Product Overview
|
Qhov nruab nrab voltage VSD yog tsim los nrog cov hom phiaj ntawm kev ua kom muaj kev ntseeg siab, cov neeg siv -kev ua haujlwm zoo, thiab kev ua haujlwm zoo heev. Nws ua tau raws li qhov xav tau ntawm cov neeg siv nrhiav lub zog- tswj kev nrawm rau cov ntawv thov xws li kiv cua, twj, thiab compressors, yog li txhim kho cov txheej txheem ntau lawm. |
|
|
Txhawm rau ua kom tau raws li qhov xav tau ntawm cov phiaj xwm retrofit thiab txo kev nqis peev hauv kev tsim kho tshiab, nrog rau txo lub sijhawm tsim kho rau kev teeb tsa thiab rov ua haujlwm ntawm nruab nrab -voltage variable zaus tsav tshuab, ib lub tswv yim tsim kev sib koom ua ke tau saws.Qhov no suav nrog cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov txee tswj, nruab nrab -voltage switchgear U, thiab cov khoom siv sib txuas nkaus xwb. txuas cov nruab nrab-voltage input/output cables, low-voltage control power supply, and control signal lines.The RNHV series medium-voltage VSD system nta kev thauj mus los thiab ib leeg-sab saib xyuas, ua rau- qhov chaw teeb tsa, tu, thiab commissioning yooj yim thiab cov neeg siv{10}}tus phooj ywg. |
|
|
Chav tsev DC kev them nyiaj yug capacitor siv lub metallized zaj duab xis capacitor thiab ib qho khoom siv sab hauv bypass module. Piv nrog electrolytic capacitors, nws muaj kev ntseeg siab dua, kev saib xyuas -kev ua haujlwm dawb, thiab lub neej ntev dua. Lub kaw lus tseem muaj kev tiv thaiv thiab tswj kev ua haujlwm zoo dua qub, muab kev hloov pauv ib puag ncig zoo dua thiab ua tau raws li cov txheej txheem tswj ceev raws li ntau yam kev ua haujlwm.
Khoom nta
RNHV1000 series nruab nrab voltage VSD
Qauv piav qhia
Cov khoom ntawm RNHV1000 Series
|
|
Lub hwj chim chav txee
Innovative modular tub rau khoom txee qauv Innovative Modular Drawer Cabinet Structure Lub txee tshiab tsim muaj cov qauv tub rau khoom modular uas tso cai rau kev ntsaws ceev - thiab - ua si sib txuas, ua rau kev teeb tsa thiab kev saib xyuas yooj yim. Nws muab cov kev zoo nkauj tshiab nrog lub teeb yuag thiab pom kev zoo nkauj tsim. |
Lub zog
H-Bridge Topology thiab Modular Design Lub kaw lus txais yuav H-bridge topology nrog modular, interchangeable units. Nws cov semi- kaw cov qauv muab cov kev hloov pauv ib puag ncig thiab kev ntseeg siab nruab nrab. Integrated unit nrog bypass muaj nuj nqi nyob rau hauv. |
RNHV series Medium-Variable Variable Speed Drive(VSD)
Tswj txee
Revolutionary tag nrho - hauv - ib tus tswj
Peb lub xeev - ntawm-- kos duab kev tswj hwm, ua ke nrog PLC maub los thiab cov txheej txheem sab hauv thiab sab nrauv, ua kom zoo rau cov txheej txheem txee, ua kom yooj yim ntawm - qhov chaw teeb tsa thiab kev ua haujlwm, thiab ua kom cov khoom siv zoo ib yam.
