150kv 145kv 132kv Sf6 Circuit Breaker using the principle of self-energy arc extinguishing, the diameter and weight of the pressure cylinder are greatly reduced, and the operating work is reduced, making the use of a spring operating mechanism a reality. Each circuit breaker consists of three single-poles and three spring mechanisms mounted on three brackets, which can perform single-pole operation and three-pole electrical linkage. The spring operating mechanism is installed on the side of the bracket, and the electrical control system is placed in the mechanism box. The upper part of the single-pole circuit breaker body is a single-break arc extinguishing chamber, the middle is the pillar porcelain sleeve, and the lower part is used for sealing, opening springs and buffers.
Model Description
L :Sulfur Hexafluoride Circuit Breaker
W:Outdoor
30 :Design Number
126:Rated voltage:110kV、126kV、132kV、145kV、150kV
▢:Rated current:3150A
▢:Rated short-circuit breaking current:31.5kA、40kA
Working Environment:
◆Installation method: side-mounted, middle-mounted
◆Ambient air temperature: upper limit +40C, lower limit -30C; ;
◆Altitude: ≤2000m (if the altitude needs to be increased, the rated insulation level should be increased accordingly);
◆Wind pressure: no more than 700Pa (equivalent to wind speed of 34m/s);
◆Amplitude: earthquake intensity 8 degrees;
◆Contamination level: Class I;
◆Maximum daily temperature difference: no more than 25C.
Main Technical Parameters
Serial number | Parameter | Unit | Value | ||
LW30-126W/T3150-40 | LW30-126W/T4000-40(H) | ||||
1 | Applicable environment | Applicability in normal alpine regions | |||
2 | Rated voltage | kV | 110/126/132/145 | ||
3 | Rated frequency | Hz | 50(60) | ||
4 | Rated current | A | 3150 | ||
5 | first opening coefficient | 1.5 | |||
6 | Rated short-circuit breaking current Ik | kA | 40 /31.5 | ||
7 | Rated short-circuit making current (peak value) | kA | 100/ 80 | ||
8 | Rated short-circuit withstand current | kA | 40 /31.5 | ||
9 | Rated peak withstand current | kA | 100/ 80 | ||
10 | Rated short circuit duration | S | 4 | ||
11 | Rated out-of-step breaking current | kA | 10 /8 | ||
12 | Near zone fault breaking current | kA | 90% IK, 75% IK | ||
13 | Rated line charging switching current | A | 31.5 | ||
14 | Nominal Operation Sequence | 0-0.3S-C0-180S-C0 | |||
15 | Main circuit resistance | µΩ | ≤65 | ||
16 | Mechanical life | Second-rate | 6000 or 10000 | ||
17 | radio interference level | µV | ≤500 | ||
18 | Creepage distance | between fractures | mm | 3906/3150 | |
to the ground | kg | 3906/3150 |
Structure and Mounting Dimensions
Product Real Shot
Certifications
ln order to ensure the stability and reliability of product quality, we adhere to the international quality standard system and implement strict inspectionand monitoring of products. Our high standards are due to the pursuit of brand perfection, and many of our certifications are not only glory, but alsothe driving force for ourprogress.
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