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Medium voltage converter
Perfect Harmony GH150

The Innomotics Perfect Harmony GH150 is the ideal drive for applications in the medium voltage range of 4 - 13.8 kV. It offers maximum flexibility with four different cooling versions and highest availability due to optional redundant cells and ultra-fast bypass switch. The Innomotics Perfect Harmony GH150 is equipped with the latest version of Inspire IQ to allow remote access to live data on site.

Benefits at a glance

  • Power cell redundancy to increase reliability
    Maximize your process availability thanks to an optional cell bypass and redundant cells (options for n+1 and n+2 cell redundancy available). High-speed cell bypass feature maintains a reliable and balanced output voltage without torque or speed reduction

  • Flexibility in cooling with 4 different cooling types
    Flexible to meet any customer cooling requirements, independent of site conditions.
    • Direct water-cooled
    • Direct air-cooled
    • Indirect air-cooled (air / air heat exchanger)
    • Indirect water-cooled (air / water heat exchanger)

  • Remote diagnostics
    The Innomotics Perfect Harmony GH150 drives will be equipped with the latest version of Inspire IQ components and have therefore access to all digital products of LDA. This includes the possibility collect remote onsite data and provide this information “live” to the control station.

  • Extremely motor friendly
    Innomotics Perfect Harmony GH150 with its M2C topology have virtually sinusoidal voltage on the output side. The motor friendliness of the drive is perfect for retrofits and long motor cable application

 

  • Flexibility in respect to transformer type
    The transformer can be chosen according to specific requirements. In most cases the transformer is placed in an outdoor transformer bay, thus eliminating the need for active cooling and E-House space for the transformer, also reducing the fire load within the building. In most cases oil cooled (ONAN/KNAN) transformers are used. However, the transformer can also be placed indoor if required (e.g. for offshore applications). The use of dry type transformers is also possible

  • Separation between control and power unit possible
    The control unit can be placed up to 50m away from the power section of the drive and can thus be placed in a different room which does not contain any Medium Voltage equipment.
    This will allow access to the control unit also to operators that are not certified for working with medium voltage, thus allowing the customer to use his personnel more flexible.

  • Distributed DC-Link capacitors
    Any voltage-source inverter (VSI) is equipped with the DC-Link capacitors as a temporary energy storage. With M2C topology the capacitors are distributed within the power cells and not concentrated as one large capacitor, as in 3-level or 5-level VSI drives.
    Thus the fault energy is distributed and much lower for every individual capacitor. In case of a failure that affects a capacitor the effects are very local and far easier to fix

  • Low noise emissions
    The almost sinusoidal output current of the drive is very favorable for the noise level of the attached motor

Innovative Modular-Multilevel-Converter Technology for Medium Voltage Drives

  • Maximum flexibility in converter configuration
  • Line and motor friendly; suitable for virtually every motor type
  • Perfect system design due to optimal scalability of the converters in terms of voltage, redundancy and power output
  • Best-in-class optional cell redundancy (n+1 or even n+2)
  • Drive system availability of 99 %

The Innomotics Perfect Harmony Drives – original and unmatched by others

  • Compatible with all motor types
  • For long cable length up to 2300 m
  • Redundant components in cooling system and advanced cell-by-pass for unrivaled level of reliability and availability
  • Enhanced ride-through capability in case of input voltage sag
  • Meet IEEE 519-1992 requirements for voltage and current harmonic distortion
  • Ready for the digital future with extended integrated monitoring

Technical data overview

Internal air-cooled

Cooling methods

  • Direct air-cooled with ducting option
  • Integral air-to-air heat exchanger
  • Integral air-to-water heat exchanger

Output voltage 4.16 kV
(24 cells)
6.6 kV – 6.9 kV
(36 cells)
10.0 kV – 11.0 kV
(54 cells)
13.2 kV – 13.8 kV
(66 cells)
Type rating 6 – 10 MVA
7 – 15 kHP
10 – 18 MVA
12 – 24 kHP
15 – 26 MVA
18 – 35 kHP
20 – up to 35 MVA
25 – up to 45 kHP
(more with dual circuit)
Cell current rating 1000 A, 1100 A, 1300A, 1400 A, 1500 A
Drive quadrants Drive two-quadrant operation (driving without regenerative feedback, 2 directions of rotation)
Topology Cell based topology (option: redundant cells with cell bypass)
Transformer Separate transformer (default is oil-filled)
Rectifier Pulses 24 pulse standard, higher number of pulses for 10kV – 13.8 kV on request
Cooling methods
  • Direct air-cooled with ducting option
  • Integral air-to-air heat exchanger
  • Integral air-to-water heat exchanger
Temperature
  • Air-to-Air Heat Exchanger: 40 ºC max outside temperature for A/A-HEX, higher with derating
  • Indirect Water Cooling with air-to-water heat exchanger: 35 ºC max water intake temperature, higher on request
Sound Pressure < 85 dB(A)
Type of protection

IP42 air-cooled
IP54 air-to-air heat exchanger, integral air-to-water heat exchanger

Control modes Vector control for induction motors and synchronous motors (incl. high speed motors)
Access
  • Cable entry: top & bottom
  • For maintenance: front access only sufficient

 

Direct water-cooled

Output voltage 4.16 kV – 7.2 kV
(24 – 48 cells)
10.0 kV – 11.0 kV
(54 – 72 cells)
Type rating 4 – 30 MVA (dual circuit)
5.4 kHP – 40.2 kHP (dual circuit)
19 – 47 MVA (dual circuit)
25.5 kHP – 63 kHP (dual circuit)
Cell current rating 700 A, 1200 A
Drive quadrants Drive two-quadrant operation (driving without regenerative feedback, 2 directions of rotation)
Topology Cell based topology (option: redundant cells with cell bypass)
Transformer Separate transformer (default is oil-filled)
Rectifier Pulses 12, 18, 24, 36
Cooling methods Direct water-cooled
Temperature

Ambient: +5 °C … +45 °C (up to 50 °C brief operation on request)
Permissible raw water intake temperature: +5 °C … +35 °C (up to +46 °C optionally)

Sound Pressure

Standard: < 77 dB(A)
Option IP44: < 70 dB(A)

Type of protection

IP43 standard
IP44 as option

Control modes Vector control for induction motors and synchronous motors (incl. high speed motors)
Access
  • Cable entry: bottom
  • For maintenance: front access only sufficient

Our brands

CURRAX has been focusing on cooperation with strong partners for years. SIEMENS and FLENDER are a conscious commitment to quality and service.

Years of cooperation have affirmed their mutual trust, allowing us to set the optimal conditions for our customers.

 

Contact

Reception
Tel.: +49 40 808194300
e-Mail: Reception@currax.net

Sales Support
Tel.: +49 40 808194310
e-Mail: Sales@currax.net

Customer Service
Tel.: +49 40 808194350
e-Mail: Customerservice@currax.net

Ordermanagement
Tel.: +49 40 808194360
e-Mail: Ordermanagement@currax.net