Tib neeg zoo heev -Machine Interface
Saib xyuas Systems
>Muaj tseeb -xim touchscreen, yooj yim rau kev khiav lag luam
>Tus neeg siv - tus phooj ywg interface nrog cov ntaub ntawv siv tau
>Virtual gauges rau tiag tiag -lub sij hawm tso saib ntawm qhov tseem ceeb sib txawv zaus zaus tsav tsis
>System raws li txoj cai thiab lub hwj chim unit raws li txoj cai saib xyuas
>Tiag -sijhawm thiab keeb kwm cov ntaub ntawv tso tawm, kev tsom xam, thiab kev kuaj xyuas tsis raug
>Parameter teeb tsa thiab ua haujlwm cov ntaub ntawv kaw
>Cov neeg siv kev tso cai teeb tsa rau cov khoom siv ua haujlwm, kev debugging, thiab kev saib xyuas
>Txhawb ntau- hom lus
|
|
|
Tswj System
Lub kaw lus tswj yog lub hauv paus ntawm tag nrho nruab nrab -voltage VSD ceev tswj qhov system. Tag nrho cov haujlwm yog tsim los ntawm kev tswj hwm lub tswv yim, thiab ua tib zoo tsim algorithms kom ntseeg tau tias lub cev muaj zog ua haujlwm hauv nws lub xeev zoo. Tib neeg-tshuab interface (HMI) muab tus neeg siv- tus phooj ywg, saib ntau hom lus thiab kev ua haujlwm interface, thaum tseem txhawb kev saib xyuas tej thaj chaw deb thiab network-raws li kev tswj hwm.
- Cov txheej txheem tswj hwm muaj xws li tus maub los, tib neeg - tshuab interface (HMI), programmable logic controller (PLC), thiab lwm yam. HMI yog lub qhov rais sib txuas lus nruab nrab ntawm -voltage variable-frequency drive system thiab ntawm -cov neeg siv qhov chaw, muab kev yooj yim thiab kev ua haujlwm zoo. Tus maub los siv PWM tswj algorithms, thaum lub tsim - hauv PLC ua qhov kev ua haujlwm ntawm cov teeb liab hloov hauv lub txee, ua kom muaj kev sib cuam tshuam nrog cov neeg siv kom tau raws li cov kev xav tau tshwj xeeb.
- Lub programmable logic controller (PLC) ua haujlwm ntau yam kev hloov pauv -raws li cov cim qhia logic, ntawm - qhov chaw tswj cov cim ntws, thiab cov cim xwm txheej. Qhov no muab qhov sib txawv ntawm - zaus tsav lub zog sib cuam tshuam thiab muaj peev xwm sib txuas lus, uas tuaj yeem nthuav dav raws li cov neeg siv khoom xav tau.
- Lub txee tswj thiab lub zog hluav taws xob sib txuas los ntawm fiber ntau-optic kev sib txuas lus thev naus laus zis, ua kom muaj hluav taws xob sib cais ntawm qhov qis-voltage thiab nruab nrab-voltage seem. Qhov kev teeb tsa no muab kev ntseeg siab, kev sib txuas lus ceev, thiab muaj zog tiv thaiv kev cuam tshuam electromagnetic. Lub txee tswj kuj tseem nruab nrog Uninterruptible Power Supply (UPS) los xyuas kom meej lub zog siv hluav taws xob rau kev tswj hwm.
System Wiring Diagram
|
● Ntau- tshuab kis Thaum ob los yog ntau lub motors siv los tsav ib qho kev sib koom ua ke los ntawm kev sib txuas ua ke, nws yog ib qho tseem ceeb rau synchronize lawv speeds.Txawm li cas los xij, qhov tseem ceeb tshaj yog kom ntseeg tau tias txhua lub cev muaj zog ua kom lub zog sib npaug thiab ua haujlwm ruaj khov raws li cov qauv txheej txheem. Txawm hais tias txhua lub cev muaj zog tau tsav los ntawm nws tus kheej qhov sib txawv - zaus tsav (VFD), lub kaw lus tseem tuaj yeem ua kom muaj kev tswj hwm kev sib tw ceev, nrog rau txhua lub cav kom raug thiab tsim nyog sib koom lub zog ntawm cov khoom siv thauj khoom. |
 |
|
Tus tswv- qhev tswj kev ua haujlwm ntawm qhov sib txawv- zaus tsav tuaj yeem ua tiav cov kev xav tau saum toj no. VFD yuav tsum ua haujlwm hauv vector tswj hom. Txhua tsav hauv lub cev tuaj yeem raug xaiv los ua tus tswv, thaum cov tsav uas tseem tshuav ua qhev. Tus tswv tsav lub kaw lus ceev tswj qhov teeb meem torque tswj cov lus txib, uas tau txais los ntawm cov qhev drives, ib ntus disabling lawv tus kheej ceev tswj loops. Yog hais tias tus tswv tsav lub zog tswj qhov system tsis ua haujlwm, ib qho ntawm cov qhev drives yuav raug nce mus rau tus tswv tshiab. Hauv ntau- tsav tus tswv- kev teeb tsa qhev, fiber ntau- kev sib txuas lus optic yog siv los xa cov lus txib tswj torque.
