en English

SN10-10 10kV Indoor Less Oil Circuit Breaker

10kV Indoor Less Oil Circuit Breaker

Additional information

Product Details:

SN10-10kV Indoor Less Oil Circuit Breaker

 

General Introduction

SN10-10 Series type indoor high voltage Less Oil circuit breaker is rated voltage 12kV, three-phase AC 50Hz Indoor high-voltage switchgear.

 

Working Conditons

Ambient temperature: not higher than +40 °C, not less than -15°C

Altitude: not exceed 1000m.

Relative humidity: daily average of not more than 95%, month average of not more than 90%.

Earthquake intensity: not more than ten.

No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration.

 

Technical Specification

NO Item Units parameters
1 Rated voltage KV 12
2 Rated Frequency HZ 50
3 Rated Current A 630.

1250

1600

2000

3150

4 Rated short-circuit breaking current KA 20 25 31.5
5 Rated short-circuit closing current (peak) KA 50 63 80
6 Rated short-circuit duration S 4
7 Rated short-circuit breaking current breaking number nos 50s
8 Rated operating sequence 0-0.3s-CO-180s-CO
9 Rated lightning impulse withstandvoltage kv 125
10 1min power frequency withstand voltage KV 65
11 Closing time ms ≤ 70
12 opening time ms ≤ 50
13 Mechanical life Times 20000
14 Rated Storage and operation voltage V AC DC 220/110
15 Breaking life ms ≤ 80
16 Storage life s ≤ 10

Adjust the parameters of mechanical properties:

No Item Unit Parameters
1 Contact distance mm 14±1
2 Contact Over-travel mm 3.5±1
3 Closing speed m/s 1.0±0.2
4 Opening speed m/s 1.3±0.2
5 Contact closing spring time ms ≤2
6 Rated contact pressure N 20KA(2400±200) 25KA (2400±200) 31.5KA(3100±200)
7 Three phase closing opening asynchrony ms ≤2

Outline Dimension

sn10 10 outdoor less oil circuit breaker sn10 10 outdoor less oil circuit breaker 1

 

Ask For A Quick Quote

We will contact you within 1 working day, please pay attention to the email with the suffix “@wolunele.com”