Our Services
• Design, engineering and manufacturing of custom made equipment
• Application engineering
• Electrodynamic laboratory testing
• Reconstruction and repairs
• Energy efficiency analysis
• Prototype manufacturing of motors, generators and power systems
Some of examples of our design and reconstruction services:
Generator Reconstruction: Standard Doubly-Fed Wound Rotor 750 kW
| KW |
750 |
| Power Factor |
1.0 & 0.9 lead |
| Poles |
6 |
| Frequency |
60 Hz |
| Primary Volts |
460 V |
| Type |
Wound rotor with slip rings |
| Operating RPM |
800-1400 |
| Rotor / Stator winding ratio |
2.76 |
| Enclosure |
NEMA Open Drip Proof ODP |
| Temperature Rise |
105 °C NEMA Class “F” |
| Insulation Class |
180 °C NEMA Class “H" |
| Winding Construction |
Form wound coils |
| Frame |
749 |
Performance Summary Before/After Reconstruction
| |
Before |
After |
| Efficiency Performance at 0.9 PF leading (true full load) |
92.92 |
96.06 |
| Efficiency Performance at 1.0 PF (unity) |
93.90 |
97.04 |
Temperature Rise ROTOR 1000MASL 0.9 lead
(method of embedded thermal couple) 1.0 |
190 °C
90 °C |
99 °C
39 °C |
Temperature Rise ROTOR 1000MASL 0.9 lead
(method of Resistance) 1.0 |
180 °C
80 °C |
90 °C
30 °C |
Temperature Rise STATOR 1000 MASL 0.9 lead
(method of embedded RTDs) 1.0 |
190 °C
130 °C |
117 °C
80 °C |
Temperature Rise STATOR 1000MASL
0.9 lead
(method of Resistance) 1.0 |
180 °C
120 °C |
108 °C
71 °C |
Generator Reconstruction: Standard Doubly-Fed Wound Rotor 750 kW
| KW |
750 |
| Power Factor |
1.0 & 0.9 lead |
| Poles |
6 |
| Frequency |
60 Hz |
| Primary Volts |
460 V |
| Type |
Wound rotor with slip rings |
| Operating RPM |
1314 |
| Rotor / Stator winding ratio |
2.76 |
| Enclosure |
NEMA Open Drip Proof ODP |
| Temperature Rise |
105 °C NEMA Class “F” |
| Insulation Class |
180 °C NEMA Class “H" |
| Winding Construction |
Form wound coils |
| Frame |
749 |
Performance Summary Before/After Reconstruction
| |
Before |
After |
| Efficiency Performance at 0.9 PF leading (true full load) |
93.40 |
94.10 |
| Efficiency Performance at 1.0 PF (unity) |
94.60 |
95.10 |
Temperature Rise ROTOR 1000MASL 0.9 lead
(method of embedded thermal couple) 1.0 |
180 °C
140 °C |
138 °C
100
°C |
Temperature Rise ROTOR 1000MASL 0.9 lead
(method of Resistance) 1.0 |
170 °C
130 °C |
129 °C
91
°C |
Temperature Rise STATOR 1000 MASL 0.9 lead
(method of embedded RTDs) 1.0 |
140 °C
110 °C |
86 °C
79
°C |
Temperature Rise STATOR 1000MASL
0.9 lead
(method of Resistance) 1.0 |
130 °C
100 °C |
76 °C
69 °C |
Generator Design: Potencia Industrial Doubly-Fed Wound Rotor 750 kW
| kW |
750 |
| Poles |
6 |
| Frequency |
60 Hz |
| Primary Volts |
460 V |
| Type |
Wound rotor with slip rings |
| Operating RPM |
800-1400 |
| Rotor / Stator winding ratio |
2.76 |
| Enclosure |
NEMA Open Drip Proof ODP |
| Temperature Rise |
80°C NEMA Class “B” |
| Insulation Class |
155 °C NEMA Class “F" |
| Winding Construction |
Form wound coils |
| Frame |
750 |
Standard vs. Potencia Industrial Comparison
| |
Standard |
Potencia Industrial |
| Efficiency Performance at 0.9 PF leading (true full load) |
92.92 |
97.00 |
| Efficiency Performance at 1.0 PF (unity) |
93.90 |
97.20 |
Temperature Rise ROTOR 1000MASL 0.9 lead
(method of embedded thermal couple) 1.0 |
190 °C
90 °C |
39.7 °C
30.0 °C |
Temperature Rise ROTOR 1000MASL 0.9 lead
(method of Resistance) 1.0 |
180 °C
80 °C |
54.0 °C
40.5 °C |
Temperature Rise STATOR 1000 MASL 0.9 lead
(method of embedded RTDs) 1.0 |
190 °C
130 °C |
48.8 °C
40.0
°C |
Temperature Rise STATOR 1000MASL
0.9 lead
(method of Resistance) 1.0 |
180 °C
120 °C |
40.0 °C
31.3
°C |
Generator Reconstruction: Standard Doubly-Fed Wound Rotor 660 kW
| KW |
660 |
| Poles |
4 |
| Frequency |
60 Hz |
| Primary Volts |
2460 V |
| Type |
Wound rotor with opti-slip control |
| Operating RPM |
1815 |
| Enclosure |
TEFC |
Performance Summary Before/After Potencia Reconstruction
| |
Before |
After |
| Efficiency Performance |
94.99 |
95.66 |
| Power Factor |
89.10 |
91.80 |
ROTOR Losses (kW) |
5.30 |
4.83 |
STATOR Losses (kW) |
4.08 |
3.50 |
Core Losses (kW) |
8.895 |
5.085 |
Temperature Rise STATOR 1000 MASL
|
100 °C |
76.9 °C |
| Temperature Rise ROTOR 1000 MASL |
105 °C |
72.9 °C |
Generator Design: Potencia Industrial Doubly-Fed Wound Rotor 660 kW
| kW |
660 |
| Poles |
4 |
| Frequency |
60 Hz |
| Open Circuit Rotor Voltage |
2550 V |
| Type |
Wound rotor with slip rings |
| Operating RPM |
1815 |
| Enclosure |
TEFC |
Standard vs. Potencia Industrial Comparison
| |
Standard |
Potencia Industrial |
| Efficiency Performance |
94.99 |
96.34 |
| Power Factor |
89.10 |
89.30 |
ROTOR Losses (KW) |
5.30 |
5.21 |
STATOR Losses (KW) |
4.08 |
3.29 |
Core Losses (KW) |
8.895 |
6.000 |
Temperature Rise STATOR 1000 MASL
|
100 °C |
76.1 °C |
| Temperature Rise ROTOR 1000 MASL |
105 °C |
76.1 °C |
|
