12kV drop fuse

SSOC□ Single-column series 12kV outdoor high-voltage AC drop fuse is an overload protection device, which is installed on the high-voltage side of distribution transformers or on the poles of distribution lines, and is used for short-circuit and overload protection of transformers and lines, as well as for dividing and closing load currents. The drop fuse adopts single-column insulation and consists of an insulating porcelain bottle (or silicone rubber), a conductive structure body and an arc extinguishing tube. The static contact is installed at both ends of the cast copper bracket, and the moving contact is installed at both ends of the fuse tube. The fuse tube consists of an arc extinguishing tube and an epoxy glass cloth tube in the inner layer. The product has the advantages of flexible application, excellent characteristics, easy installation, long maintenance-free operation and long service life.

Key words:

12kV drop fuse

Product Description

SSOC1-12 drop fuse

SSOC5-12 drop fuse SSOC3-12 drop fuse (load type) SSOC7-12 drop fuse (load type)

 

  • According to standards and scope of application

The design and test of SSOC □ single column series outdoor high voltage AC drop fuse meet the requirements of the following standards:

GB 311.1-2012

Insulation coordination-Part 1: Definitions, principles and rules

GB/T 11022-2011

Common technical requirements for high-voltage switchgear and controlgear standards

GB/T 15166.3-2008

High-voltage a.c. fuses-Part 3: Jet fuses

DL/T 593-2006

Common technical requirements for high-voltage switchgear and controlgear standards

DL/T 640-1997

Technical conditions for ordering outdoor AC high-voltage drop-out fuses and fuse elements

SSOC□ single-column series drop fuse is the most commonly used short-circuit protection switch for branch lines and distribution transformers of 12kV distribution lines. It has the characteristics of economy, convenient operation and strong adaptability to outdoor environment. It is widely used in the primary side of 12kV distribution lines and distribution transformers for protection and equipment switching and cutting operations.

 

Use of environmental conditions

 

1. Ambient temperature: not higher than 70 ℃, not lower than -40 ℃;

2. Altitude: not more than 2000m;

3. Power frequency: 50/60Hz;

4. Earthquake intensity: 8 degrees and below;

5. Maximum wind speed: 35 m/s.

 

Product model meaning and its selection

 

 

Injection mode

insulating medium

Hardware

Arc extinguishing cover

Product design serial number

single jet

 

 

 

porcelain vase

 

hot galvanizing

 

Without arc extinguishing cover

SSOC1

With arc extinguishing cover

SSOC3

Silicone rubber

 

hot galvanizing

 

Without arc extinguishing cover

SSOC5

With arc extinguishing cover

SSOC7

 

Technical parameters

Project

Unit

Parameter Value

Rated operating voltage

kV

12

Rated continuous operating current

A

100, 200

Rated frequency

Hz

50/60

Rated current of fuse base

A

100, 200

Rated short-circuit breaking current

kA

12.5kA

Power frequency withstand voltage (dry test/wet test)

kV

60/50

Rated lightning impulse voltage (relative to ground/isolation fracture)

kV

125/150

Creepage distance

porcelain vase

mm

372

 

composite silicone rubber

 

40

 

non-load type

 

2000 (continuous opening and closing)

 

Load type

 

500 (continuous opening and closing)

Altitude

m

2000

Ambient temperature

-40 ~  70

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