交流限流起動(dòng)異步電動(dòng)機(jī)無觸點(diǎn)轉(zhuǎn)移開關(guān)的研制
時(shí)間：2015-7-7 8:24:00 來源：中國工控網(wǎng) 添加人：admin
3HXD1639-100應(yīng)用長廊遑膝蛑。，倉斂你備蕊翁翁名裊嫩研菊！
□中南大學(xué)鐵道校區(qū)信息工程學(xué)院Btii孫寧在電力系統(tǒng)中，交流電動(dòng)機(jī)具有結(jié)構(gòu)簡單，運(yùn)行可靠，價(jià)格便宜，過載能力強(qiáng)，使用安裝維護(hù)方便等優(yōu)點(diǎn)，被廣泛應(yīng)用于各個(gè)領(lǐng)域。，物都有它的兩面性，交流電動(dòng)機(jī)還存在著個(gè)最大的弱點(diǎn)就是起動(dòng)電流大。起動(dòng)電流是額定電流的5 7倍，即使是不加負(fù)載空載起動(dòng)也是如此。如l臺7.5kW普通電動(dòng)機(jī)額定電流是15戌，它的起動(dòng)電流就是75105丸。起動(dòng)電流增大將產(chǎn)生嚴(yán)重后果大型電動(dòng)機(jī)更為嚴(yán)重對于頻繁起動(dòng)的電動(dòng)機(jī)，過大的起動(dòng)電流將造成電動(dòng)機(jī)發(fā)熱，影響電動(dòng)機(jī)的壽命，同時(shí)電動(dòng)機(jī)繞組特別是端部在電動(dòng)力的作用下會(huì)發(fā)生變形，嚴(yán)重時(shí)可能造成短路而燒壞電動(dòng)機(jī)。
3HXD1639-100過大的起動(dòng)電流會(huì)使線路的壓降增大，造成電網(wǎng)電壓顯著下降，而影響接在同電網(wǎng)上的其他異步電動(dòng)機(jī)的工作，有時(shí)甚至使它們停下來或無法帶負(fù)載起動(dòng)。
頻繁起動(dòng)的大電流還對電源開關(guān)電源導(dǎo)線電源變壓器等供電裝置產(chǎn)生嚴(yán)重影響，經(jīng)常損壞等等。
3HXD1639-100由于以上原因，大型電動(dòng)機(jī)的起動(dòng)大都必須采取必要的降低起動(dòng)電流的措施。目前最常的起動(dòng)方法有降壓起動(dòng)降低電動(dòng)機(jī)供給電壓么起動(dòng)延邊么起動(dòng)等等。但由此帶來了新的問，即起動(dòng)電流的下降使得電動(dòng)機(jī)的轉(zhuǎn)矩大大下降。
3HXD1639-100交流限流起動(dòng)異步電動(dòng)機(jī)是為解決上述難而研制的種新型電動(dòng)機(jī)。它將定子繞組沿徑向分割成兩部分，定子繞組直接與相電源連接，另定子則通過轉(zhuǎn)換裝置與相電源連接，轉(zhuǎn)換裝置設(shè)置種狀態(tài)，分別與相電源種進(jìn)線相位變化對應(yīng)，使得兩組定子繞組在轉(zhuǎn)子上的感應(yīng)電勢發(fā)生變化，達(dá)到起動(dòng)和調(diào)速的需要。實(shí)踐證明，采用雙定子磁場向量合成技術(shù)，通過內(nèi)置控制和力矩提升改變磁場，在不損失起動(dòng)力矩前提下能將起動(dòng)電流減小到普通電動(dòng)機(jī)起動(dòng)電流的50.本文要介紹的轉(zhuǎn)換開關(guān)則是其中很重要的轉(zhuǎn)換裝置，它比般繼電器形式的轉(zhuǎn)換裝置有著無觸點(diǎn)便于控制抗干擾性強(qiáng)等系列優(yōu)點(diǎn)，并已成功運(yùn)用于現(xiàn)場。
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3HXD1639-100 INTERBUS CABLE RG
3HXD1640-15 SIGNALCABLE
3HXD1640-150 RESOLVER EXTENSION CABLE
3HXD1640-170 RESOLVER EXTENSION CABLE
3HXD1640-220 SIGNAL CABLE
3HXD1640-240 Signal cable
3HXD1640-30 RESOLVER EXTENSION CABLE
3HXD1640-40 RESOLVER EXTENSION CABLE
3HXD1640-50 RESOLVER EXTENSION CABLE
3HXD1640-70 SIGNALCABLE
3HXD1666-100 HOSE
3HXD1672-150 CP/CS CABLE PARALLEL
3HXD1672-60 CP/CS CABLE PARALLEL
3HXD1672-70 CP/CS CABLE PARALLEL
3HXD1675-1 CARRIAGE
3HXD1691-110 POSITION SW.CABLE
3HXD1691-130 POSITION SW.CABLE
3HXD1691-150 POSITION SW.CABLE
3HXD1691-170 POSITION SW.CABLE
