For sale three-phase asynchronous generator alternator ANSALDO SISTEMI INDUSTRIALI HAS ONLY WORKED 2000 HOURS COMPLETE WITH INSULATION AND COVERING Type: GSCB 1120 Z4 N°: 8006162 YEAR: 2001 POWER: 29680 KWA RPM: 1500 RPM FREQUENCY: 50+-2.0% HZ 11000+-5% V EXC. 81.9 V LEAKAGE SPEED: 1800 RPM CURRENT: 1558 A ETC. 7.3 A COS § 0.80 WEIGHT 52600 KG

Technical Sheet and Detailed Description of the Ansaldo Sistemi Industriali GSCB 1120 Z4 Alternator

1. General Description

The Ansaldo Sistemi Industriali GSCB 1120 Z4 alternator is a powerful industrial synchronous generator designed for applications that require high performance and reliability. This alternator, built in 2001, is specifically designed for high energy demand industrial environments and has only worked for 2000 hours, making it a great choice for those looking for a high quality used one. With a nominal power of 29,680 kVA and a rotation speed of 1500 rpm, it is ideal for powering large systems or for use in critical situations where energy continuity is fundamental. It is complete with insulation and cover to ensure safe operation and protection from the elements.

2. Technical Specifications

• Type: GSCB 1120 Z4
• Serial number: 8006162
• Year of Construction: 2001
• Nominal Power: 29,680 kVA
• Rotation Speed: 1500 rpm
• Frequency: 50Hz ± 2.0%
• Output Voltage: 11,000V ±5%
• Rated Current: 1558 A
• Cos φ: 0,80
• Excitation Current: 7.3 A
• Excitation Voltage: 81.9 V
• Escape Speed: 1800 rpm
• Weight: 52,600 kg
• Working Hours: 2000 hours
• Insulation: Yes, complete
• Coverage: Yes, comprehensive

3. Composition of the Machine

The Ansaldo GSCB 1120 Z4 alternator consists of the following main components:

• Stator: Fixed part of the generator, contains the windings that produce the output voltage when the rotor turns.
• Rotor: Mobile part of the generator, connected to the excitation system to create the rotating magnetic field necessary for energy generation.
• Excitation System: Includes the exciter and electronic components that regulate the rotor excitation current to keep the output voltage stable.
• Bearings: Support the rotor and reduce friction during rotation, ensuring smooth operation.
• Cooling System: Complete with insulation to keep the operating temperature within safe limits, preventing overheating.
• Control Panel: Includes all devices for monitoring and controlling the generator, such as voltmeters, ammeters, and protection systems.
• Frame and Structure: Robust construction that supports the entire system and protects it from external stresses.

4. Use and Optimization

How to use it:

1. Installation:

   • The alternator must be mounted on a stable and level base, with adequate ventilation and space for cooling.
   • Connect the output terminals to power distribution systems.
   • Connect the excitation system to the control panel.

2. Startup:

   • Start the excitation system to create the magnetic field in the rotor.
   • Bring the alternator to the nominal speed of 1500 rpm.
   • Monitor the parameters via the control board to ensure the voltage and frequency are stable.

3. Operation:

   • The alternator starts generating power when the rotor spins within the magnetic field of the stator.
   • Continuously monitor current, voltage and operating temperature to avoid overloading or overheating.
   • The power output can be adjusted via the excitation system, by changing the rotor excitation current.

When to use it:

• Powering Large Plants: Ideal for factories, power plants or large industrial plants that need a reliable and powerful energy source.
• Critical Situations: Perfect as a backup generator in case of interruptions in the main electricity grid.
• Environments with Constant Energy Requirements: Applications where a continuous and stable energy flow is necessary for the operation of industrial machinery.

Materials he works with:

• Electrical Energy: Being a generator, the alternator converts mechanical energy into electrical energy, so it does not "process" materials in the traditional sense, but produces electricity to power various types of industrial machinery and equipment.

Formulas for process optimization:

• Apparent Power (S):
  S=V×IS = V \times I
  $S$ $=$ $V$ $\times$ $I$ Where:

  • SS $S$ is the apparent power in kVA,
  • VV $V$ is the output voltage in kV,
  • II $I$ is the current in A.

• Reactive Power (Q):
  Q=S×sin⁡(θ)Q = S \times \sin(\theta)
  $Q$ $=$ $S$ $\times$ $\sin$ $($ $\theta$ $)$ Where:

  • QQ $Q$ is the reactive power in kVAR,
  • θ\theta $\theta$ is the phase shift angle between voltage and current.

• Active Power (P):
  P=S×cos⁡(θ)P = S \times \cos(\theta)
  $P$ $=$ $S$ $\times$ $\cos$ $($ $\theta$ $)$ Where:

  • PP $P$ is the active power in kW,
  • cos⁡(θ)\cos(\theta) $\cos$ $($ $\theta$ $)$ is the power factor.

5. Maintenance

Ordinary Maintenance:

• Bearing Inspection: Regularly check rotor bearings to ensure they are well lubricated and free from excessive wear.
• Cleaning the Cooling System: Make sure the cooling system is clean and free of obstructions to avoid overheating.
• Excitation System Verification: Monitor the functionality of the excitation system and check the current and voltage values ​​to maintain stable operation.

Extraordinary Maintenance:

• Insulation Check: Regularly check the integrity of the insulation to prevent heat dispersion and ensure operational safety.
• Control Panel Calibration: Perform periodic calibrations of the control panel to ensure accurate readings and timely response of the protection system.

6. Alternatives and Considerations for Purchasing a Used Vehicle

Alternatives:

• Next Generation Electric Generators: Consider newer electric generators that offer superior energy efficiency and advanced digital control systems.
• Generators Powered by Renewable Sources: For applications where sustainability is a priority, generators that use renewable energy sources (such as wind turbines or photovoltaic systems) could be a valid alternative.

Choosing a Used One:

• Working Hours: Carefully check the number of operating hours, preferring machines with few hours of use, as in the case of this Ansaldo.
• State of Insulation and Covering: Check that the insulation and cover are in excellent condition, as these elements are crucial for the safe operation of the machine.
• Documentation and Maintenance History: Request the maintenance booklet and check that all necessary interventions have been carried out, in order to ensure that the machine is in excellent condition.

Why it is better to buy used:

• Economic Savings: Buying a used alternator can lead to significant savings compared to purchasing a new one, especially if the machine has been used little.
• Proven Reliability: A used, well-maintained alternator with a low number of operating hours offers the same reliability as a new one, at a lower cost.
• Ready Availability: Unlike a new model which may require waiting times for production and delivery, a used one is immediately available and operational.

Ansaldo Sistemi Industriali GSCB 1120 Z4 alternator is an excellent solution for those looking for a powerful and reliable generator, suitable for a wide range of industrial applications. Thanks to its robust construction, the low number of hours of use and the presence of insulation and coverage, it represents an advantageous opportunity for those who want to purchase a high-quality used vehicle, with the certainty of being able to count on high and long-lasting performance.