Company Marelli Motori has developed a wide range of models of AC hydro generators of various designs and a wide range of power values up to 9,500 kVA covering low, medium and high levels. An excellent solution for hydroelectric power plants, they are installed on any type of turbine (bucket, radial-axial, rotary-blade, Turgo, cross-flow).
Generator design MJRT It is enclosed in a rigid frame made of durable steel and additional stiffeners for even greater strength. Cast iron body (grey and with spherical graphite), forged shaft made of laminated carbon steel, diameter from 290 mm and above, design on request. The stator/rotor windings are coated with unsaturated polyester and polyamide resins, insulation class – H (synthetic enamel). Protection against radio interference of class B (EN 55011).
The heat exchanger is installed in the upper part, consists of a double pipe (CuNi 90/10, copper plates), equipped with a water leakage sensor. Nominal operating pressure is 6 bar (tested at 10 bar), power up to 200 kW, flow rate up to 18 cubic meters /hour, fresh water. Installation in horizontal and vertical positions, individual offers on request.
Technical characteristics of the MJRT series of synchronous hydrogenators with a sealed shell with water/air cooling (TEWAC).
- Rated power: up to 5000 kVA;
- Rated operating voltage: up to 1000 V;
- Industrial frequency: 50 Hz (European standard)/60 Hz (North American standard);
- Overall height: 250 – 900 mm;
- Mounting design: IM 1001, IM 1101, IM 3011 in accordance with IEC 60034-7;
- The degree of protection of the case: IP44, optional up to IP56;
- Degree of protection: IC 81W /IC 86W;
- Insulation class: H;
- Temperature class: H/H;
- Standard sizes: on request, the number of poles is from 4 to 20.
Additional snap-in options hydroMARELLI MOTORI generators of the MJRT series:
- reinforced construction to protect against linear vibration;
- flange shaft for direct connection to the turbine runner;
- the neutral terminals are located in a separate box;
- increasing the degree of protection to IP 56;
- rectifier for 12 diodes;
- insulated bearing, grounding brushes;
- AVR microcontrollers are optional in digital and analog versions, digital AVR MEC100, MEC100D with diode fault monitoring;
- device for vibration sensors;
- flywheel and locking device of the dedicated braking system;
- lubrication system for the sliding bearing;
- other options at the request of the customer.
Make a choice and buy hydro generators MARELLI MOTORI MR our engineers will help you at a reasonable price, get professional advice on the saluteh contact number or send a request to our saluteh email.
