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As the demand for power and raw materials continues to grow, U.S. manufacturers are faced with an increasing number of operational challenges. For some, it’s the remote location of their plants; others have harsh environments to consider. But although operating conditions are never perfect, your process has to be — because in today’s competitive market, downtime is not an option. That’s why there’s SINAMICS PERFECT HARMONY.
Harsh-Environment Drive Solutions
Too see more information about Siemens all-weather systems that promote VFD efficiency and durability in any environment, download our brochure.
The maintenance of a medium voltage drive train system can be challenging. The equipment in the drive train is often exposed to extreme stresses subject to varying levels of wear and tear. These strains can remain invisible to the naked eye until it is too late, leading to outages and unplanned downtime.
With Siemens Drive Train Analytics, customers can breathe easy knowing that Siemens experts are continuously monitoring and analyzing the health and operating conditions of their drive train equipment remotely from our Service & Support Center. Siemens provides valuable insight into equipment health as a service to maintenance personnel, which enables them to be notified and to act, often before the equipment breaks down. It’s like having your own drive train expert on staff – working together with maintenance personnel 24/7 and taking care of your drive train equipment with real-time intelligence.
No other VFD can match the proven reliability and 20-year lifespan of SINAMICS PERFECT HARMONY medium voltage drives. And because greater reliability leads to less downtime and lower maintenance costs, the SINAMICS PERFECT HARMONY VFD also outstrips the competition when it comes to total cost of ownership (TCO). In the white paper below, we analyze the intricacies involved in calculating TCO and the elements that affect it. Download the white paper to learn more about:
When it comes to large rotating equipment, medium-voltage variable frequency drives (VFDs) offer a significant opportunity to save on operating and maintenance costs. SINAMICS PERFECT HARMONY VFDs are a particularly cost-effective solution because they can be applied to both new and retrofit installations. By matching the motor speed to the load, VFDs conserve electrical energy, thereby reducing the total cost of operation. Download the white paper to learn more about:
Advancements made in the development of drive technologies means users have a myriad of options when selecting a drive system. Low voltage (LV) variable frequency drives (VFDs) have been applied to applications up to 2500 horsepower (HP). Medium voltage (MV) VFDs have been applied to applications as low as 150 HP. Traditional power system design practice suggests that motor crossover from low voltage to medium voltage is in the 200-600HP range. A recent industrial customers' survey in 2016 shows that some customers consider switching from a LV to MV solution as low as 100HP. So how do you know which drive system to choose?
The white paper, "Cost considerations when selecting a Variable Frequency Drive Solution", explores this topic in-depth. It illustrates a system cost comparison, and considers such factors as system efficiency, cost of installation (cables and out put filters), cost of power quality and cost of input harmonics. A case study - low and medium voltage solutions in an Electrical Submersible Pump (ESP) application - is featured.
We have been working with medium voltage drives since they were first introduced into industrial applications over a half century ago. Over the past 50+ years we have manufactured virtually every topology of medium voltage drive that currently exists today. This expertise led us to create and continuously innovate our SINAMICS PERFECT HARMONY product line to meet your high availability requirements and overall application needs.
Both the air-cooled and liquid-cooled configurations integrate 50+ patented technologies that have been proven to increase the dependability and efficiency of critical processes. We manufacture all Siemens SINAMICS PERFECT HARMONY drives in the U.S. at our New Kensington, PA facility.
The SINAMICS PERFECT HARMONY GH180 drive sets the standard for reliability. It draws on decades of experience with a wide range of industry applications – including more than 80 types of pumps, 34 types of fans, and a dozen different compressors – to deliver the most reliable variable frequency drive (VFD) available today.
Every element of a SINAMICS PERFECT HARMONY GH180 drive is engineered to maximize productivity and protect your process in a way that other drives can’t. Designed in both liquid-cooled and compact air-cooled configurations, SINAMICS PERFECT HARMONY medium voltage variable frequency drives (VFDs) deliver superior versatility, efficiency and process availability for the most demanding applications.
And because reliability is a paramount concern for today’s manufacturers, Siemens equipped the SINAMICS PERFECT HARMONY drive with 50+ patented technologies proven to increase the dependability of critical processes. The drive’s modularity provides a scalable solution that achieves near-100 percent reliability and 99.99 percent availability, resulting in a significantly reduced total cost of ownership over the drive’s lifecycle. A series cell configuration even allows the drive to withstand failures that would overwhelm conventional drives and shut down the plant process.
In less than a quarter of a second, the SINAMICS PERFECT HARMONY GH180 drive can bypass multiple failed cells to maintain a balanced output voltage. With one cell in bypass, the drive still produces sufficient voltage to allow the process to continue uninterrupted, and the quality of the voltage and the waveform remain virtually unchanged.
With a proven record of 99.99 percent process uptime, ProToPS™ protects your process from faulty sensors or data. Unlike typical systems that simply trip the drive and automatically shut down the system due to a malfunction, ProToPS™ offers a proactive control strategy for applications where failure avoidance is critical.
SINAMICS PERFECT HARMONY drives meet the most stringent IEEE-519-2014 requirements for voltage and current harmonic distortion. An integrated sinusoidal converter not only eliminates the need for harmonic filters, power factor correction capacitors or extra bus capacity, but also protects other online equipment from harmonic disturbances.
No drive offers a higher-quality waveform output than SINAMICS PERFECT HARMONY. With 21 levels of nonharmonic output voltage, it accommodates any standard motor without requiring additional output or dv / dt filters – which can reduce efficiency and reliability – and it provides the lowest peak voltage to the motor windings to help extend motor life.
