Basic Info.

Model NO.	SEK
Phase	3
Main Circuit Rating Voltage	High Voltage
Main Circuit Rating Current	630A
Type	Ac Contactors
Rated Voltage	12kv
Rated Current	640A
Transport Package	Plywood
Specification	12kv
Trademark	Sanhe
Origin	China
HS Code	8537209000
Production Capacity	10000PCS\\Year

Product Description

Introduction
As a new generation of high-voltage vacuum contactor products, Sanhe SEK series monostable permanent magnet high-voltage vacuum contactor adopts a wide voltage electronic module to control the up and down direct movement of the monostable permanent magnet mechanism, so as to frequently switch on and cut off the normal working current, which is suitable for the control and protection of motor, transformer, reactive power compensation and other equipment.

Application
Motor control
Power electronic bypass
Capacitor switching 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 asthe 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 FlowAnalysis of L-C Circuit Amplitude-frequency CharacteristicIntegration & Relay Coordination ReactionCharacteristic Curve of Permanent Magnet BreakerSampling & Filtering of Electronic CircuitIGBT Driving & ProtectionPWM TechnologyTechnology about Semiconductor Forced CommutationThermal Simulation & Heat Exchange DesignFeed-forward Second-order Complex Vector Algorithm3D & Data SimulationInstrumented IOT CommunicationVP Scheduling & DispatcherDigital 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 reportSingle line drawingPanel primary scheme drawingPower 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 commissioningWhat kinds of standards does Sanhe product conform to?Except China standards, Sanhe products also conform to IEC standards includingIEC61921 :2003 IEC61000-4-5:2005IEC60529:2001 IEC60931-1: 1996IEC60439-1 :2005 IEC60664-1 2007IEC60831-1: 1996 IEC61000-4-3/2/4/5/18 IEC61000-2-4IEC60255 IEC62208 2011…IEC255-22-1What 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 lineimprove the distribution ability,prolong the lifespan of electrical equipmentHow 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.

Control loop parameter
Rated operational voltage	AC/DC110V/220V
Number of auxiliary contacts	4 open and 4 close

Electrical parameter
Rated voltage	12kV
Rated current	630A
Rated frequency	50/60Hz
Power frequency withstand voltage(1min)	42kV
lightning impulse withstand voltage	75kV
Rated short-time withstand current	6.3kA/4s
Rated peak withstand current	16kA
rated making current	6.3 kA
rated breaking current	5.04 kA
Contactor mechanical life	30×104 times
Contactor electrical life	AC-3:25×104 times
Contactor electrical life	AC-4:10×104 times

Control loop parameter
Rated operational voltage	AC/DC110V/220V
Number of auxiliary contacts	4 open and 4 close
Characteristic parameter
Clearance between open contacts	6.0±1.0mm
Over travel	1.0±0.5mm
Closing time	≤30ms
Opening time	≤20ms
closing-simultaneity	≤2.0ms
Max bouncing duration	≤5.0ms
Main loop resistance (20C)	≤80μΩ

Products

Sek High Voltage Mono