ADVANTAGES OF THE PILOT GENERATOR
Excitation systems of generators including a pilot generator have a more simple and more rational design than the compound excitation systems and provide to the set a larger reliability
DESIGN OF THE PILOT GENERATOR
Magnets : Samarium Cobalt - very stable, high coercive magnetic field
Stability of the voltage in process of time
Stability of the voltage afler a short-circuit
Dismantling without voltage loss : no irreversible demagnetisation
Large number of solutions : pole number, size for the machines
Supplying of the required power to the regulator under any condition of the running of the main generator
MECHANICAL CHARACTERISTICS
Frame, endshields : aluminium, cast iron or steel according the solutions·
Machine with bearings
Mounting : IM 1001 or 3001 or 3601 (low shaft height)
Floating mounting or
Rotor / Stator fitted inside the frame or outside the main generator
Cooling : IC 00, IC 01, IC 0041 or IC 0141
Protection : IP 00, IP 23, IP 44 or IP 55
Insulation class F
Temperature rise class F or B : 100 K or 80 K
Ambient temperature : 40°C or others
According to the required speeds and mounting modes
(Rotor/Stator) : binding of the rotors (magnets) : either metallic or carbon fibre
ELECTRICAL CHARACTERISTICS
maximum economical values Three phase or Single phase
Voltage U eff. <500 V
Power S eff. < 60 kVA
Frequency F <400 Hz
Power Factor : 0 < cos phi < 1
Distorsion < 5% (No-load and Full load)
PRECILEC RADIO-ENERGIE alternators WIND PMG equip with the wind turbine of small power. Our Permanent Magnet Generator charge the battery to ensure the power supply of the isolated places, off-line to an electrical grid local.
ADVANTAGES OF OUR DESIGN
Our design is reliable, simple and compact
Our know-how is the integration of rare earths magnets. They are very stable, with high coercive magnetic field and high specific energy
Stability of the voltage in process of time
No voltage loss even after a short-circuit
Our design allows an optimal output according to the required configuration
Dismantling without voltage loss: no irreversible demagnetisation
Large number of solutions: pole number, size for the machines which allow to consider all your demanding space requirements
Mechanical interface is optimized
Highest power-to-weight ratio
In direct drive without speed multiplier or gear
No maintenance needed for machine without bearings
Maintenance limited to bearings only for machine with bearings
ELECTRICAL CHARACTERISTICS
Maximum economical values
Three phase or Single phase
Voltage U eff. max 500 V (between phases)
Power P mech. max 20 kW
Frequency F max 400 Hz
Power Factor: cos phi 0 < cos phi < 1
Distortion max 5% (No-load and Full load)
Rated speed max 3000 rpm
MECHANICAL CHARACTERISTICS
Cooling: IC 00, IC 01, IC 0041 or IC 0141
Protection: IP 00, IP 23, IP 44 or IP 55
Insulation class F
Temperature rise class F or B: 100 K or 80 K
Ambient temperature: 40°C or others
According to the required speeds and mounting modes (Rotor/Stator): binding of the rotors (magnets): either metallic or carbon fibre
The PMA-Series DC-Mini servo actuators consist of a Harmonic Drive box in mini or super-mini size combined with a DC servo motor and feedback device. All sizes are available with an incremental encoder. The size 8,11 and 14 are also available with a holding brake, as option. Major features of these actuators are:
Advantages:
- Zerobacklash positioning in low power applications
- Easy adaptation to readily available servo controllers via incremental Encoder feedback
- 12V/24V DL-Power supply
- Combination of DC-mini-motor and precision gear
- Torque range up to 20 Nm
- Speed range up to 180 rpm
- Repeatability about ± 1 arcmin
- Available in 4 sizes with ratio 50:1 - 110:1; with encoder
