Description
YR YRKK YRKS series medium size high voltage wound rotor slip ring asynchronous motor are used to drive steel rolling mill, sugar rolling mill, cement mill, windlass, press machinery, crusher, stock-removing, drawbenchs and other general-purpose machinery. They can serve as the prime movers in steel, mines, mechanical industries, blower, compressor, transportation, building materials industry, etc field.
* Advantages:
High efficiency,
Energy-saving,
Low Noise,
Low vibration,
High start torque,
Low start current,
Light weight and reliable performance.
Easy for installation and maintenance.
* Technical parameter:
Power range:100kw-10000kw
Frame Size:355-1000mm
Rated Voltage: 380v~760v, 2.4 kv, 3 Kv 3.3 KV, 4160 V, 6 Kv 6.6 KV, 10 KV, 11 KV
Pole: 4, 6, 8, 10, 12
Speed: 1500rpm, 1000rpm, 750rpm, 600rpm, 500 rpm –for 50Hz power supply
1800rpm, 1200rpm, 900rom, 720rpm, 600 rpm — for 60Hz power supply
Protection Class: IP23, IP44, IP54, IP55
Cooling type: IC01, IC611, C616, IC81W
* Operation conditions:
Altitude: =< 1000m;
Ambient temperature: -15- 40ºC
Input power frequency: 50Hz±l%;
Voltage: ±5% rated voltage;
Duty: S1( continuous).
Comparison of different series Medium voltage and High Voltage AC motors
| No. | Squirrel-cage motor | Y JS | YKK | YKS | Y2, Y3 |
| Slip ring motor | YR JR JR2 | YRKK | YRKS | YR2, YR3 | |
| 1 | Structure | Box-type construction, made up of steel plates welded with each other | Compact struction | ||
| 2 | Cooling method | IC01 or (IC11, IC21, IC31) | IC611 or IC616 | IC81W | IC411 |
| 3 | Natural ventilation, with top mounted protection cover | With top mounted air-air cooler | With top mounted air-water cooler | ||
| 4 | Protection type | IP23 | IP44, IP54, IP55 | IP44, IP54, IP55 | IP54, IP55 |
| 5 | Insulation | F | |||
| 6 | Mounting arrangement | IMB3, IMV1, IMB35 | |||
| 7 | Voltage available | 380 v, 2400 v, 3kv, 3.3kv; 4160 v, 6kv, 6.6kv; 10kv, 11kv | |||
| 8 | Frequency available | 50Hz , 60Hz | |||
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