|
|
|
● Kev tu yooj yim Lub cascaded multilevel topology ntawm chav tsev txais yuav ib tug qauv tsim, featuring ib tug tub rau khoom - hom txee qauv nrog units txuas nrog transformers los ntawm kev sib txuas ceev. Ib qho - sab saib xyuas tsim tso cai yooj yim thiab ua haujlwm tau zoo ntawm cov khoom siv inverter, muab ntau dua practicality thiab yooj yim ntawm kev siv. |
|
Khoom Specifications
| Lub npe | Yam khoom | Specification | ||||||||||||||
| Tswv yim | 1000 Series Fais Fab Kev muab khoom |
3-theem 6kV / 10kV, zaus: 50/60Hz | ||||||||||||||
| Input voltage ntau | Voltage: -10% rau +10%; Ntau zaus: ± 2% | |||||||||||||||
| Tso zis | 1000 Series Rated Voltage |
3-theem 6kV / 10kV, zaus: 50/60Hz | ||||||||||||||
| Ntau zaus modulation ntau yam |
0 j 50/60Hz | |||||||||||||||
| Kev daws teeb meem | 0.01 Hz | |||||||||||||||
| Overcurrent muaj peev xwm |
120% ntawm cov zis tam sim no rau 1 feeb txhua 10 feeb; 150% ntawm cov zis tam sim no rau kev tiv thaiv tam sim. |
|||||||||||||||
| Tswj | Tswj txoj kev | V / F tswj nrog PG vector tswj thiab tsis muaj PG vector tswj. | ||||||||||||||
| Synchronous hloov |
Lub zaus converter ua raws li theem voltage thiab zaus ntawm daim phiaj fais fab, ua tiav lub xeev ntawm daim phiaj kev sib txuas thiab du hloov ntawm zaus converter mus rau lub zog zaus yam tsis muaj kev cuam tshuam |
|||||||||||||||
| Torque nyiaj pab |
Tsis siv neeg torque boost thaum pib mus txog saum 150%. | |||||||||||||||
| Kev them nyiaj poob qis | Compensates rau ceev poob nyob rau hauv load los txhim kho mechanical robustness. | |||||||||||||||
| Sab sauv thiab qis kev txwv ntau zaus |
Sab saum toj thiab qis zaus txwv tuaj yeem teeb tsa. | |||||||||||||||
| Hla zaus | Hla zaus tuaj yeem teeb tsa hauv 3 pawg. | |||||||||||||||
| Lub npe | Yam khoom | Specification | |||
| Tswj | Kev ceev ceev thaum pib dua |
Lub inverter tuaj yeem tshawb nrhiav lub cev muaj zog ceev thiab ua haujlwm zoo rov pib dua thaum lub cev muaj zog yog coasting vim lub zog poob. |
|||
| Acceleration thiab lub sij hawm deceleration |
Lub sij hawm acceleration thiab deceleration tuaj yeem tsim los ntawm 0.1 txog 3600 vib nas this. | ||||
| Acceleration thiab deceleration profile hom |
Linear lossis S- nkhaus profile tuaj yeem xaiv kom tau raws li ntau yam kev thov. | ||||
| Hom kev ua haujlwm | Kev ua haujlwm hauv cheeb tsam, ntawm - chaw ua haujlwm, kev ua haujlwm nyob deb. | ||||
| Txoj kev nres | Kev xaiv xaiv ntawm coasting nres lossis deceleration nres. | ||||
| PID kaw -loop tswj |
Yuav siv tau rau ntau yam kaw - voj tswj lub tshuab xws li khiav, siab, kub, thiab ntau. |
||||
| Neutral drift | Los ntawm kev hla lub zog hluav taws xob thiab siv cov thev naus laus zis tsis sib xws, peb - theem tso tawm nyob twj ywm sib npaug. Qhov no guarantees siab tshaj plaws tso zis zog txawm tias tom qab bypassing ib chav tsev. Li cas a ib zaug -unit tsis ua haujlwm, lub kaw lus tuaj yeem ua haujlwm hauv hom bypass yam tsis muaj kev cuam tshuam ntau lawm kev ua haujlwm. |
