EVC1-630A

EVC1-630A GREEGOO | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 6

Technical content

Greegoo Electric Co.,Ltd Add:Jinye Mansion, Lvzhuang, Liushi, Yueqing, Zhejiang, 325604 P.R. China moc.oogeerg@retep :liam-E moc.oogeerg.www//:egapemoH Vacuum Contactors Single Phase Vacuum Contactor/EVC1-630A Tel: +86 577 62776000 Fax: +86 577 62776006 EVC1 series single pole high voltage vacuum contactors ( hereinafter referred to as : contactor ) , is suitable for AC 50HZ, rated voltage of the main circuit 12KV, rated current from 160A to 630A power network system for remote making and breaking and frequent starting and con- trolling AC motors , transformers and capacitor banks and other occa- sions . 1.Product overview 2.The use of the environment conditions 3.Use requirements 2.1 Ambient temperature -25 ¥ ~ +40 ¥. 2.2 installation site altitude does not exceed 2000m.

2.3 The relative humidity of the air , the wettest month average monthly

maximum relative humidity of 90% , monthly average minimum tempera- ture of 25 ° C , and taking into account the Cream of temperature chang- es on the surface of the product . 2.4 environment : anhydrous invasion , non-corrosive and flammable gas and excessive vibration occasions .

3.1 Properly select the the contactor technology parameters , including

auxiliary switch contacts are not overloaded .

3.2 Around and above contactor to leave enough space for insulation, to

ensure the safety of use.

3.3 When you power up the control but there is no response, the power

should be immediately cut off and check the reasons of control power , to avoid burnt out solenoid.

3.4 When the contactor is used to control inductive loads , recommended

the the RC RC protection or varistor protection of overvoltage absorption protection device to protect the load security

3.5 When the electromagnetic system have strong magnetic attraction

when it’s in working ,we should keep the things with ferromagnetic material away form the machine .

3.6 The contact device is not suitable carries on the series joining-up

3.7 Main circuit connection principle : the upper end ( quiet side) into the

line side , the lower end ( moving end ) is the outlet end .

3.8 Specifications for the rated voltage :12KV (10KV) , rated current of

160A, 250A , 400A , 630A .

Greegoo Electric Co.,Ltd Add:Jinye Mansion, Lvzhuang, Liushi, Yueqing, Zhejiang, 325604 P.R. China moc.oogeerg@retep :liam-E moc.oogeerg.www//:egapemoH Vacuum Contactors Single Phase Vacuum Contactor/EVC1-630A Tel: +86 577 62776000 Fax: +86 577 62776006 4.Product structure and working principle 4.1.Structure : This series contactor separated by insulating electric frame , drivecrank arm , electromagnetic system ,auxiliary switch , vacuum switch parts , split up and down the structure of high-voltage circuit and low voltage control structure layout is beautiful, safe, reliable, easy to install and maintain . Independent insulating frame of each phase , the phase-to-phase insulation is very reliable , reliable work .

4.2 Working principle

4.2.1 Electrical mechanism

One-phase vacuum tube through the insulator and conductive Rod lever, the contact connected to the cantilever Springs, cantilevers and armature are fixed on the shaft.During closing, solenoid armature coil snap-keep, inward movement, the upward motion of the cantilever, vacuum tube through the contact spring contact is closed and provides a contact pressure to ensure reliable closed. When opening ,the elec- tromagnetic coil power lose suction opening, moving the armature in the sub-gate under the action of the spring, the outward movement of the cantilever downward movement, downward movement by pulling the lever, pull the insulator, moving conducting rod, contact separation requirements distance to achieve a reliable sub-gate. Due to electro- magnetic systems require larger power in armature snap and snap in place maintain power greatly reduced, in order to save electricity, syn- chronized by the auxiliary switch snap, maintain conversion. Auxiliary switch also provides user external control you need. With DC excitation of electromagnetic system, auto-control circuits with rectifiers, so users can be controlled directly from the AC power. As the vacuum switch main contacts score is conducted in a vacuum , which has a good breaking characteristics , long life , safe and reliable 4

