ZIKAI® is China manufacturer & supplier who mainly produces Indoor High Voltage Vacuum Circuit Breaker with many years of experience. Hope to build business relationship with you.
High quality Indoor High Voltage Vacuum Circuit Breaker is offered by China manufacturer ZIKAI®. ZN85-40.5 series indoor high-voltage vacuum circuit breaker, designed for three-phase AC 50Hz, rated voltage 40.5kV power system, widely used in industrial and mining enterprises, power plants and substations, effectively perform the task of dividing load current, overload current and fault current. Through the innovative up-down layout design, the operating mechanism is cleverly combined with the circuit breaker body, which significantly reduces the overall depth and optimizes the space utilization.
Zi Kai Indoor High Voltage Vacuum Circuit Breaker
product parameters:
number
item
unit
data
1
Rated voltage
kV
40.5
2
1min power frequency withstand voltage (RMS)
kV
95
3
Lightning impulse withstand voltage (peak)
kV
185
4
Rated frequency
Hz
50
5
Rated current
A
1250,1600,2000
6
Rated short-time withstand current
kA
25,31.5
7
Rated peak withstand current
kA
63,80
8
Rated short circuit duration
S
4
9
Rated short-circuit breaking current
kA
25,31.5
10
Rated short-circuit closing current
kA
63,80
11
Rated operating sequence
0-0.3s-CO-180s-CO
12
Breaking time
ms
<80
13
Rated short circuit breaking current breaking times
time
20
14
Individual capacitor bank breaking current
A
630
15
Back-to-back capacitor bank breaking current
A
400
16
Rated operating voltage
V
AC110,220;DC110,220
17
Mechanical life
time
10000
Zi Kai Indoor High Voltage Vacuum Circuit Breaker Outline and mounting dimensions
Zi Kai Indoor High Voltage Vacuum Circuit Breaker Use environment
Temperature range: The upper limit of ambient air temperature is generally +40 ° C, and the lower limit can reach -40 ° C.
Altitude limit: The altitude is generally not more than 1000m
Wind pressure and wind speed: Wind pressure does not exceed 700Pa, equivalent to wind speed 34m/s.
Earthquake intensity: not more than 8 degrees.
Pollution rating: Usually Class III or Class IV, the equipment is required to have good anti-pollution performance to maintain its insulation level.
Humidity and vibration: the daily average relative humidity is not more than 95%, the monthly average is not more than 90%; At the same time, it is required that there is no flammable, explosive danger, chemical corrosion and violent vibration.
Zi Kai Indoor High Voltage Vacuum Circuit Breaker Feature And Application
Feature
1.Overall circuit breaker performance is superior
The overall structure of the circuit breaker is simple and reasonable, and the arc extinguishing chamber part, interlock and operation part are arranged up and down. Using special spring operating mechanism, no adjustment, stable and reliable action.
The installation form is free and flexible, including the installation in the cabinet and the fixed installation of the side mechanism
2. High reliability insulation cylinder
The insulating cylinder is made of epoxy resin with reliable electromechanical properties through a mature vacuum pouring process.
3.Advanced vacuum arc extinguishing chamber
Preferred WL-35855X vacuum interrupter, from the United States Cutler-Hammar company quality assurance.
Optional coil type longitudinal strong magnetic field structure vacuum arc extinguishing chamber, ceramic shell, copper chrome contact material, small size, high insulation level, strong arc extinguishing ability, long electrical life, excellent performance of breaking and closing short circuit current.
Application
Power plant and substation core protection: In large power plants and substations, indoor high-voltage vacuum circuit breakers can be used as critical protection and control equipment.
Power supply guarantee for industrial production lines: indoor high-voltage vacuum circuit breakers can provide protection for various power equipment and production lines.
Key nodes of urban power grid: In the key nodes of urban power grid, such as substations, distribution rooms and other places, indoor high-voltage vacuum circuit breakers are widely used.
Data center and communication base station: In the data center and communication base station and other places that need uninterrupted power supply, indoor high-voltage vacuum circuit breaker is an important power protection equipment to ensure the stability and reliability of power supply.
Zi Kai Indoor High Voltage Vacuum Circuit Breaker Details
certificates
FAQ
1、What is your packaging standard?
Usually we use standard foam and carton packaging. If you have special requirements, we can also meet your requirements.
2、Why do you buy from us instead of other suppliers?
More than 10 years experience in design and manufacture of high voltage switchgear accessories. It is one of the largest star suppliers in the industry, and has won international and domestic praise, and has been shortlisted for the National Grid.
If you have any enquiry about quotation or cooperation, please feel free to email or use the following inquiry form. Our sales representative will contact you within 24 hours.
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