MJV / MJHV – Low Voltage (MJV) / Medium Voltage (MJHV) Generators
(Equipment / Material)
Condition: New
Made in: Italy
Location or Storage Country: Italy
Service Engineering Support: Yes
Warranty: Yes, Standard IEC 60034‑1, BS 4999‑5000, NEMA MG 1.32 compliance; UL/CSA certification available on request
Price: Call for price
Description:
The MJV / MJHV series comprises high‑performance generators designed for power generation and standby/emergency applications. The MJV series operates at Low Voltage, while the MJHV series is designed for Medium Voltage applications. These generators deliver power up to 10000 kVA at voltages up to 15000 V. They are available in frame sizes from 315 to 1250, with 4 to 12 poles, and operate at 50 or 60 Hz. The generators feature a protection degree of IP44 (up to IP56 on request) and cooling method IC 611. They are designed to operate in ambient temperatures from -15°C to +60°C. The automatic voltage regulator (AVR) varies by frame size: E‑Vo up to frame 630; MGC II above for Low Voltage (Vn ≤ 6900 V); MGC I up to 560 and MGC II above; D‑Vo Light for Medium Voltage (Vn > 6900 V). Bearing options include antifriction bearings or sleeve bearings (on request).
Overview:
| Series | MJV (Low Voltage) / MJHV (Medium Voltage) |
| Power | Up to 10000 kVA |
| Voltage | Up to 15000 V |
| Frame Size | 315 to 1250 |
| Poles | 4 to 12 |
| Frequency | 50/60 Hz |
| Protection Degree (IP) | 44 (up to 56 on request) |
| Cooling Method (IC) | 611 |
| Ambient Temperature | -15°C to +60°C |
| AVR | E‑Vo (up to 630); MGC II (LV above); MGC I/MGC II (LV ≤6900V); D‑Vo Light (MV >6900V) |
| Bearing | Antifriction or sleeve (on request) |
| Options | |
| Flanged shaft for direct coupling with engine flywheel (single bearing) | Reinforced construction for high linear vibrations |
| Neutral point terminals in separate terminal box | Raised feet to match engine baseframe dimensions (B20 – IM1101) |
| Dedicated current transformer on neutral point (differential protection and measurement) | Insulated bearing and earthing brush |
| Excitation/overboosting PMG mounted on generator | Arrangement for rotor earth fault protection 64R |
Marelli Motori S.r.l.
Locations: Via Sabbionara 1, 36071 Arzignano (VI), Italy
Main Products/Services: Electric motors (low and medium voltage), generators, frequency converters, alternators up to 13 MW, 15 kV, and 50 tons