GH / DH / MD / MMT DC machines 2 kW – 10 MW, up to 1500 V
Country: Italy · Model: GH / DH / G / MD 800 / MMT
DC motors and generators from 2 kW to 10 MW for voltages up to 1500 V, in 22 shaft heights and almost 100 frame sizes. The GH, DH, G, MD 800 / MDL 800 and MMT series run in rolling mills, paper machines, cranes, excavators and ship propulsion systems. The frame is laminated, and the supply can come from any DC converter system.
- Overall range
- 2–6000 kW per the website; MMT series up to 10 000 kW
- GH
- 50–1600 (1700) kW, up to 800–900 V, 4–6 poles, frame size 200/225–630 mm, 0.4–13 t
- DH
- 100/700–2500 kW, up to 1000 V, 6–8 poles, frame size 500/710–900 mm, 4.5–35 t
- G
- up to 250 kW, 520–600 V, 2–4 poles, frame size 80–200 mm
Technical specifications
| Overall range | 2–6000 kW per the website; MMT series up to 10 000 kW |
|---|---|
| GH | 50–1600 (1700) kW, up to 800–900 V, 4–6 poles, frame size 200/225–630 mm, 0.4–13 t |
| DH | 100/700–2500 kW, up to 1000 V, 6–8 poles, frame size 500/710–900 mm, 4.5–35 t |
| G | up to 250 kW, 520–600 V, 2–4 poles, frame size 80–200 mm |
| MD 800 / MDL 800 | up to 500 kW, up to 500 V, frame sizes 804–824 (AISE, rolling mill duty) |
| MMT | up to 10 000 kW, up to 1500 V, 6–24 poles, stator up to Ø 5500 mm, up to 150 t |
| Insulation | class H; compensating winding on frame sizes above 225 |
| Cooling | IC06, IC17, IC37, IC410, IC666, IC86W (forced ventilation) |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
These machines are still chosen for their high dynamics, wide speed control range, high maximum speeds and high commutation capability during current transients. The insulation is class H, and machines larger than frame size 225 always have a compensating winding. Mounting is horizontal or vertical, and cooling in the GH series is forced only, IC06, IC666, IC86W, IC37 or IC17. The modular design allows the mounting version, cooling system and degree of protection to be selected. The manufacturer carries out reverse engineering of obsolete machine types, as well as repair and modernization. Typical installations are main and auxiliary drives of rolling mills, hoisting machines and test stands.
How to choose
The series is selected by power and voltage. GH at 50–1600 kW (up to 1700 kW per the brochure) and DH at 700–2500 kW (from 100 kW per the brochure) cover most drives. For low power up to 250 kW there is the G, for small rolling mills the MD 800 / MDL 800 up to 500 kW, and the most powerful machines up to 10 000 kW are built on the MMT.
Request a price and lead time
GH / DH / MD / MMT DC machines 2 kW – 10 MW, up to 1500 V. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What are the parameters of the GH and DH series?
GH is 50–1600 kW, up to 800–900 V, 4–6 poles, frame sizes 200/225–630 mm, weight 0.4–13 t. DH is 700–2500 kW, up to 1000 V, 6–8 poles, frame sizes 500/710–900 mm, weight 4.5–35 t.
How do the G, MD 800 and MMT differ?
G is up to 250 kW, 520–600 V, 2–4 poles, frame sizes 80–200 mm. MD 800 / MDL 800 is up to 500 kW, up to 500 V, frame sizes 804–824 (split frame) and 810–816 (laminated), armored rolling-mill type motors per AISE. MMT is up to 10 000 kW, up to 1500 V, 6–24 poles, stator diameter up to 5500 mm, weight up to 150 t.
What cooling do the DC machines of this range have?
In the GH series it is forced only, designated IC06, IC666, IC86W, IC37, IC17. The specification also lists IC410.
Can an obsolete DC machine be replaced?
Yes, the manufacturer replaces obsolete machine types based on reverse engineering, and the service division repairs and modernizes them.
What insulation and winding do these machines have?
The insulation is class H, and frame sizes above 225 always have a compensating winding.
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Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.