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 |
3 HP |
| Mounting |
F-2 |
| Flange |
Without |
| Terminal box¹ |
Right position |
| Enclosure |
IC411 - TEFC |
Electric Motors
| Frame |
213/5T |
| Output |
3 HP (2.2 kW) |
| Number of Poles |
6 |
| Frequency |
60 Hz |
| Rated speed |
1050 rpm |
| Slip |
12.50 % |
| Rated voltage |
208-230/460 V |
| Rated current |
11.0-9.96/4.98 A |
| L. R. Amperes |
49.6-44.8/22.4 A |
| LRC |
4.5x(Code G) |
| No load current |
6.08-5.50/2.75 A |
| Rated torque |
15.0 ft.lb |
| Locked rotor torque |
350 % |
| Breakdown torque |
0 % |
| Locked rotor time |
36s (cold) 20s (hot) |
| Moment of inertia (J) |
0.6841 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 |
55.0 dB(A) |
| Approx. weight³ |
142 lb |
Efficiency
| 50% |
74.0 |
| 75% |
75.5 |
| 100% |
74.0 |
Power factor
| 50% |
0.56 |
| 75% |
0.67 |
| 100% |
0.75 |
Features
| Frame Material |
Cast Iron |
| Impregnation Method |
Dip and Bake Polyester |
| Main terminal box hole |
NPT 1" |
| Terminal Block |
Without |
| Shaft Locking Device |
Without |
| Drain |
Rubber, automatic |
| Shaft Material |
SAE 1040/45 Carbon Steel |
| Painting |
RAL 9010 207A (ISO 12944 - C2) |
| Grounding Lugs |
Single |
| Fan Cover material |
Steel |
| Tropicalized Painting |
Without |
| Fan material |
Plastic |
| Bearing cap |
No-Without Bearing Cap |
| Balancing Method |
1/2 Key |
| Drip Cover |
Without |
| Overload protector (phenolic) |
Without overload protector |
| Connection Cables Quantity |
9 |
Features
| Frame Material |
Cast Iron |
| Impregnation Method |
Dip and Bake Polyester |
| Main terminal box hole |
NPT 1" |
| Terminal Block |
Without |
| Shaft Locking Device |
Without |
| Drain |
Rubber, automatic |
| Shaft Material |
SAE 1040/45 Carbon Steel |
| Painting |
RAL 9010 207A (ISO 12944 - C2) |
| Grounding Lugs |
Single |
| Fan Cover material |
Steel |
| Tropicalized Painting |
Without |
| Fan material |
Plastic |
| Bearing cap |
No-Without Bearing Cap |
| Balancing Method |
1/2 Key |
| Drip Cover |
Without |
| Overload protector (phenolic) |
Without overload protector |
| Connection Cables Quantity |
9 |
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