ZW32-12 outdoor pole-mounted high-voltage vacuum circuit breaker

The main purpose of outdoor pole-mounted high-voltage vacuum circuit breaker
Outdoor pole-mounted high-voltage vacuum circuit breaker, hereinafter referred to as circuit breaker, is an outdoor power distribution equipment with rated voltage three-phase AC. It is mainly used for switching on and off the load current, overload current and short-circuit current in the power system of the distribution network. It is suitable for protection and control in substations and mining enterprise power distribution systems. It is more suitable for rural power grids and places with frequent operations, and is especially suitable for the needs of urban and rural power grid transformation.
This installation and operation manual stipulates the main technical parameters, product structure, and principles and methods of operation, installation, use and maintenance of the circuit breaker.
Quoted standards
"AC high-voltage fuses"
/"Common technical requirements for high-voltage switchgear and control equipment standards"
Insulation coordination of high-voltage power transmission and transformation equipment"
"Mechanical test of high-voltage switchgear at normal temperature"
"Technical conditions for ordering indoor high-voltage vacuum circuit breakers"
Environmental conditions for use
The altitude does not exceed meters
Ambient air Temperature ℃℃
Wind speed is not greater than/
Pollution level IV
The installation site is free of flammable substances, explosion hazards and chemical corrosion
Seismic intensity does not exceed level
Main features
The circuit breaker adopts a three-phase pillar structure, which has the characteristics of stable and reliable breaking performance, no danger of combustion and explosion, maintenance-free, small size, light weight and long service life.
The circuit breaker adopts a fully enclosed structure with good sealing performance, which helps to improve moisture-proof and condensation-proof performance, and is suitable for use in high temperature and humid areas.
The three-phase pillars and current transformers are insulated with imported outdoor epoxy resin solids, which are resistant to high and low temperatures, ultraviolet rays and aging.
The operating mechanism adopts a miniaturized spring operating mechanism, and the opening and closing energy consumption is low. The transmission of the mechanism adopts direct drive mode. The opening and closing parts are small and the reliability is high. The operating mechanism is placed in a sealed mechanism box, which solves the problem of mechanism corrosion and improves the reliability of the mechanism.
The opening and closing operations of the circuit breaker can be operated manually or electrically and remotely. It can be used with the controller to realize power distribution automation, and can also be used with the recloser controller to form a recloser.
The circuit breaker can be installed with two or three phases for automatic over-current tripping protection and intelligent controller for information analysis.
The weight of the circuit breaker is around.
Two technical parameters
Main technical parameters table
Table
Serial number
Name
Unit
Value
Rated voltage
Rated current
Rated frequency
Rated short-circuit breaking current
Rated peak withstand current
Rated short-time withstand current
Rated peak short-circuit closing current
Mechanical life
times
Number of rated current interruptions
times
Power frequency withstand voltage
Wet between phases to ground
Dry between phases to ground
Lightning impulse withstand voltage peak value
Rated short-circuit breaking current breaking times
Times
Rated operating sequence
Opening, opening and closing
Secondary circuit power frequency resistance Pressure
Weight
Mechanical characteristics are shown in the table
Table
Serial number
Name
Unit
Value
Contact spacing
Contact overtravel
Opening speed
Closing speed
Contact closing bounce time
Different phases of three-phase opening and closing
Center distance between phases
Opening time
Closing time
Each phase conductive circuit resistance
＜
Energy storage motor rated power
The transformation ratio of the current transformer is as follows
The current transformer can be installed according to the needs of the user.