Detailed Product Description

ZW58-12/T630-20 type outdoor post-mounted high-voltage vacuum circuit breaker (hereinafter referred to as circuit breaker) is a kind of outdoor three-phase high-voltage AC switchgear with rated voltage of 10KV and rated frequency of 50Hz mainly used for breaking current, closing load current, overload current and short-circuit current in distribution network, which is applicable to the protection and control over the operation of substation, mines & other enterprises, and urban & rural power network, especially applicable to location with frequent operation requirement and automatization distribution of urban & rural power network.

 It uses the latest insulation solid closure technology in the world and has excellent ability to stand outdoor environment conditions. It is widely used by completely remove the incompatibility between miniaturization of vacuum interrupter and insulation requirement. Moreover, it has many advantages such as small size, light weight, beautiful appearance, free of maintenance and intelligent distribution.

II. Model and Description

-SDS,D

-SDOperation Mechanism S: by hand, D by motor

-20KA

-20 Rated Short-Circuit Breaking Current (KA)

630A

630 Rated Current (A)

T

T Spring Operation Mechanism

G

G Optional Disconnector

-12KV

-12 Rated Voltage (KV)

58

58 Design Program

W

W Outdoor

Z

Z Vacuum

III. Reference Standard

3.1 GB1984-2003

3.1 GB1984-2003 High-Voltage AC Circuit Breaker

3.2 GB/T11022-1999

 3.2 GB/T11022-1999 Common Specifications for High-Voltage Switch Gear and Control Gear Standards

3.3 GB1985-2004

3.3 GB1985-2004 AC High-Voltage Disconnectors and Earthing Switches

IV. Service Conditions

4.11000mm;

4.1 Altitude: ≤1000mm

4.2-40~+4025

 4.2 Ambient Temperature: -40~+40; Daily Humidity Difference: Daily  Change: 25 

4.38

4.3 Seismic Intensity: ≤8 degree

4.435m/s

4.4 Wind Speed: ≤35m/s;

4.5.

 4.5 No inflammable, explosive hazard, chemical corrosive and intensive vibration location in installation site.

Rated voltagekV:12;15Rated currentA630

Power frequency resisting voltage(kV)42

Lighting impulse resisting voltage(kV)75

Rated short-circuit breaking current

(Value of the current in amperes)(kA)20;25

Rated short-circuit controlling current(Peak)50;63

Rated machine stabing current(Maximum)(kA)50;63

4S heat-stabling current(Maximum)(kA)20;25

Times of rated short-circuit breaking current  30

Mechanical life(times) 10000

Automatic striking and grinding thickness(mm)2

Current seperated and rated(A)5

Gross weight(kg)40-50

Rated voltagekV:12;15Rated currentA630

Power frequency resisting voltage(kV)42

Lighting impulse resisting voltage(kV)75

Rated short-circuit breaking current

(Value of the current in amperes)(kA)20;25

Rated short-circuit controlling current(Peak)50;63

Rated machine stabing current(Maximum)(kA)50;63

4S heat-stabling current(Maximum)(kA)20;25

Times of rated short-circuit breaking current  30

Mechanical life(times) 10000

Automatic striking and grinding thickness(mm)2

Current seperated and rated(A)5

Gross weight(kg)40-50