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 You are here  >> All Pictures >> Drilling Rig Components and Accessories >> DC and AC motor
DC and AC motor

 DC  motor

We  successfully  developed  the  nation's  first  DC  and  AC  asynchrounous  oil-drilling  motors  with  variable  frequency  in  1998,  which  markedthe  end  of  the  history  of  dependenct  on  imported  motors.  The  achievement  filled  the  gap  in  domestic  oil-drilling  motors.  The  company  take  responsibility  for  working  on  the  national  industry  standard  of  oil-drilling  motors.
DC&AC  oil-drilling  motors  ranging  from  200kw  to  1600kw  have  over  23  power  series  and  160  types,  which  can  be  equipped  in  the  1000m-12000m  drilling-rigs  of  both  the  land  and  oceans.  The  company's  oil  products  are  widely  distributed  in  14  Petroleum  Administrative  Bureaus  in  China  and  are  exported  to  USA,  Russia,  Kazakhstan,  Iran,  Saudi  Arabia  and  Egypt,  etc.

Description

YZ08  and  YZ08A  DC  motors  are  applied  to  mud  pump,  rotary  table,  winch  etc.(Qty:  660  from  2001-2015)

Parameter

Rated  Power:800kW

Rated  Voltage:750V

Rated  Current:1150A

Rated  Speed:970r/min

Rated  Torque:8033N•m

Power  Factor:92.70%

Insulation:H

Mass:3200kg

 AC motor

 

General
WD23F9  motors  apply  for  dragging  and  controlling  of  voltage  supply  type  frequency  converter  and  can  be  used  for  driving  lift  winch,  mud  pump  and  figure  plate  etc.  of  drilling  machine,  they  can  also  be  used  as  drag  motor  for  other  varying  frequency  speed  regulating  device.
Structure  features
The  structure  of  WD23F9  motors  is  horizontal,  single  standard  extension  shaft  three  phase  cage  asynchronous  motor.  Extension  taper  is  1:9.6  with  oil  slots  for  removing  coupler  by  hydraulic  force.  The  motor  is  forced-ventilation  type  with  blower.
Grade  Safety  IP44  of  Motor  is  force-ventilated  motor,  which  blower  motor  has  two  poles  and  is  blast  motor  (EX  Ⅱ  BT4),  which  should  use  in  no  acetylene  environment.
Stator  core  is  laminated  with  circular  punching  laminations  of  0.5mm  high  quality  cold-rolled  silicon  steel  sheet.  The  motor  frame  is  of  steel  sheet  welded  structure.  There  is  axial  ventilating  duct  between  core  back  and  motor  frame.  Stator  coils  are  conductors  taped  with  FCR  fusing  film. 
Bus  ring  is  wounded  with  copper  busbar.  After  insulating  wrap,  four  bus  rings  shall  be  fixed  on  the  core  press  ring  through  supporting  and  clamping  unit.  Winding  leads  are  connected  with  bus  rings  terminals  by  high-strength  bolts,  and  the  leads  are  marked  respectively  with  U,  V,  W  phases. 
The  frame  heads  are  of  easting  structure.  Rotor  is  of  copper  bar  squirrel-cage  structure  where  there  are  double-row  axial  ventilating  ducts.  Conductor  bar,  end  ring,  protective  ring  are  all  made  of  special  high-strength  copper  alloy.
Basic data
Main  Specifications

Main  Specification

Type

WD23F9/F9X1/F10

Rated  Power

kW

600

Rated  Voltage

V

600

Rated  Current

A

714

Rated  Efficiency

%

95

Rated  Frequency

Hz

33.5

Rated  Speed

r/min

661

Rated  Torque

N·m

8670

Max.  Constant  Power  Speed

r/min

1240

Pole

 

6

Insulation  Class

class

200

Ventilation

 

Forced-ventilation

Duty

 

continue

Degree  of  Protection  of  Enclosure

 

IP44

Type  of  Protection

 

ExIIT3

Temperature  Rise  Limits

Motor  Parts

Measuring  Method

Allowable  Temperature  Rise(K)

Stator  Windings

Resistance

200

Bearing

Thermometer

55


Bolt  Fasten  Torque

Bolt  Diameter

M6

M8

M10

M12

M16

Fasten  Torque  (N·m)                               

7±1

20±3 

37±5

62±7

155±15

Bolt  Diameter

M20

M22

M24

M33

 

Fasten  Torque  (N·m)

300±20

340±24

700±36

1300±65

 


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