SIEMENS 8500 HP 6900 Volt

8500 HP Variable Frequency Drive

Perfect Harmony GH180

Input: 6900 Volt, 60Hz, 3PH, 595A

Output: 0-6900 Volt, 0-66Hz, 3PH, 660

Dimensions: 308″ W x 54″ D x 129″

Condition: New

Upgraded with the NXGPro controls

18 Power Cells

New 8500HP VFD Available for Immediate Sale

Clean input power: The Siemens Perfect Harmony GH180 8500 HP VFD with 6900 Volt features a clean input power, which helps to protect the drive and the electrical system from disturbances. This is achieved through the use of a filter that removes harmonics and other unwanted transients from the input voltage. This helps to extend the lifespan of the drive and the electrical system, and it also reduces noise and vibration.

Sinusoidal output power (waveforms): The Siemens Perfect Harmony GH180 8500 HP VFD with 6900 Volts produces sinusoidal output power waveforms, which are gentle on motors and other equipment. This helps to extend the lifespan of motors and other equipment, and it also reduces noise and vibration. Additionally, the sinusoidal output power waveforms help to improve the efficiency of the drive and the motor, which can save energy costs.

Maximized availability: The Siemens Perfect Harmony GH180 8500 HP VFD with 6900 Volts is designed for maximum availability, with features such as cell bypass and cell redundancy. Cell bypass allows the drive to continue operating even if one or more power cells fail. Cell redundancy provides additional protection against failures by allowing the drive to continue operating even if two power cells fail. This helps to ensure that the drive will be available even if there are problems with the electrical system.

Extended reliability: The Siemens Perfect Harmony GH180 8500 HP VFD with 6900 Volts is built with proven components and technologies, which helps to extend its lifespan. The drive also features a number of features that help to protect it from damage, such as overvoltage protection and thermal protection. These features help to ensure that the drive will last for many years without any significant problems.

Exceptional input line performance: The Siemens Perfect Harmony GH180 8500 HP VFD with 6900 Volts has excellent input line performance, which helps to reduce harmonics and improve power quality. This is achieved through the use of a filter that removes harmonics and other unwanted transients from the input voltage. The drive also features a number of other features that help to improve power quality, such as a voltage sag compensator and a reactive power compensation function. These features help to ensure that the drive will not cause any problems with the electrical system, and they can also help to reduce energy costs.

Ease of installation and maintenance: The Siemens Perfect Harmony GH180 8500 HP VFD with 6900 Volts is easy to install and maintain, thanks to its modular design and intuitive user interface. The drive also features a number of features that help to simplify installation and maintenance, such as a built-in diagnostic system and a remote maintenance function. These features help to reduce the time and cost of installation and maintenance, and they also help to ensure that the drive will be operating correctly.

Drive topology: The Siemens Perfect Harmony GH180 8500 HP VFD with 6900 Volts uses a cell-based topology, which makes it scalable and flexible. This means that the drive can be easily scaled up or down to meet the specific needs of the application. The cell-based topology also makes the drive more reliable, as it allows for the failure of individual cells without affecting the overall operation of the drive. This helps to ensure that the drive will be able to meet the needs of the application, even if there are changes in the future.

Proven IGBTs: The Siemens Perfect Harmony GH180 8500 HP VFD with 6900 Volts uses proven IGBTs, which are known for their reliability and efficiency. IGBTs are a type of semiconductor that is used to switch high voltages and currents. They are known for their high reliability and efficiency, and they are also relatively easy to manufacture. This helps to ensure that the drive will be able to operate reliably for many years.

Linked power cells: The Siemens Perfect Harmony GH180 8500 HP VFD with 6900 Volts uses linked power cells, which helps to improve availability and reliability. Linked power cells are connected in parallel so that if one cell fails, the other cells can continue to provide power to the drive. This helps to ensure that the drive will not experience a loss of power even if one or more cells fail. This helps to ensure that the drive will be able to operate reliably even if there are problems with the power supply.

Optimized synchronous transfer: The Siemens Perfect Harmony GH180 8500 HP VFD with 6900 Volts uses optimized synchronous transfer, which helps to reduce downtime during power outages. The optimized synchronous transfer is a feature that allows the drive to synchronize with the main power when it is restored after a power outage. This helps to minimize the downtime that is experienced during power outages. This helps to ensure that the drive will be able to resume operation quickly after a power outage.

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Frequently Asked QUestions

How many power cells does the Siemens 6900V 8500 HP Variable Frequency Drive have?

The Siemens Perfect Harmony VFD has 18 power cells.

What happens if a power cell in the Siemens Perfect Harmony GH180 8500 HP 6900 V Variable Frequency Drive fails?

The Siemens VFD remains operational using the cell bypass option, maintaining uptime and minimizing downtime.

What are the dimensions of the Siemens Perfect Harmony GH180 6900V 8500 HP VFD?

The Dimensions for the Siemens Perfect Harmony GH180 6900V 8500 HP Variable Frequency Drive are: 308″ W x 54″ D x 129″.

What is the best Variable Frequency Drive for my application?

The “best” VFD for your application depends entirely on your specific needs, including the motor type, load characteristics, desired performance level, and operating environment, but some well-regarded options include brands like Toshiba, Siemens, WEG, and Yaskawa for more complex industrial applications; always consider factors like power rating, control features, and compatibility with your motor when making a selection. IC-Spares is able to help you make this selection so contact us today!

What motor types can be used with a Siemens 6900V 8500 HP Variable Frequency Drive?

Siemens VFDs can be used with the following types of motors:

  •     Induction motors: Siemens VFDs are commonly used with induction motors, suitable for various applications due to their ability to provide variable speed control and significant power.
  •     Synchronous motors: Siemens 6900V Variable Frequency Drives can be used when precise constant speed is needed, such as with a synchronous motor.
  •     Sensorless vector motors: A Siemens 8500 HP VFD offers good speed control and low-speed torque with independent voltage and frequency control for sensorless vector motor applications.
  •     Servo motors: For high precision applications requiring precise positioning, a Siemens Perfect Harmony GH180 Variable Frequency Drive is an option. 

How do Siemens VFDs reduce maintenance costs?


By minimizing wear and tear on motors through precise speed control and smooth start/stop operations, the Siemens 6900V 8500 Horsepower Variable Frequency Drive is able to reduce maintenance costs.

Do Siemens VFDs support real-time monitoring?

Yes, the Siemens Perfect Harmony GH180 6900V 8500 HP Variable Frequency Drive integrates seamlessly with automation systems like PLCs and SCADA for real-time monitoring and control.

What are the common cooling methods for Siemens Perfect Harmony GH180 Variable Frequency Drives?

Common cooling methods for Siemens Perfect Harmony VFDs include air cooling and water cooling.