AB-3S Outdoor permanent magnet vacuum circuit breaker
Model AB-3S -40.5 permanent magnet type vacuum circuit breaker adopted the peculiar permanentmagnet mechanism and high reliable intelligent controller.This breaker mainly operating in medium voltage overhead line, used to open or close loadingcurrent, overloading current, and short circuit current
•product overview of China AB 3S outdoor permanent magnet vacuum circuit breaker:
Model AB-3S -40.5 permanent magnet type vacuum circuit breaker adopted the peculiar permanentmagnet mechanism and high reliable intelligent controller.This China AB 3S outdoor permanent magnet vacuum circuit breaker mainly operating in medium voltage overhead line, used to open or close loadingcurrent, overloading current, and short circuit current, moreover it can perform 0 ~ 3 cycles of reclosingoperations.
extremely high reliability
Free of maintenance during its servicing life
long mechanical life and electrical endurance
Small size, lightweight, easy to be installed
With standard relay protection and fast automatic reclosing function
•Conditions of use:
Ambient temperature: -30℃~ +60℃
Altitude: not exceed 2000M
Max wind speed 34M/S
The vibration resulted from switchgear or controlgear, or other normal cases can be omitted
Pollution grade: IV
Storage Temperature -40℃ +85℃
•The basic structure and principle of vacuum circuit breaker
AB-3S-40.5 vacuum circuit breaker mainly consists of the embedded poles, current transformer,permanent magnet actuator and case
This China AB 3S outdoor permanent magnet vacuum circuit breaker is of minimized type, and equipped with the emergent OPEN device of manuallyoperated type
CTs are optional as required by the users
The control function for BZW-33M breaker is performed by the intelligent control unit
The breaker can be closed or opened locally, or remotely through its communication port
The other information of the breaker can be transmitted to the control center through thesignaling passage that may be cable, optical fiber, GPRS/CDMA, GSM and so on
The intelligent China AB 3S outdoor permanent magnet vacuum circuit breaker controller installation closing to Vacuum circuit breaker
It uses cable to connect between controller and breaker
The power source for the inelligent break controller has mains power supply and the standbypower, the mains power supply is AC or DC 220V, it come from the PT in high- tension line.
Battery provides the standby power source (installed in the controller box)
When main power supply for the controller, meanwhile it will charge the standby power source
In case that main power source is failed, standby power source will replace to operate and takeeffect not less than 48hours at full load
BZW-33M has emergency manual opening handle, China AB 3S outdoor permanent magnet vacuum circuit breaker can be use for emergency switching-off whenthe intelligent controller or power source is failed
•The principle of arcing
China AB 3S outdoor permanent magnet vacuum circuit breaker adopted vacuum interrupter,extinguish the arc and insulate by use of vacuum chamber, high vacuum degree. When the electrifiedmoving and static contacts are opened by operating mechanism, there will produce vacuum arcbetween contacts, meanwhile due to the special figure of the contacts, it will have longitudinalmagnetic field in the gap of contacts, make the arc to be diffused, electric arc will burn evenly on thesurface of contacts, remain low arcing voltage, while current value pass through zero, the residual ions,electrons, and steamed metal particles will recover or condense on the surface of contact and shieldedcover within several ms, insulation strength will recover quickly, namely electric arc is quenched andbreaker is opened. Because vacuum arc controlled by longitudinal magnetic field, consequently thisvacuum circuit breaker has high and steady breaking capacity.
The energy for controlling AB-3S-40.5 permanent magnet type vacuum circuit breaker is stored in highperformance capacitor which installed in the itelligent controller box. When to open or close the breaker,the capacitor release the energy immediately, and charge the capacitor through main power source orstandby power supply, charging time not more than 10s, capacitor voltage tolerance ≤1V
Push the CLOSE button on the controller box, or through remote closing operation, electrify the closingcoil of operating mechanism, the iron core will drive the contacts of breaker to move at specified speed.After the breaker is in ON position, control circuit will switch off power supply of closing coil, at thisstatus, the iron core will be picked up by permanent magnet and remained in the side of breakerCLOSED. After closing coil is out of power supply, it can eliminate the reaction force resulted fromcontacts of the breaker, make breaker reliably remained in ON position.
Push the OPEN button on the controller box, or through remote opening operation, electrify theopening coil of operating mechanism, produce further larger than the absorption force of permanentmagnet, to drive the contacts of breaker to move at specified speed. After the breaker is in OFFposition, control circuit will switch off power supply of opening coil, at this status, the iron core will beremained in the side of breaker OPENED due to opening spring, make breaker reliably remained in OFFposition.
•Manual opening handle operation for emergency use
When the China AB 3S outdoor permanent magnet vacuum circuit breaker in ON position, use the insulation rod to hook the operating eye of operating handle,and pull down, the breaker will be opened at some speed, to ensure the breaker can be break loadingcurrent reliably.
•mainly technical parameters
•Mainly data of operating mechanism of China AB 3S outdoor permanent magnet vacuum circuit breaker
Zhejiang Brwor Electric Co.. Ltd. was established in 2005, located in Yueqing city, Zhejiang province, China. There is 30 kilometers from Wenzhou airport.
Brwor is specialized in medium Voltage Electrical Equipment, as like C-GIS switchgear, solid insulated ring network cabinet, vacuum circuit breaker, load switches, and others core unit of ring main unit related.
Browr covers an area of 11.565 square meters, with a building area of 11.000 square meters, which is domestic key research and development and manufacturing of high-tech middle voltage switchgear enterprise. The new plant with 33335 square meters will put into use in the ending of 2022. And we have installations of more than 270,000 C-GIS switchgear all over the world(since now main market China).
We make per key part of RUM in our factory and have strict QC process. The process of QC as follows:
Incoming inspection – inspection – process inspection – quality inspection – delivery inspection. There is inspection records for each accessory and contract product,easy inquiry.
Contact with us by email or whatsApp, and inform us the requirements. T/T is optimized, we aks for advance payment and balance should be paid off before shipping usually. L/C is available.
Min. order is 1 set.
RMU is custom made product, we will according to your requirements to make it. The technical question will referred.
Annual output 20,000 units.
we have installations of more than 270,000 C-GIS switchgear all over the world(since now main market China) since 2022 May.
Sea shipping usually. But parts also recommend air shipping in case of urgency.
There are Wenzhou or Ningbo or Shanghai port near our city and will arrange loading after order finish then.
The warranty period is 24 months. “three guarantees policy”,Guaranteed repair, replacement and return due to quality proble.Exceeding the guarantees period, we provide maintenance accessories with discount .After received a request ,we will make a response within 12 hours.In case of overseas after-sales service, we will borne the domestic charge, the foreign part shall be borne by customer (including but not limited to visa, accommodation, travel expenses, staff salary etc.)
The main products are 10/33KV RMU.
Now we have an area of 11.565 square meters plant,and the new plant with 33335 square meters will put into use in the ending of 2022.The number of employees is around 180.
The lead time is 10-25days usually.
We keep kep parts of semi-finished products of RMU in stock usually.
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