3HXD7109-1 PRODUCT MANUAL ENGLISH
3HXG1000-10 CABLE
3HXG1000-101 WELD PLATE
3HXG1000-11 CABLE
3HXG1000-12 CABLE
3HXG1000-138 Ball bearing
3HXG1000-151 CONNECTION FEMALE 8P
3HXG1000-152 Pin device
3HXG1000-153 Housing device
3HXG1000-156 Pin device
3HXG1000-157 Housing device
3HXG1000-162 Rubber element
3HXG1000-165 Coupling
3HXG1000-170 Coupler
3HXG1000-176 Bracket for cable chain
3HXG1000-178 Cable bracket
3HXG1000-198 Coupling
3HXG1000-199 Gear box
3HXG1000-20 Coupling
3HXG1000-201 Gear box
3HXG1000-203 AIR CONNECTOR
3HXG1000-209 BALL SCREW + NUT
3HXG1000-211 CABLE CHAIN ATTACHMENT
3HXG1000-216 EDGE LIST
3HXG1000-224 SCREW
3HXG1000-226 ALLEN SCREW
3HXG1000-25 Clamping unit
3HXG1000-253 GUARD SCREEN
3HXG1000-262 CONTACT GREASE
3HXG1000-284 PROTECTOR HOSE
3HXG1000-285 GRIP UNIT
3HXG1000-292 LUBRICATING NIPPLE
3HXG1000-4 TERMINAL BLOCK MARKING
3HXG1000-413 MAGNALUBE-G GREASE
3HXG1000-48 T-CROSS
3HXG1000-49 ADAPTER
3HXG1000-5 VALVE BISTABLE
3HXG1000-506 BUSHING NC910
3HXG1000-51 CONNECTING ANGLE
3HXG1000-516 Brush holder
3HXG1000-52 CABLE CHAIN LINK
3HXG1000-53 CASING
3HXG1000-55 CONTACT SOCKET
3HXG1000-556 REDUCE NIPPLE
3HXG1000-558 THREADED COUPLING.
3HXG1000-56 SQUEEZE BUSHING
3HXG1000-561 ANGLE COUPLING
3HXG1000-562 Oil brush
3HXG1000-563 STABILISATOR
3HXG1000-585 SOLENOID VALVE-BüRKERT
3HXG1000-586 TIMER-BüRKERT
3HXG1000-587 GREASE CONTAINER
3HXG1000-588 E-PUMP TRABON
3HXG1000-589 DIVIDER VALVE
3HXG1000-591 COUPLING
3HXG1000-600 T-SCREW NUT
3HXG1000-615 COUPLING, STRAIGHT
3HXG1000-68 CONNECTION FEMALE 4P
3HXG1000-69 Cabel
3HXG1000-70 POWER CABLE
3HXG1000-86 Roller block
3HXG1000-94 CABLE ATTACHMENT 16-22 O
3HXG1000-95 CABLE ATTACHMENT 12-16 O
3HXG1101-1 O-RING
3HXG1101-2 O-RING
3HXG1105-1 PARALLEL PIN
3HXG1106-4 PLASTIC HOSE PUN-6X1
3HXG1111-3 HOSE
3HXG1111-5 Hose
3HXG1111-6 HOSE
3HXG1111-8 HOSE
3HXG1111-9 HOSE
3HXG1117-3 ROTO GLYDE SEALING
3HXG1127-3 LINEAR GUIDE 45
3HXG1135-2 BEARING
3HXG1137-2 GEAR
3HXG1138-3 SOCKET SCREW
3HXG1140-1 V-TTNING, VL-160
3HXG1141-1 GEAR
3HXG1141-2 GEAR
3HXG1141-3 Shaft Coupling Clamping ring
3HXG1141-4 Shaft coupling distans
3HXG1143-2 BREAKER
3HXG1144-8 MF6S 10.9 DIN7991
3HXG1145-1 Pipe clamp
3HXG1147-1 GEARB.