4.2.2 Vacuum switch tube ( vacuum interrupter )

Vacuum interrupter is the heart of the contactor member , the upper and lower cover plate, glass or ceramic housing , bellows , moving , fixed conductive rod composed of closed cavities, and pumped into the high vacuum, and movable , fixed conductive rod electric terminal welding a pair of wear-resistant Closure material Composition contacts , well-formed of the breaking contacts, bellows plays against atmosphere , so that contact can the function of the movement up and down . Due to the vacuum chamber, the tube can not subject to external shock , the bellows can not be twisted by rotation , otherwise they will leak damage

5.Maintenance 6.Transportation & conservation Greegoo Electric Co.,Ltd Add:Jinye Mansion, Lvzhuang, Liushi, Yueqing, Zhejiang, 325604 P.R. China moc.oogeerg@retep :liam-E moc.oogeerg.www//:egapemoH Vacuum Contactors Single Phase Vacuum Contactor/EVC1-630A Tel: +86 577 62776000 Fax: +86 577 62776006

5.1 Recommends that users establish a regular maintenance of the

system , to ensure the good condition of the load switch . Insulating frame , vacuum tubes , circuit system on a regular basis for cleaning, guarantee normal work insulation and action .

5.2 Check the fasteners are loose , whether there are abnormalities in

the structural parts . 5.3. The auxiliary switch for normal operation , a good contact.

5.4 Check the open away from the the over travel compliance require-

ments . 5.5 Open pitch: i.e. the distance separating the main contacts , the actual distance measured by the movement distance of a certain point of the conductive rod . Tripping reliability by impact pressure,impact , generally adjusted at the factory . 5.6 Over travel : Over-travel . Closing, has been closed in the move- ment contact , the movable guide rod not in the case of the movements , the boom also the upward movement of the compression contact spring ,this distance is the overt ravel . Overt-ravel is an important guarantee for the use of the process of closing reliable . Has been adjusted in the factory . But in the main contact burning , to cause the overt ravel change , need to be checked regularly . The method is as follows , the cantilever with Rod at below a universal circle or universal ball . In closing, check the distance between the universal circle with cantilever is actual overt ravel . Generally available template check . 5.7 Electrical wiring is loose ? Should be connected securely .

5.8 Vacuum tube vacuum degree examination , commonly used

frequency withstand voltage method for detecting the pressure value should not be less than 1 / 2 of the rated value .

6.1 Contactor vacuum tube shell , proportion or ceramic , is a fragile

device , must be treated with care . Handling not throw throw ,colli- sion , during transport shall not upside down , tumbling , severe vibration , transportation nor sleet invasive .

6.2 The product should be stored in water invasion , non- corrosive

and flammable gases , air circulation , drying temperature -30 ¥ ~ +40 ¥ coffers . 6.3 The product is not a long time placed on the ground . Stored sets of good plastic bag .

7.EVC1 Series Vacuum contactor Tech-parameter 8.EVC1 series vacuum contactor installation size Greegoo Electric Co.,Ltd Add:Jinye Mansion, Lvzhuang, Liushi, Yueqing, Zhejiang, 325604 P.R. China moc.oogeerg@retep :liam-E moc.oogeerg.www//:egapemoH Vacuum Contactors Single Phase Vacuum Contactor/EVC1-630A Tel: +86 577 62776000 Fax: +86 577 62776006 Main circuit rated voltage (KV) 12 12 12 12 Main circuit rated current (A) 160 250 400 630 Main circuit making capacity (A/100times) 1600 2500 4000 6300 Main circuit break-make ability (A/25times) 1280 2000 3200 5000 Maximum break ability (A/3times) 3200 4000 4500 6300 Mechanical life (million times) 100 100 100 100 Electricity life AC3 (million times) 25 25 25 25 Power-frequency withstand voltage for main circuit (KV) 32 32 32 32 Power-frequency withstand voltage for control circuit KV 2 2 2 2 Lightning impulse withstand voltage KV 75 75 75 75 Rated operate frequency (times/h) 300 300 300 300 Terminal Pressure N >100 >100 >150 >150 Clearance between open contacts Main circuit electric resistance( µ ) 200 200 200 200 Model Tech parameter 160/12 250/12 400/12 630/12