||||
| Automatic unit bypass |
Thaum lub tshuab ua haujlwm tsis zoo, lub inverter tuaj yeem hla dhau lub faulty unit thiab txuas ntxiv ua haujlwm - ating siv neutral drift technology yam tsis xav tau kev cuam tshuam ntawm phau ntawv. Yog tias ntau tshaj ob units yog bypassed, cov neeg siv tsuas yog yuav tsum tau khiav lag luam ntawm lub peev xwm txo raws li qhov tsim nyog. |
||||
| Fais fab tuag rov pib dua |
Nyob rau hauv cov kev tshwm sim ntawm ib tug txawv txav fais fab tuag, lub inverter tuaj yeem rov pib dua thiab rov qab los rau nws ua ntej- lub xeev poob hluav taws xob thaum lub phiaj xwm rov qab los hauv lub sijhawm teem tseg, tsis tas yuav tsum muaj phau ntawv qhia kev cuam tshuam. |
||||
| Kev teeb tsa zaus | Analog input teeb liab teeb tsa: Configurable ntawm 4-20mA tam sim no teeb liab. Ntau zaus ntu xaiv qhov chaw. |
||||
| Fieldbus | ModbusđTcp/ipaPROFIBUS-DP | ||||
| Lub xeev ua haujlwm tso zis teeb liab |
Relay tso zis: xaiv tau los qhia txog kev khiav haujlwm xws li khiav, nres, txhaum, thiab lwm yam. Analog tso zis: xaiv tau los qhia txog kev khiav hauj lwm tsis xws li zaus, tam sim no, voltage, ceev, etc. |
||||
| Zaub | Thaum lub sijhawm ua yeeb yam - tion/stop |
Zaub zaus, tam sim no, voltage, thiab lwm yam. | |||
| Thaum teeb tsa | Tso cov ntawv qhia zaub mov los yog teeb tsa tus nqi | ||||
| Thaum ua haujlwm kev ua haujlwm |
Tso cov ntaub ntawv muaj nuj nqi lossis cov lus ceeb toom. | ||||
| Thaum lub tswb nrov, ua txhaum |
Tso tawm ntau lub tswb thiab ua txhaum. | ||||
| Kev tiv thaiv | Kev tiv thaiv overload | Saib xyuas cov zis tam sim no ntawm lub inverter thiab tiv thaiv lub inverter nyob rau hauv cov ntaub ntawv ntawm overload. | |||
| Overvoltage kev tiv thaiv |
Txhawm rau txheeb xyuas qhov overvoltage ntawm DC busbar unit thiab tiv thaiv lub inverter nyob rau hauv cov ntaub ntawv ntawm input overvolt - hnub nyoog. |
||||
| Surge voltage kev tiv thaiv |
Txhawm rau saib xyuas qhov hluav taws xob hluav taws xob ntawm cov kab hluav taws xob nkag thiab kab - mus rau - hauv av, tiv thaiv lub inverter. | ||||
| Hauv qab -voltage kev tiv thaiv |
Txhawm rau saib xyuas qhov input voltage thiab tiv thaiv lub inverter nyob rau hauv rooj plaub ntawm qis dua -voltage. | ||||
| Kev tiv thaiv overheat | Txhawm rau saib xyuas qhov kub thiab txias ntawm lub dab dej kub thiab tiv thaiv lub inverter thaum nws tshaj qhov teeb tsa tus nqi. |
||||
| Luv -circuit kev tiv thaiv |
Txhawm rau saib xyuas luv luv lossis overcurrent ntawm cov zis sab ntawm lub inverter, tiv thaiv lub inverter. | ||||
| Lub cev muaj zog tshaj kev tiv thaiv |
Saib xyuas lub cev muaj zog rau overload thaum lub sijhawm ua haujlwm thiab tiv thaiv lub cev muaj zog. | ||||
| Qhib theem kev tiv thaiv |