3HXG1147-2 GEAR DRIVE
3HAB2844-1 Resistor and Fan unit
3HAB2869-1 Ext. located op panel 15m
3HAB2870-1 Ext. located op panel 22m
3HAB2909-1 Female insert 72p
3HAB2909-2 Male insert 72p
3HAB2916-1 Resistor
3HAB2924-1 Wheel bracket
3HAB2927-1 Rubber moulding
3HAB2945-1 Transf. EU 400-500V
3HAB2946-1 Transf. USA 475-600V
3HAB2947-1 Transf. JAP 200-400V
3HAB2950-1 Transf. EU, 400-500V
3HAB2951-1 Transf. USA 475-600V
3HAB2952-1 Transber JAP 200V,2
3HAB2955-1 Housing with locking
3HAB2957-1 Jumper
3HAB2986-1 Contact socket
3HAB2987-2 Gasket
3HAB2989-2 Component unit
3HAB2995-2 House bulkhead mounting
3HAB2995-4 House bulkhead mounting
3HAB2997-1 Wrist band
3HAB3031-1 Parallel bar
3HAB3126-1 Parallel arm
3HAB3144-1 Gearbox 2,3
3HAB3201-1 Housing axis 4
3HAB3203-1 Cable unit axis 1-3
3HAB3204-1 Cable unit axis 4-6
3HAB3205-1 SIGNAL CABLE
3HAB3206-1 ADAPTER CABLE
3HAB3208-1 Cable unit axis 4-6 CC
3HAB3210-1 Gear axis 4, step 2
3HAB3211-1 Pinion axis 4, step 2
3HAB3212-1 Gear axis 4, step 1
3HAB3213-1 Pinion axis 4, step 1
3HAB3220-1 Cover axis 1-3
3HAB3221-1 Cover
3HAB3223-1 Cover axis 5-6
3HAB3225-1 Bracket
3HAB3226-1 Bracket
3HAB3228-1 Bracket
3HAB3230-1 Bracket
3HAB3231-1 Bracket
3HAB3233-1 Bearing house, axis 4
3HAB3254-1 Cushion axis 3
3HAB3256-1 Shaft
3HAB3257-1 Damper
3HAB3258-1 Stop pin
3HAB3259-1 Stop, axis 2 Complete
3HAB3260-1 Washer
3HAB3261-1 Sealing
3HAB3262-1 Spacer
3HAB3263-1 Tension spring
3HAB3264-1 Spacer
3HAB3265-1 Shaft
3HAB3266-1 Cover
3HAB3269-1 Stop, axis 3 complete
3HAB3272-1 Gear box , axis 1-3
3HAB3281-1 Lower arm
3HAB3282-1 Parallel arm
3HAB3283-1 Parallel bar
3HAB3286-1 STOP AXIS 1 comp
3HAB3287-1 Heat shield
3HAB3288-1 SPOUT HEAT SHIELD
3HAB3289-1 NUT
3HAB3290-1 Bracket
3HAB3291-1 Spring
3HAB3293-1 Sealing
3HAB3296-1 Sync.market axis 1-2
3HAB3297-1 Sealing
3HAB3298-1 Cableguide
3HAB3299-1 Holder for cableguide
3HAB3310-1 Cable pos.indicator ax.1
3HAB3321-1 Connections box ax. 1-3
3HAB3322-1 Cable box M4
3HAB3326-1 Gasket M1-3
3HAB3327-1 Gasket M4-6
3HAB3328-1 Cable guide
3HAB3333-20 Coupling
3HAB3347-1 Gasket bottom plate
3HAB3348-1 Gasket
3HAB3361-1 Bottom plate
3HAB3362-1 Cable unit axis 1-3
3HAB3363-1 cable unit axis 4-6
3HAB3364-1 Cable unit axis 4-6
3HAB3367-1 Bracket
3HAB3370-1 Bracket
3HAB3380-1 Gear unit axis 4
3HAB3384-1 Cable unit axis 4-6 CC
3HAB3385-1 Cable unit axis 4-6 CC
3HAB3388-1 Wrist
3HAB3396-1 Bracket
3HAB3402-14 Hex socket head cap screw
3HAB3402-15 Hex socket head cap screw
3HAB3402-24 Hex socket head cap screw
3HAB3402-25 Hex socket head cap screw
3HAB3402-26 Hex socket head cap screw
3HAB3402-28 Hex socket head cap screw
3HAB3402-30 Hex socket head cap screw
3HAB3402-36 Hex socket head cap screw
3HAB3402-37 Hex socket head cap screw
3HAB3402-38 Hex socket head cap screw
3HAB3402-39 Hex socket head cap screw
3HAB3402-44 Hex socket head cap screw
3HAB3402-51 Hex socket head cap screw
3HAB3402-52 Hex socket head cap screw
3HAB3404-14 Hex socket head cap screw
3HAB3409-200 Hex socket head cap screw
3HAB3409-205 Hex socket head cap screw m20x90
3HAB3409-23 Hex socket head cap screw
3HAB3409-24 Hex socket head cap screw
3HAB3409-25 Hex socket head cap screw
3HAB3409-26 Hex socket head cap screw
3HAB3409-27 Hex socket head cap screw
3HAB3409-29 Hex socket head cap screw
3HAB3409-37 Hex socket head cap screw
3HAB3409-38 Hex socket head cap screw
3HAB3409-39 Hex socket head cap screw
3HAB3409-40 Hex socket head cap screw
3HAB3409-42 Hex socket head cap screw
3HAB3409-50 Hex socket head cap screw
3HAB3409-51 Hex socket head cap screw
3HAB3409-52 Hex.sock.head cap screws
3HAB3409-53 Hex socket head cap screw
3HAB3409-57 Hex socket head cap screw
3HAB3409-59 Hex socket head cap screw
3HAB3409-60 Hex socket head cap screw