9.EVC1 series outline dimension drawing 10 .Electrical mechanism secondary circuit working principle Greegoo Electric Co.,Ltd Add:Jinye Mansion, Lvzhuang, Liushi, Yueqing, Zhejiang, 325604 P.R. China moc.oogeerg@retep :liam-E moc.oogeerg.www//:egapemoH Vacuum Contactors Single Phase Vacuum Contactor/EVC1-630A Tel: +86 577 62776000 Fax: +86 577 62776006 11.Electrical mechanism secondary circuit wiring diagram SA: auxiliary switch C1C2: absorption capacitor RD: Fuses Q1: close coil Q2 : opening coil X1 X2: block terminal

12.Common fault and method for correction 13.Installations: Greegoo Electric Co.,Ltd Add:Jinye Mansion, Lvzhuang, Liushi, Yueqing, Zhejiang, 325604 P.R. China moc.oogeerg@retep :liam-E moc.oogeerg.www//:egapemoH Vacuum Contactors Single Phase Vacuum Contactor/EVC1-630A Tel: +86 577 62776000 Fax: +86 577 62776006 Failure phenomenon Reason Solutions 1. No power supply or ac/dc wrong or voltage is too low. 1. Check the coil and connection. 2. Control circuit has broken line. 2. Check the wiring row, power supply terminals, switch terminal. 3. Auxiliary switch to convert the normally closed contact have open circuit.4. Rectifier damage. 3. Adjusting switch play in place or more bad burn out point. 4. Replace the power supply plate. 1. Power panel has a problem. 1. Particularly power panel. 2. Coil has a problem. 2. Replace coil. 3. Core have foreign body. 3. Remove foreign bodies. 4. Auxiliary switch installed in strange position. 4. Adjusting switch move later. 5.Mechanical-lock undeserved 5. Adjustment 1.A power supply voltage is too low. 1 . Improve the power supply voltage 2 . Jamming . 2.Insulators , pipe semicircle ball catching , plus a small amount of oil , respectively, the action look 3 . Adjustment . 3 .Inappropriate efforts to spring opening 1.Mounting surface is not level , deformation. 1 . Gasket pad level . 2.The inlet and outlet conductive 2.Access conductive row size should be in place , not bolt deadlift . row big rally , causing the machine deformation . 3 . Need leveling . 3.Electromagnetic pull uneven . 1.Supply voltage is too high . 1.Check the operating voltage 2 auxiliary switch conversion point did not open normally closed .3. Coils breakdown 2. Adjustment or replacement of the auxiliary switch . 3 . Require replacement 1.After electrify no reaction or electro magn -etic acoustic out (this phenomenon should immediately break electricity) 2. Can't keep switching a combo state 3.Action slow 4. Have Noise 5. The coil hot or burn out 1. Horizontal to installation this machine only, does not have a slope when it is in installing , angle must not exceed 15 ° 2. The installment holes must be in the same plane. To avoid forcing contactor and become deformation, affecting its normal work. 3. When joins the main circuit the electric conduction row of or the electric cable line, we cannot have the obvious pulling force to the contactor device, the wiring place must contract. 4. Carries on the electrical joint correctly, the control voltage of access must be consis- tent with the contactor control voltage, after the wiring, checks. 5. This contactor device may provide the auxiliary contact for you: The electrical mech- anism (4NO+ 3NC ). 6. Control supply part of this contactor device, the electrical mechanism disposes two rectifier unit, one set is spare, such as the rectifier unit breaks down, may the control supply line access spare, then normally works.