Saib xyuas cov input voltage rau theem poob thiab tiv thaiv lub inverter. | ||||
| Ib puag ncig- lus |
Qhov chaw siv | Sab hauv tsev, ntawm qhov siab tshaj 1000 meters, tsis muaj corrosive lossis flammable gases; dawb los ntawm hmoov av, roj pos huab, dej tee dej, thiab lwm yam., tiv thaiv tshav ntuj ncaj qha, thiab tsis muaj zog sib nqus cuam tshuam. Qhov siab tshaj 1000 meters yuav tsum tau derating siv. |
|||
| Kev khiav haujlwm kub |
-5¥j +40¥ | ||||
| Ua haujlwm av noo | 5 j 95% RH (tsis yog -condensing) | ||||
| Kev vibration | Tsawg dua los yog sib npaug li 0.5g | ||||
| Cia tempera - ture |
-40¥j +70¥ | ||||
| Ingress tiv thaiv kev ntaus nqi |
IP30 (Thov qhia lwm qhov kev tiv thaiv kev ntsuas thaum xaj) | ||||
RNHV1000 Product Selection Table
| Inverter qauv | Rated hluav taws xob (kV) |
Rated tam sim no (A) |
Lub cev muaj zog kev sib raug zoo (kW) |
Tso zis muaj peev xwm (kVA) |
Qhov ntev (W * D * H mm) (nrog rau tus kiv cua) |
Qhov hnyav (kg) |
||||||
| RNHV-A-10/220 | 10 | 16 | 220 | 280 | 1800*1500*2550 | 2200 | ||||||
| RNHV-A-10/250 | 10 | 18 | 250 | 315 | 2200 | |||||||
| RNHV-A-10/280 | 10 | 20 | 280 | 350 | 2200 | |||||||
| RNHV-A-10/315 | 10 | 23 | 315 | 400 | 2200 | |||||||
| RNHV-A-10/355 | 10 | 26 | 355 | 450 | 2200 | |||||||
| RNHV-A-10/400 | 10 | 30 | 400 | 500 | 2250 | |||||||
| RNHV-A-10/450 | 10 | 32 | 450 | 560 | 2300 | |||||||
| RNHV-A-10/500 | 10 | 35 | 500 | 630 | 2350 | |||||||
| RNHV-A-10/560 | 10 | 40 | 560 | 700 | 2400 | |||||||
| RNHV-A-10/630 | 10 | 45 | 630 | 800 | 2000*1500*2580 | 2680 | ||||||
| RNHV-A-10/710 | 10 | 50 | 710 | 900 | 2850 | |||||||
| RNHV-A-10/800 | 10 | 60 | 800 | 1000 | 2950 | |||||||
| RNHV-A-10/900 | 10 | 65 | 900 | 1120 | 3190 | |||||||
| RNHV-A-10/1000 | 10 | 75 | 1000 | 1250 | 3400 | |||||||
| RNHV-A-10/1120 | 10 | 80 | 1120 | 1400 | 3940 | |||||||
| RNHV-A-10/1250 | 10 | 90 | 1250 | 1600 | 2200*1700*2620 | 4310 | ||||||
| RNHV-A-10/1400 | 10 | 100 | 1400 | 1750 | 4390 | |||||||
| RNHV-A-10/1600 | 10 | 115 | 1600 | 2000 | 4500 | |||||||
| RNHV-A-10/1800 | 10 | 130 | 1800 | 2250 | 4550 | |||||||
| RNHV-A-10/2000 | 10 | 145 | 2000 | 2500 | 4600 | |||||||
| RNHV-A-10/2240 | 10 | 160 | 2240 | 2800 | 4630 | |||||||
| RNHV-A-10/2400 | 10 | 170 | 2400 | 3000 | 4630 | |||||||
| RNHV-A-10/2500 | 10 | 180 | 2500 | 3150 | 4630 | |||||||
| RNHV-A-10/2800 | 10 | 200 | 2800 | 3500 | 3600*1750*2850 | 7400 | ||||||
| RNHV-A-10/3000 | 10 | 215 | 3000 | 3750 | 7450 | |||||||
| RNHV-A-10/3150 | 10 | 225 | 3150 | 3940 | 7500 | |||||||
| 6kv ua | ||||||||||||
| RNHV-A-6/220 | 6 | 26 | 220 | 280 | 1800*1500*2550 | 2150 | ||||||
| RNHV-A-6/250 | 6 | 30 | 250 | 315 | 2150 | |||||||
| RNHV-A-6/280 | 6 | 35 | 280 | 350 | 2150 | |||||||
| RNHV-A-6/315 | 6 | 40 | 315 | 400 | 2150 | |||||||
| RNHV-A-6/355 | 6 | 45 | 355 | 450 | 2150 | |||||||
| RNHV-A-6/400 | 6 | 50 | 400 | 500 | 2150 | |||||||
