Chinese Manufacture High Voltage Dead Tank 3150A 145KV SF6 Circuit Breaker

FOB Reference Price:Get Latest Price
US $5,000-20,000 / Piece | 1 Piece/Pieces (Min. Order)
Supply Ability:
10000 Piece/Pieces per Year
Report Suspicious Activity
Quick Details
Place of Origin:
Beijing, China (Mainland)
Brand Name:
Model Number:
High Voltage
Poles Number:
Rated voltage:
Rated frequency:
Rated current:
Product name:
SF6 Circuit Breaker
Packaging & Delivery
Packaging Details
Wooden case; One suit, one case
Delivery Time
Shipped in 30 days after payment
Product Description

Chinese Manufacture High Voltage Dead Tank 3150A 145KV SF6 Circuit Breaker

1.Brief Introduction

Type LW24- /T outdoor H.V. A.C. dead tank SF6 gas circuit breaker is a new kind of circuit breaker with self-blast interrupter and spring operating mechanism, developed by Xi’an XD High Voltage Apparatus Co.,Ltd. (former Xi’an High Voltage Apparatus Works), on the basis of technology of product imported from Mitsubishi, Japan.The latest achieve—arc extinguishing principle of gas-blast pressure adapting with breaking-current is employed,by which most of energy required for breaking rated short-circuit current are acquired from arc itself.Therefore, the demand for operating power is reduced significantly. The three pole interrupters are placed inside three metal enclosures respectively. The circuit breaker can be mechanically three-phase gang-operated. Both remote electrical control and local manual control can be realized. Type CT20-II spring operating mechanism, provided with the product, is a kind of mechanism with low operating power, minimum maintenance work needed and high reliability. The product reaches international advanced level in the respect of main technical performance.

LW24- 145/T passed the prototype appraisal by former Machinery Industry Department,Electricial Power Industry Department and National Science & Technology Committee in December 2008.

2.Normal Service Condition


2.2.Humidity monthly:≤90%
2.3.Max .wind velocity:≤35m/s
2.4.Pollution class:IV class
2.5.Ambient air temperature:-35℃~40℃(It’s satisfied under condition of -40℃ in heavy cold area)
2.6.Max .temperature difference daily: 25K
2.7.Earthquake withstand density:9 degree
2.8.Ice coating: ≤10mm
2.9.Max. radiance from sun: 1000 W/m2
Note: When product is used under the condition out of above range, user and manufacturer shall consult to confirm.


4.Main Features and Advantages:

4.1.Thanks to excellent electrical field design and its perfect coordination with motion characteristics, breaking capacitive current may be without restrike. As for special breaker for switching capacitive load,back-to-back capacitor  bank breaking current may be up to 1500~2000A.

4.2.Gas-flowing characteristics is so appropriate that its breaking inductive current has no chopping overvoltage. As
for special breaker for switching inductive load, shunt reactor switching current may be up to 1500~2000A.

4.3. When breaking rated short-circuit current and any fault current,there are reliable breaking perfor mances and
abundant arcing time differential through application of arc-extinguishing principle of gas-blast pressure adapting
breaking current.

4.4.There are excellent insulation performances sand wide range of internal insulation margin.For 40.5kV product,the insulation level is corresponding to that of 72.5kV,which is used at decreased voltage.

4.5.Duration of rated short-time withstand current is as long as 4 seconds.

4.6.Due to high strength of outgoing porcelain and low gravity center of interrupter by horizontal configuration, the product has a high seismic-withstand performance with earthquake density of 9 degree.

4.7.The product is entirely provided with latest advanced type CT20 spring operating mechanism.So it has low
noise level,high mechanical reliability and mechanical three-phase gang-operation,and requires smaller space
occupied,compared to that of normal single-phase operated circuit breaker, specially suitable for urban power
networks and rural power networks retrofit projects.

4.8.After full routine test at factory,each circuit breaker is packed in a whole form with 0.05MPa SF6 gas filled in interrupter.Only some connection and re-fill of SF6 gas are needed on site,resulting conve nient commission. Maintenance work is minimized,which only needs to check SF6 gas gauge and apply lubricant.