Only SINAMICS PERFECT HARMONY drives are engineered to operate reliably in environments with ambient temperatures ranging from -40° C to +50° C. No other drive can tolerate such a broad range of extreme conditions. An optional PDC allows the drive to withstand even the harshest outdoor conditions, from tropical environments to ocean platforms.
SINAMIC PERFECT HARMONY drives are designed to deliver maximum reliability, and the SINAMICS PERFECT HARMONY GH150 is no exception. What sets it apart is its unparalleled versatility. Its separate transformer and control cabinet promote a more flexible plant layout while also allowing for free transformer selection.
SINAMICS PERFECT HARMONY GH150 drives are specially designed to offer greater versatility and easy integration. Their modular design enables the use of a separate transformer as well as a separate control cabinet. The modular design creates an adjustable footprint that allows for a more flexible plant layout. The control cabinet can even be installed in a low-voltage operator’s room for facilitated operation of the drive.
The SINAMICS PERFECT HARMONY GH150 raises the standards for transformer flexibility in cell-based medium voltage drives: By allowing for different transformer specifications – such as cooling, size, pulse number and primary voltage – it can accommodate site conditions that require remote placement of the transformer, either inside or outside the plant. The SINAMICS PERFECT HARMONY GH150 can also help minimize initial investment cost for electrical room air conditioning as well as continuous operating costs. The ability to choose a locally sourced standard transformer may even help reduce the total cost of ownership.
The SINAMICS PERFECT HARMONY GH150 drive is often used with high-speed compressors or integrated compressors that need high output frequencies. The higher the motor speed, the higher the required VFD output frequency. With its inherent and highly effective switching frequency, the SINAMICS PERFECT HARMONY GH150 drive requires little-to-no derating, which means less oversizing and higher efficiency. Additional losses in the motor are often.
With over twenty years of experience operating in a medium-voltage environment, Siemens has set the standard in medium voltage drive safety by offering a fully reinforced structural arc solution.
Siemens has always upheld the highest quality and safety standards in the manufacturing of medium voltage drives, but we are now taking safety a step further. Siemens Arc Defense Technology is the first in the industry to apply passive arc-resistant features to medium voltage drives with integral transformers. Smart upgrades such as pressure-relief panels and custom arc filters help to contain dangerous arc energy in the event of an arc occurrence.
Though not yet mandatory, arc resistance requirements are right around the corner. Siemens first began arc-fault-testing its medium voltage drives in 1998. Ever since, all Siemens medium voltage drives have been — and continue to be — rigorously tested and certified to the most current safety standards, including IEC, UL and CSA.
Siemens Arc Defense Technology helps direct the hazards of arc events away from personnel and plant equipment to mitigate damage and allow a faster return to normal operations. The result is a highly efficient, fault-tolerant drive that can help limit operational losses and prepare you for future regulations.
Siemens has developed a range of modular solutions that not only offers complete protection in challenging environments but also offers greater flexibility, protection, simplicity and saving than traditional solutions. This help you extend the life and increase the efficiency of your drive.
Depending on your drive’s Hp, you can choose from three harsh-environment solutions that can be placed anywhere up to 2.3 km from the motor. NEMA-rated enclosures ensure maximum protection in the harshest environments, and when paired with Siemens SINAMICS PERFECT HARMONY GH180 variable frequency drives (VFDs), they also help ensure ptimal
reliability for your operations.
For drives < 2000 Hp
Compares to low voltage drive with step-up transformer
Reduced overall footprint for facilities with limited space
-3 wires in, 3 wires out configuration for low voltage input
-Closed-loop internal cooling
-Easily lifted from the top
-Access to main power connections without opening all main doors
For drives > 2000 Hp
Higher Hp ratings
Accommodates auxiliary equipment: switchgear,input contactor, synchronous gear, breakers, options cabinet
External heat exchangersor air conditioners
-Full-voltage bypass switchgear
-Air-to-water or air-to-air heat exchanger
-Prevents condensation with full insulation
-Provides an additional envelope of safety for the operator, similar to metal-clad switchgear
-Protects the drive from impact with double steel-walled construction
For all Hp ratings
Can accommodate multiple drives
Plant-style features: switchgear, low voltage mccs, lighting, UPS’s, plant office space
Fire protection, HVAC and AC panelboard
-Complete range of auxiliary equipment (low voltage, etc.)
-Complete range of cooling methods
-Can provide additional logistics and administrative office spaces
-Personal environment meets OSHAoperating and safety requirements
Siemens medium voltage drives provide the highest level of reliability, precision, longevity and quality. Employed in applications ranging from power generation to oil and gas, water, marine, paper and more, Siemens medium voltage drives are versatile performers that significantly contribute to increased productivity and reduced operating costs. The right drive system can even lower operating costs by allowing you to build a more energy-efficient process.
SINAMICS SM120 CM drive is a premium and customizable drive system featuring interchangeable modules to offer the most efficient drive design tailored to your complex application’s requirements.
A universal medium voltage Neutral Point Clamp (NPC) drive solution for single motor applications with variable and constant torque characteristics.
The SINAMICS GL 150 is a load commutated inverter (LCI) for large synchronous motors and generators. Compared to voltage source drives, the LCI drive is a cost competitive solution for large power ratings.
A premium medium voltage drive for low and high-speed applications with single or multi-motor systems that require high dynamic performance and regenerative capabilities.
The cycloconverter for slow-speed synchronous and induction motors requiring high torque.
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