Three-phase electric motor: H17R-400-8 400KW 6000V 50HZ
| Basic technical data | |
| Motor type | H17R 400-8 |
| Rated power (kW) | 400 |
| Frame size (mm) | 400 |
| Number of poles | 8 |
| Rated speed (rpm) | 739 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6 000 |
| Connection | Y |
| Rated current (A) | 50,1 |
| Efficiency at 100% load (%) | 95,2 |
| Power factor at 100% load | 0,81 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 5169 |
| Locked-rotor torque ratio (LRT/RLT) | 0,9 |
| Breakdown torque ratio (BDT/RLT) | 1,9 |
| Locked-rotor current ratio (LRA/RLA) | 4,6 |
| Rotor moment of inertia (kg·m²) | 15 |
| Accessories | |
| 6 x PT100 in winding | |
| 1 x PT100 in NDE bearing | |
| 1 x PT100 in DE bearing | |
| Anti-condensation heater 230 V | |
| 3 x PTC thermistor | |
| Applicable standards | |
| Specification | IEC60034-1 |
| Testing | IEC60034-2 |
| Noise | IEC60034-9 |
| Vibration | IEC60034-14 |
| Construction and operating data | |
| Mounting arrangement | IM B3 (other designs on request) |
| Duty type | S1 |
| Load type | Parabolic or linear curve |
| Degree of protection | IP55 |
| Insulation class | F |
| Temperature rise class | B |
| Cooling method | IC411 |
| Starting method | DOL, VFD, Soft-starter |
| Direction of rotation | Both |
| Vibration (mm/s) | 2.8 |
| Rotor cage | copper bar |
| Terminal box type | VYBO CB1-HV |
| Operating conditions | |
| Ambient temperature range (°C) | -20 to +40 (-30, +50, +60 optional) |
| Maximum installation altitude | up to 1000 m |
| Weight and surface finish | |
| Approximate weight | 4200 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6326-C3/6326-C3 |
| Lubricant | Li based, no.2 class |
The design of the H17R 400-C-8-6 model is prepared for high power density in operations where available space and continuity of operation are decisive. This 700 rpm electric motor in the 400 kW version provides reserve capacity for technological units that cannot stop because of overheating, oscillation or unnecessary service interventions. In practice, it is a solution that fits well into the concept of a 6000 V electric motor for modern 6 kV industrial drives.
Compact 6 kV motor for large technologies
The main advantage is the compact design, which makes it possible to fit full output into a frame where other solutions would require greater changes to the line layout. In a machine room, pumping station or technological node, this means easier integration and lower installation-space requirements. This three-phase electric motor therefore appeals especially to operators who need to combine output with practical installation without compromises in drive design.
Eight-pole operation for smooth running
The lower-speed configuration is suitable wherever pulling force, stability and coordination with process media or mechanical load are important. As an eight-pole electric motor, it helps maintain an even operating profile during long production cycles and when connected to equipment with higher inertia. For OEM manufacturers of large technological units, such characteristics are important when designing assemblies intended to operate without frequent maintenance intervention.
Copper rotor for long service life under continuous load
Copper strip in the rotor cage improves motor behaviour under thermal stress and contributes to lower losses during operation. In a segment where every kilowatt-hour affects production costs, such a detail is a practical benefit to the long-term economics of the entire drive. This makes the motor well suited to applications where long service under repeated starts, high load and higher ambient temperatures is expected.
Optional protection against demanding environments can meet requirements for dust-tightness and increased water resistance. In practice, this assists use in mining sections, material-treatment plants, outdoor technological blocks and operations with more aggressive atmospheres. VYBO Electric has years of experience with motor solutions for sectors where operational reliability is judged by real results in the field.
Temperature control and bearing solution for long service intervals
Insulation class F together with temperature rise B create a good basis for long-term operation at rated load. 6326-C3 bearings on both the DE and NDE sides support stable operation of the rotor assembly and reduce the risk of premature wear when maintenance is appropriately designed. The model is therefore suitable for applications where continuous use is expected and where shutdown planning is based on the condition of the technology.
Accessories for motor monitoring and protection
If required, the motor can be supplemented with 6xPT100 in the winding, 1xPT100 in the NDE bearing, 1xPT100 in the DE bearing, an anti-condensation heater and a 3xPTC thermistor. Such equipment simplifies supervision of the thermal regime and assists integration into control systems for larger lines.
Use in heavy industrial operations
The H17R 400-C-8-6 model is suitable wherever a robust drive with convincing reserve capacity for stable continuous operation is needed. It fits various technological assemblies where torque, thermal resistance and resistance to external influences are decisive. Typical uses include the following applications:
- Main raw-water pumps in industrial water treatment plants.
- Fan units in cement-kiln lines.
- Crushing units in quarries and stone-processing operations.
- Stack extraction fans in power-generation units.
- Rolling drives in metallurgical operations.
- Mixing equipment in large-volume chemical reactors.
- Conveyor drives in mines with long material routes.
- Compressor systems for process air in plants.
- Dewatering pumps in surface mining.
- Rotary dryers in bulk-material processing.
Choice for projects where operational reliability is decisive
If you need a motor for large technology, H17R 400-C-8-6 provides a combination of output, compact installation and suitable operating reserve for demanding use. For the design of a new solution or replacement of an existing drive, contact us.