Lw8-40.5 630A 1250A Outdoor 3 Pole Mounted Outdoor Sulfur Hexafluoride Circuit Breaker

• Breaking Capacity: 25ka, 30ka, 31.5ka, 35ka
• Operation: Manual Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: ACB
• Model NO.: LW8-40.5
• Poles Number: 1
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker
• Certification: VDE, ISO9001-2000, ISO9001:2008
• Product Name: Lw8-35
• Rated Current: 1250
• Application: Electric Power Transmission
• MOQ: 1 Piece
• Rated Voltage: 40.5
• Trademark: GGAOE
• Origin: Zhejiang, China
• HS Code: 7201500010
• Production Capacity: 100000 Piece/Pieces Per Month

Product Description

Product Description

 

overview

The product has excellent breaking performance. It adopts compressed air arc chamber with long electric life. It can continuously break 40ka short circuit current for 20 times underrated voltage without maintenance or replacement of sulfur hexachloride gas. It has high mechanical reliability and mechanical life of more than 10000 times. It can be operated frequently; Each set can be equipped with 12 current transformers for users to choose. The product adopts a new type of MKZMSF6 pointer densimeter, and the reading of the pressure gauge is not affected by the temperature change, so it is easy to use
This type of circuit breaker is a three-phase AC50 Hz outdoor high-voltage electrical equipment, which is suitable for the control and protection of 40.5 kV power distribution system. It can also be used for connecting circuit breaker and switching capacitor bank. This product is equipped with CT14 spring machine. The circuit breaker meets the requirements of national standaroGB1984-1989 "AC high voltage circuit breaker" and IEC 56, IEC 62271-100 "high voltage AC circuit breaker".

 

Project			Unit	Parameter
Rated voltage			kV	24	36	40.5
Rated insulation level	Lightning impulse withstand	kV	150	170	210*/215(fracture)185
						voltage (full wave peak)
		Power frequency withstand	kV	65	75	95
		voltage (1 minute)
Rated current			A	1250/1600/2000/2500
Mechanical life			time	10000
SF6 gas rated pressure (25 gauge pressure)			MPa	0.45
Blocking pressure (time gauge pressure)			Mpa	0.4
Maximum 4 ºC ambient temperature			ºC	-30
Rated short circuit breaking current			kA	20/25/31.5/40
Rated short circuit making current (peak value)			kA	50/63/80/100
Rated short time withstand current (thermal stability current)			kA	20/25/31.5/40
Rated peak withstand current (dynamic stability current)			kA	50/63/80/100
Rated out of step breaking current			kA	50/63/80/100
Rated short circuit duration			s	4
Closing time (at rated operating voltage)			ms	≤80	≤80	≤100
Opening time (under rated operating voltage)			ms	≤65	≤65	≤70
Rated operating sequence				0-0.3s-CO-180s-CO
Rated switching current of single capacitor bank			A	400
Annual air leakage rate			%/year	≤1
Water content of SF6 gas (at 20 ºC)			PPm(V/V)	≤150
Rated operating voltage of ct14 spring operating mechanism			V	DC:110,220 AC; 110, 220,380
Closing coil and breaking coil voltage			V	DC:110,220 AC; 110, 220,380
Voltage of energy storage motor			V	AC:220 DC:220
Closing speed			m/s	3.2 ± 0.2	3.2 ± 0.2	3.2 ± 0.2
Opening speed			m/s	3.4±0.2	3.4±0.2	3.4±0.2
Weight of sulfur hexafluoride gas			kg	7-8
Weight of circuit breaker (including operating mechanism)			kg	800/900/1400

Ordering Instructions:

The following technical information should be provided when placing an order: Main wiring scheme number, purpose and single line system diagram, rated voltage and rated current rated short-circuit breaking current/distribution room layout plan and arrangement and configuration diagram of switchgear;
Requirements for control measurement and protection functions of switchgear, as well as requirements and schematic diagrams for other interlocking and automatic devices;
The models specifications and quantities of the main electrical components inside the switchgear;
When the switchgear is used in special environmental conditions; detailed instructions should be provided when placing an order;

Felds of Application

Company Profile

Certifications

Delivery

FAQ

Q:what's your major products?
A: oil immersed transformer, dry type transformer, Transformer Substation, High and Low Voltage Switchgear

Q: Can your product be customized?
A: Considering differences in voltage, frequency and other special transformer product in different countries and regions, our product can be customized according to your requirements.

Q: When can I get the price?
A:Usually we quote within 24 hours after we get your inquiry.

Q: What about lead or shipping time?
A: The lead time depends on the quantity you ordered, generally within 15 days upon receipt of advance payment.

Q: What is the price of shipping?
A: Depending upon the port of delivery, prices varies.

Q: Do you offer guarantee for the products?
A: Yes. We offer at least one years guarantee for all of our transformers.

Q: Your Advantage?
A: 15 years experience, Advanced production equipment, Stable quality, Fast delivery, Professional & good & Prompt service. Also some free parts can be provided for you.