	100
10	Short-line fault breaking current	kA	36/30
11	Rated line charging breaking current	A	31.5
12	Rated out-of-step breaking current	kA	10
13	Cumulative number of interruptions under rated short-circuit breaking current	times	20
14	first pole opening factor		1.5
15	SF6 gas pressure (20 ° C)	MPa	0.5
16	Rated voltage of power supply for control circuit and auxiliary circuit		DC220V DC110V
17	rated operation sequence		points-0.3s-combined points-180s-combined points
18	mechanical characteristics		See Table 5.
	Rated main circuit resistance	M Q	W55
20	Circuit breaker mechanical durability	times	10000
	Horizontal and vertical FshA	N	1250
21	Terminal block static tension, horizontal horizontal FshB	N	750
	Vertical direction FtVm	N	1000
22	SF6Annual gas leakage rate	%	W1
23	SF6Gas moisture content (V/V)	ppm	w150±4
24	Contact travel	mm	150 + 4
25	Contact contact travel	mm	25

Order Instructions
Circuit breaker model, specification;
Rated electrical parameters (voltage, current, breaking current, etc.)
Use environmental conditions (ambient temperature, altitude, environmental pollution level)
Rated control circuit electrical parameters (energy storage motor rated voltage, opening coil rated voltage);
The name and quantity of spare parts, special equipment and tools required (to be ordered separately); the wiring direction of the terminal at one time.

FAQ

Q: Are you a factory or a trading company?
A: We are a factory with a 10 year production and sales history in AC/DC power supply, uninterruptible power supply. We warmly welcome your visit.

Q: What is the delivery time?
A: Generally, the delivery time is between 7-30 days after receiving payment from the customer.
Accurate information depends on the product and quantity, and we can further communicate on this.

Q: Do you have a minimum order quantity requirement?
A: The minimum order quantity for most products is 1 set. The minimum order quantity for individual UPS is 10

Q: How long is your warranty period?
A: We provide customers with a 2-year warranty and a 1-year warranty.

Q: Can you provide customized services?
A: Yes. Since 20014, we have been involved in OEM and ODM projects.
So that we can provide professional customized services for our customers.

Q: Do you have after-sales service?
A: Yes, we have an after-sales service team.
Our after-sales engineers can provide support and guidance through video or phone when needed.

Q: Do you conduct testing after completing production?
A: Yes, our production engineer team will conduct testing upon completion of the goods, and we will provide the testing information to customers for reference before delivery.