over a long period of time after the electric appliances.doc

over a long period of time after the electric appliances) to also have to definitely regulate scope.Can not exceed a product technique while acting while postponing condition rules.Chopper because of hot lead carry to take off to button up after after resetting by moving, can start again after needing a 1 min.B.owe to press to take off to button up to experiment:Take off to button up machine coil to press above-mentioned adjustable power, adjust to rise electric voltage to make title iron absorb to match, again pull to begin a handle to after matching the Zha continue to rise to press, make the electromagnetism vacuum force aggrandizement of coil to be good enough to overcome the anti- dint of the spring coil, but Be firm to absorb the electric voltage matching to read a number title iron, is take off to button up a machine of match Zha electric voltage.Then, turn down electric voltage gradually, be title iron to release to make the electric voltage that the switch jumps Zha, for divide Zha(release) electric voltage.Take off to button up a machine cent and match Zha electric voltage whole settle to be worth an error margin can not exceed product technique conditional rules.When the low-pressure chopper experiments should notice it whole settle the value should match a design request.(2)Double metal slice type hot after electric appliances check experimentUsually it with communicate to get in touch with a machine construction the magnetic force start a machine.After electric appliances of whole settle electric current to pass to regulate to equip to regulate.1)the general checkCheck and choice hot component should with be protected the sum of electrical engineering settle electric current and start the model number of machine with magnetic force to agree with;Fasten into a set such as the hot component supply, according to manufactory of elucidation, need not carry on again to switch on electricity to adjust with organization, but have to check it to act if the organization is vivid;Check heat after each parts of electric appliances have have no rusty phenomenon and fix circumstance, return to whether the device is friendly, for action ineffective live and rusty should to replace.2)action value experimentExperiment a way as follows:Close the knife Chan switch K, the indicator ZD becomes bright.Regulate to adjust to press machine ZB to make electric current rise to whole settle electric current, stop over a period of time, hot should not act after the electric appliances.Adjust again to rise electric current to 1.200% whole settle electric current, the heat should act in the 20 mins after the electric appliances.Often shut to touch a point to break to open, the indicator puts out.Then decline to electric current zero.Need a hot component to reset.After shutting to touch a point to shut to match to make indicator become bright often, then adjust to rise electric current to 1.500% whole settle electric current, the heat should act in the 2 mins after the electric appliances at this time.Is same to decline to electric current zero, treat hot component completely cool off after, quickly adjust to rise electric current to 600% whole settle electric current, then draw back a knife Zha switch, at moment close a switch of at the same time, the measurement acts time, the heat should meet a product technique request after the electric appliances.The above action characteristic wants at regulate to mark clearly in the device of biggest and minimum whole settle electric current value under on trial respectively.If acting the error margin in time is bigger, can the Xuan move to regulate to equip medium screw to carry on adjustment.Being hot to insulate electric resistance after the electric appliances can with contact the machine or system carry on a measurement together.3)regulationA.if time of action not agrees with and matches a request, of turns and adjusts pole or adjustment screw while adjusting, absolutely forbid curved fold metals slice.B.be to adjust a pole to stir near when the screwreseting pole or adjustment adjust near double of metals slice then can make hot after electric appliances action time become short, whereas, then can make it act time to lengthen.C.Be each to have a dissimilarity after the structure of the electric appliances because of the heat, before adjustment should very understand be adjusted hot after the structure, adjustable part of electric appliances and it the good is switching on electricity to heat before and put adjustable organization betwixt position.D.the both ends of hot component should keep straight and even and sweep, can not arbitrarily bend to fold, so as not to the influence acts time.E.after adjusting organization, should re- carry on whole settle.F.adjust and experiment well after, can plus obvious marking in adjusting organization, in order to at the check.G.after switching on electricity and adjusting, can not satisfy to request of hot after electric appliances should to replace.(3)The JRD22-type electric motor synthesizes to protect a machineThe JRD22 type electric motor synthesizes to protect a machine mainly is with electronics type hot after electric appliances for the corpus replace metal slice type hot after the new product of electric appliancesProduct factory have already pressed the standard procedure, total 15 item investigates all qualified.Act electric current value and exterior whole settle to be worth an error margin to be no bigger than 2%.Emphasize its specification size to press the electric motor sum to settle electric current to select by examinations while consequently using.(4)Get in touch with a machine check to experiment1)the general checkGet in touch with a machine each zero, the parts should be complete;Title iron etc. can move part to act vivid, can not have been already blocked or shut to match a Zhi slow phenomenon, after opening or cutting the power, canning move part should completely return to home position, be move a point of contact with quiet point of contact and can move iron Xin with quiet iron Xin should fitted together while being mutual to get in touch with(shut to match), not get inclined on one side;The butter that iron Xin is neat with the contact surface of title iron to sweep, defend a rust such as Tu You should give clearance;Get in touch with machine while dividing Zha, move, quiet touch the air of an of distance, and move the pressure of touching the head while matching Zha, the surplus cleft after touching compression degree and compression of a pressure spring coil, should meet product technique conditional rules.Using ten thousand to measure the electric resistance of getting in touch with the machine coil with form or electricity bridge should with electric resistance value of Ming card agree with.Use to shake the form diagraph coil and point of contact etc. to conduct electricity part should be good to the insulating of electric resistance of ground.2)the action of contact machine experimentGet in touch with machine coil the both ends mount adjustable power and adjust rise when the electric voltage to title iron completely absorbs to match the electric voltage measured is to absorb to match electric voltage, its value generally doesnt should be lower than 85% coil sums to settle electric voltage(exchanges), had better be no higher than this mutually number.Arrive the power voltage drop below 35% that the coil sum settles electric voltage, title iron should can release.Finally adjust