4.9.The frame is such designed that the products are specially suitable for retrofit projects of replace ment of bulkoil
circuit breaker,such as type DW8-35、DW13-35 and DW2-35,etc,bulk oil circuit breakers, without foundation
reconstruction. Intermediate frame on support of type LW24-40.5 SF6 gas dead-tank circuit breaker is specially
designed so that the product can be installed directly on original foundation of former bulk-oil circuit breaker.Thus the
work for retrofit engineering is reduced greatly and project cycle becomes short.

The Excellences

1. Excellent Manufacturing

1.1The Workshop and Equipment

The workshop is clean, wide and professional. There are quantities sets of world-advanced special manufacturing and testing equipments. including automatic silicon steel sheet longitudinal-transverse cutting line, automatic electromagnetic wire continuous extrusion unit and alrge kerosene vapor phase drying system.

1.2 The Technical Engineers

The company has invited experts an dengineering technicians from large and midium-sized transformer factories as its managerial an dtechnical personnel. All production and manufacture procedures are under strict control.

2. Excellent Quality

2.1 The Advanced Technology

With Sillcon Gra Phics Indk work station and a complete set of specialized design soft ware introduced from USA, all design procedures of the product like temperature rise, field-strength computation are made by computers.

---- 1200kv lightening pulse generator

2.2 The Automatic Monitering System

The company is always persuiting for the principle of "development by technology and creating famous brand by quality".

Circuit Breaker  microcomputer automatic test monitering systems.                                                                                         -----

2.3 The Certificates

The company conducts all-course management in acccordance to ISO9001 quality system and have obtained registration certificates .

3. Excellent Management

3.1 The 6s Management

The company has been applied the "6s management system"(  to daily operation and it has make a great contribution to our development .



3.2 The Employee Team

We are promoting our enterprise to be a team of standardization and modernization as well as scientific management.

Now we have a team of high cohesion and loyalty. Each of them is played out enthusiasm and creativity, which providing a continuous motivation for enterprise's development.

4. Excellent Services

4.1 Customer Supreme

We firmly believe that good service is the extention of the products. We always treat our clients with passion and patience. "Quality first, customer supreme“ is our principle that we will follow on forever.

4.2 We provide you free fee for technical consultation and instruction.

4.3 We give you 24-hour quick response.

4.4 We can arrange experienced technicians to help you install the equipments and train your staff on site.

Previous Cases

We have been worked in electric industry for nearly 20 years.Our products are sold to South America, North America, South-east Asia and Africa, and we have won lots of cooperations and recognitions for our best price and top quality! Meanwhile we have built a long cooperative relationship with the clients from all over the world!

Our Company

Beijing Daelim Green EP Tech Co., Ltd. LOCATED IN: Beijing of China

SPECIALIZED IN: Electrical equipment
PRODUCTION MAINLY: Power transformer, current transformer, potential transformer, vacuum & SF6 circuit breaker, load break switch, disconnector, switchgear panel, power plant, transmission line equipment.
PRODUCTS ARE SOLD TO: Southeast Asia, the Middle East, Europe, Africa, North America and South America.
More information please search for

Sales Records
Packing & Delivery

The circuit breakers are prepared and waiting for packaging.

One suit, one case. The circuit breaker is packed in a hard wooden case.

The circuit breaker on the truck is to the way of delivery port.

The circuit breaker is transfered onto a ship.

The circuit breaker is on a cargo to your country.

Raiway transportation.( You can choose the transportation way you want.)


Q: How long is your delivery time?

A: Generally it is 60 days if the goods are in stock. or it is 80 days if the goods are not in stock, it is according to quantity.

Q: What is your terms of payment ?

A: Payment<=10000USD, 100% in advance. Payment>=10000USD, 30% T/T in advance ,balance before shippment.

Q:Why choice  Daelim?

A:After compare quality,delivery and price you will find out answer

If you have another question, pls feel free to contact us as below:

Trade Manager: Zoe