Product : VEJ Vacuum circuit breaker
Introduction: more suitable for the requirements of cast pole, thus improving the reliability of the product
Model : VEJ
Installation: Switchgear / indoor
Type: Roll-out type
Product Description
VEJ series vacuum circuit breakers are equipped with modular spring operating mechanism, integral cast pole, high-performance, long-life vacuum interrupter with small size, which is more suitable for the requirements of cast pole, thus improving the reliability of the product. The design concept of functional modularization can quickly diagnose faults, shorten maintenance time, and quickly restore power supply. It has excellent performance in occasions where frequent operation is required and/or where short-circuit current needs to be broken. It fully meets the requirements of automatic reclosing and has extremely high operational reliability and service life.
VEJ vacuum circuit breaker complies with the relevant national and industry standards GB/T 1984-2014 ( IEC 62271-100-2008, MOD ) "High Voltage AC Circuit Breaker" and has passed the A full set of type tests have been passed, and the quality inspection and testing center of reactive power compensation complete sets of power industry has passed the split capacitor bank test, and the performance has reached C2-E2-M2 level. In addition, the circuit breaker has passed the low-temperature test verification in the No. 704 Research Institute of China Shipbuilding Industry Corporation.
Feature:
The VEJ series vacuum circuit breaker is equipped with a modular spring operating mechanism, and the integrally cast fully solid-sealed pole.
VEJ vacuum circuit breakers comply with the corresponding national standard GB/T1984 and have passed a full set of type test verification (C2-E2-M2 level), and the product has also passed the -25C low temperature test.
Professional vacuum extinguishing chamber fully solid-sealed pole
Reliable modular operating mechanism AC and DC universal line diagram module
Innovative snap-on panel integrated chassis
The solid-sealed pole technology ensures that the vacuum interrupter is reliably protected from mechanical impact, dust and moisture
Innovative functional modular design, compact size, spring energy storage operating mechanism, standard anti-jump function, stable performance and long service life
Fixed or withdrawable installation, complete secondary accessories and safety interlock solutions are available
Standard:
GB/T 1984-2014 ( IEC 62271-100-2008, MOD )
- modular operating mechanism VEJ vacuum circuit breaker adopts a modular mechanical operating mechanism with spring energy storage and free trip; opening and closing operation performance has nothing to do with the operator; energy storage and opening and closing can be operated manually , can also be operated by electric; this operating mechanism has low energy consumption, simple concept, easy to use, and can be freely selected with secondary accessories that can be installed easily and quickly; the circuit breaker has energy storage status, opening and closing status and operation times Instructions can be observed through the front panel; the simple design concept brings high reliability of components.
2. The integrally cast fully solid-sealed pole vacuum interrupter is integrally cast in epoxy resin. The integrally cast pole structure is stronger, which can provide more sufficient protection for the vacuum interrupter and eliminate dust and The influence of moisture on the external insulation capacity of the arc extinguishing chamber, the inner and outer corrugated design of the pole, without additional creepage distance booster, the creepage distance can be greater than 240 mm, which fully meets the II pollution level specified in the DL standard Requirements for use under certain conditions; the arc extinguishing chamber permanently seals the main contacts of the switch in a vacuum environment to form an interrupting arc extinguishing unit; The optimal cooperation of the opening and closing performance of the chamber makes the overall performance of the circuit breaker safer and more reliable; at the same time, this compact structure also ensures the firmness and mechanical reliability of the circuit breaker.
- Reliable safety interlock The circuit breaker is also equipped with a complete interlock function to prevent dangerous and erroneous operations: the front beam of the circuit breaker is equipped with a positioning interlock, which is matched with the switch cabinet, and only the handcart is completely The handle on the beam can only be moved when it is shaken to the test position (the chassis of the handcart and the beam are completely close together). The operating handle of the handcart must be in place when inserted, so that the circuit breaker can be operated in and out. When the grounding switch is closed, there is a locking device that prohibits the circuit breaker from swinging into the working position. The locking device locks the circuit breaker in the closed state for rocking in and out operation; when the circuit breaker is in the middle position, there is also a locking device to lock the circuit breaker and cannot be closed (regardless of electrical and mechanical operations); according to requirements, the circuit breaker can also be configured Locking device that cannot be shaken in and out when the door is open. The circuit breaker has a complete electrical lockout (optional), and can complete the safe power distribution function with an appropriate switch cabinet. In addition to the isolation plum contact and the aviation plug assembly with hose connected to the auxiliary circuit, the withdrawable circuit breaker can realize the swing in/out operation of the circuit breaker under the condition that the switch cabinet door is closed. The anti-mispinning matrix prevents circuit breakers of different rated currents from being operated in the wrong switchgear. 4. The operating mechanism of the mechanical anti-trip circuit breaker is equipped with a mechanical anti-trip device, which can avoid electrical conflict with the comprehensive protection device and prevent the circuit breaker from closing again under continuous mechanical or electrical commands. When a closing command and an opening command (remote or local) exist at the same time, the circuit breaker will continue to open and close repeatedly. The anti-jump device ensures that if a closing operation is followed by an opening operation, the previous closing order will not cause the second closing operation, and the previous closing order must disappear first, and then be reissued. In addition, the circuit breaker's anti-tripping device allows the circuit breaker to be closed only when the following conditions are met: • the operating mechanism is fully charged • the opening pushbutton is not pressed and/or the opening release (-M01/M02 ) not started • The circuit breaker is in the open state.
