These special motors have the high slip and high torque that oil well beam pumping units demand. W22 Design D motors are requested on specifications for most major oil companies around the world as a result of their long lasting performance, low purchase and maintenance cost.
| Standard |
NEMA MG-1 |
| Frequency |
60 Hz |
| Voltage |
208-230/460 V |
| Number of poles |
6 |
| Degree of Protection |
IP55 |
| Synchronous speed |
1200 rpm |
| Output rating |
10 HP |
| Mounting |
F-2 |
| Flange |
Without |
| Terminal box¹ |
Right position |
| Enclosure |
IC411 - TEFC |
Electric Motors
| Frame |
254/6T |
| Output |
10 HP (7.5 kW) |
| Number of Poles |
6 |
| Frequency |
60 Hz |
| Rated speed |
1085 rpm |
| Slip |
9.58 % |
| Rated voltage |
208-230/460 V |
| Rated current |
28.8-26.0/13.0 A |
| L. R. Amperes |
175-159/79.3 A |
| LRC |
6.1x(Code H) |
| No load current |
8.51-7.70/3.85 A |
| Rated torque |
48.4 ft.lb |
| Locked rotor torque |
320 % |
| Breakdown torque |
0 % |
| Locked rotor time |
28s (cold) 16s (hot) |
| Moment of inertia (J) |
4.37 sq.ft.lb |
| Design |
D |
| Insulation Class |
F |
| Service factor |
1.15 |
| Temperature rise |
80 K |
| Duty Cycle |
Cont.(S1) |
| Starting Method |
Direct On Line |
| Ambient temperature |
-20°C to +40°C |
| Altitude |
1000 m.a.s.l. |
| Degree of Protection |
IP55 |
| Enclosure |
IC411 - TEFC |
| Mounting |
F-2 |
| Rotation¹ |
Both (CW and CCW) |
| Noise level² |
59.0 dB(A) |
| Approx. weight³ |
298 lb |
Efficiency
| 50% |
82.5 |
| 75% |
84.0 |
| 100% |
82.5 |
Power factor
| 50% |
0.78 |
| 75% |
0.86 |
| 100% |
0.88 |
Features
| Frame Material |
Cast Iron |
| Impregnation Method |
Dip and Bake Polyester |
| Regreasing System |
At Drive end and Non-drive end |
| Main terminal box hole |
NPT 1 1/2" |
| Terminal Block |
Without |
| Shaft Locking Device |
Without |
| Drain |
Rubber, automatic |
| Shaft Material |
SAE 1040/45 Carbon Steel |
| Painting |
RAL 9010 203A (ISO 12944 - C2) |
| Grounding Lugs |
Single |
| Fan Cover material |
Cast Iron |
| Tropicalized Painting |
Without |
| Fan material |
Plastic |
| Bearing cap |
Yes- Bearing Cap |
| Drip Cover |
Without |
| Overload protector (phenolic) |
Without overload protector |
| Connection Cables Quantity |
12 |
Features
| Frame Material |
Cast Iron |
| Impregnation Method |
Dip and Bake Polyester |
| Regreasing System |
At Drive end and Non-drive end |
| Main terminal box hole |
NPT 1 1/2" |
| Terminal Block |
Without |
| Shaft Locking Device |
Without |
| Drain |
Rubber, automatic |
| Shaft Material |
SAE 1040/45 Carbon Steel |
| Painting |
RAL 9010 203A (ISO 12944 - C2) |
| Grounding Lugs |
Single |
| Fan Cover material |
Cast Iron |
| Tropicalized Painting |
Without |
| Fan material |
Plastic |
| Bearing cap |
Yes- Bearing Cap |
| Drip Cover |
Without |
| Overload protector (phenolic) |
Without overload protector |
| Connection Cables Quantity |
12 |
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