| RNHV-A-6/450 | 6 | 55 | 450 | 560 | 2000*1500*2580 | 2200 | ||||||
| RNHV-A-6/500 | 6 | 60 | 500 | 630 | 2250 | |||||||
| RNHV-A-6/560 | 6 | 70 | 560 | 700 | 2300 | |||||||
| RNHV-A-6/630 | 6 | 75 | 630 | 800 | 2350 | |||||||
| RNHV-A-6/710 | 6 | 85 | 710 | 900 | 2400 | |||||||
| RNHV-A-6/800 | 6 | 100 | 800 | 1000 | 2200*1700*2620 | 3800 | ||||||
| RNHV-A-6/900 | 6 | 110 | 900 | 1120 | 3900 | |||||||
| RNHV-A-6/1000 | 6 | 120 | 1000 | 1250 | 4000 | |||||||
| RNHV-A-6/1120 | 6 | 130 | 1120 | 1400 | 4100 | |||||||
| RNHV-A-6/1250 | 6 | 150 | 1250 | 1600 | 4200 | |||||||
| RNHV-A-6/1400 | 6 | 170 | 1400 | 1750 | 4230 | |||||||
| RNHV-A-6/1500 | 6 | 180 | 1500 | 1900 | 4230 | |||||||
| RNHV-A-6/1600 | 6 | 195 | 1600 | 2000 | 3000*1750*2850 | 5900 | ||||||
| RNHV-A-6/1800 | 6 | 215 | 1800 | 2250 | 6000 | |||||||
Cov cheeb tsam thov
|
|
Lub zog cog
Cua turbine / Compressor / Pumped hydro cia cog / Draft kiv cua / Condensate twj tso kua mis / Circulating dej twj tso kua mis / Boiler feedwater twj, ym. |
|
|
Roj, Petrochemicals, Natural gas
Pipeline hloov twj tso kua mis / Txhaj twj tso kua mis / Feedwater twj tso kua mis / Submers - ible roj twj / Circulating dej twj tso kua mis / Brine twj tso kua mis / Compressor / Booster ntxuam / Roj hloov twj tso kua mis / Fais submersible twj tso kua mis, thiab lwm yam. |
|
|
Coal, Mining
Kev tshem tawm cov twj tso kua mis / Slurry twj tso kua mis / Slag slurry twj tso kua mis / dej ntshiab twj tso kua mis / Pub twj tso kua mis / Axial flow kiv cua / Agitation twj tso kua mis / Kiln / Transmis - sion / plua plav tshem tawm kiv cua / Dej twj tso kua mis / Media twj tso kua mis / Counter-ro- kiv cua, thiab lwm yam. |
|
|
Cov khoom siv cement
Kiln induced cua ntsawj ntshab / Kiln yuam cua ntsawj ntshab / Kiln tail kiv cua / Kiln taub hau ntxuam / Nruab nrab- kiv cua kub / Coal zeb ntxuam / plua plav tshem tawm kiv cua / Circu- lating ntxuam / Raw khoom sib tsoo kiv cua / Cement sib tsoo kiv cua / Separa- tor kiv cua / Siab conveying kiv cua, thiab lwm yam. |
|
|
Hlau thiab metallurgy
Blast furnace blower / induced cua ntsawj ntshab ntxuam / compression kiv cua / cua muab kiv cua / feedwater twj / dej twj tso kua mis / descaling twj tso kua mis / plua plav tshem tawm kiv cua / converter / moj tej tawg rauv / thiab lwm yam. |
|
|
Municipal dej muab
Aeration blower (rau cua sov, dej, dej phwj tuaj, thiab lwm yam) / induced cua ntsawj ntshab ntxuam / cua muab kiv cua / booster twj tso kua mis / dej kub ncig twj tso kua mis / dej twj tso kua mis / dej twj tso kua mis / nqa twj tso kua mis / dej twj tso kua mis / reclaimed dej twj tso kua mis, thiab lwm yam. |
|
|
Lub teeb kev lag luam, tshuaj lom neeg kev lag luam
Coal gas blower / booster twj / compressor / axial flow pump / mos twj tso kua mis / dej twj tso kua mis, thiab lwm yam. |
Cim npe nrov: Tuam Tshoj nruab nrab voltage vsd manufacturers, lwm tus neeg, Hoobkas