- Complete accessories The circuit breaker is designed with a complete series of secondary accessories to meet all installation and use requirements. The operating mechanism has a standard series of accessories and spare parts, easy to order. All accessories can be easily installed from the front of the circuit breaker. The connection of the secondary control line is done by plug-socket. The use, maintenance and operation of circuit breakers are very simple.
Specifciation sheet
Company Profile
Founded in 2002, Sanhe Power Tech is a national high-tech enterprise that specializes in power quality products, R&D of technology and solutions, production,service etc. It becomes industry-leading company.
The company has got multiple technologies including.
28 invention patents,
24 software copyrights,
22 national standards and 15 industry standards drafting.
Sanhe Power Tech is a member of international committees such as
the International Electrotechnical Commission (IEC)
the Institute of Electrical and Electronics Engineers (IEEE) etc.
The software development system has passed the CMMI evaluation of the American SEI.
There are three main business covering:
A full range of power quality testing and governance products and complete solutions.
Distributed new energy system products and advanced solutions.
Primary and secondary engineering based on "dual carbon" and energy management with standardized and professional engineering services.
Our Advantages
Simulation of GRID Reactive Load Flow
Analysis of L-C Circuit Amplitude-frequency Characteristic
Integration & Relay Coordination Reaction
Characteristic Curve of Permanent Magnet Breaker
Sampling & Filtering of Electronic Circuit
IGBT Driving & Protection
PWM Technology
Technology about Semiconductor Forced Commutation
Thermal Simulation & Heat Exchange Design
Feed-forward Second-order Complex Vector Algorithm
3D & Data Simulation
Instrumented IOT Communication
VP Scheduling & Dispatcher
Digital Twins of Micro-Grid & Islanding-Grid
FAQ
What kind of payment terms can we accept?
Payment in advance,Installment payments,Letter of credit(L/C).
What is the lead time of products?
According to different products, the lead time is different.
For standard products like APF,SVG, the lead time is one week.
For customized capacitor bank etc, the lead time is 25 to 45 days.
How to find the product model if you are some demand?
If you need our technical guide,please advise your problem details as much as you can,we can give more reasonable solution.
You may provide following drawings or report
Single line drawing
Panel primary scheme drawing
Power quality test report(mainly about harmonics)
How to find the product model if you have details electrical drawings?
Please advise Load name plate, load working condition, existing power factor, target power factor, harmonic times etc Or Rated voltage,compensation capacity, harmonic times(reactor detuning factor), other components etc.
How to find the product model if you can not provide enough information?
We can supply your products according to your technical requirement.
We can go to your project site and give a professional test report after test.
Why do we choose Sanhe power quality solution?
Sanhe has specialized in over 20 years experience in power quality products and solution. We have met most of power quality problems and gave the solutions.
What kind of technical service does Sanhe provide?
• Project-site power quality test ( or test report from customer)
• Improvement solution and budget
• Product solution and price
• Products supply
• Product commissioning
What kinds of standards does Sanhe product conform to?
Except China standards, Sanhe products also conform to IEC standards including
IEC61921 :2003 IEC61000-4-5:2005
IEC60529:2001 IEC60931-1: 1996
IEC60439-1 :2005 IEC60664-1 2007
IEC60831-1: 1996 IEC61000-4-3/2/4/5/18 IEC61000-2-4
IEC60255 IEC62208 2011…
IEC255-22-1
What is the compensation effect after using Sanhe products?
• Harmonic filtering meets standard
• Power factor is over 0.95,electrical bill saving,low reactive power penalty killing
• Reducing the loss of transformer and line
improve the distribution ability,
prolong the lifespan of electrical equipment
How long is the product guarantee time?
Usually,the guarantee time is one year. However,we can accept over 5 years too. Please contact our sales to get details information.
How to become the distributor or agent of Sanhe brand products?
Sanhe is looking for overseas distributor and agent. If you are interested in it, please feel free to contact us.
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