Brief introduction of Ahar company

Ahar company started its activity in the field of electrical engineering services in electronics and control trends in 2000. These activities began with the redesign and production of power plant electronic boards and gradually extended to the design of advanced control systems needed in energy industries. In 2011, the turbine control system was presented which called Ramyar, and after that, the generator excitation system (Sanyar) and another advanced power plant, refinery, and oil and gas control systems were designed and presented

Today, a large number of power plants, refineries, oil transmission lines, etc. use Ahar control systems

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Brief introduction of Ahar company

Ahar company started its activity in the field of electrical engineering services in electronics and control trends in 2000. These activities began with the redesign and production of power plant electronic boards and gradually extended to the design of advanced control systems needed in energy industries. In 2011, the turbine control system was presented which called Ramyar, and after that, the generator excitation system (Sanyar) and another advanced power plant, refinery, and oil and gas control systems were designed and presented

Today, a large number of power plants, refineries, oil transmission lines, etc. use Ahar control systems

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Customer Orientation

Believe in the principle of customer orientation and that the customer is our blessing through accurate identification of customer needs and providing high-quality services and extensive and long-term after-sales service for our products

Respect for Employees

Believe in respect for employees as the main capital of the organization and trying to preserve the dignity of this capital through the use of strategic principles of human resource development and increasing the expertise of experts through continuous training

Research and Development

Carrying out research and development activities with the aim of innovation and providing new products related to the needs of the country’s power industry, flawless services, and reducing operating costs

10
Years of Experience
+ 1000
MW Upgrading
+ 50
Specialist Personnel
+ 100
Electronic Card Design

Company Time Line

Production of the first electronic power plant card

Expanding the production of various models of power plant electronic cards

Design and installation of monitoring systems in various industries

Designing and producing the first series of generator excitation electronic cards

Commencement of Specialized Design for Gas Turbine Control Cards

Joining Khorasan Science & Technology Park

Commencement of  Designing Gas Turbine Control Systems (Ramyar)

Updating and installing the first gas turbine control system with a capacity of 25 MW of GE company, model F5 in Iran

Designing and producing of digital Governor control system for steam turbines

Achievement of Knowledge-Based License

Designing & producing of DCS Input & Output Modules (Ramona)

Designing and producing the first gas turbine generator excitation control system with a capacity of 25 MW in Iran

Updating more than 1000 MW of the turbine control system of Iran’s electricity network

Designing and producing the first two-shaft gas turbopump control system in the oil and gas industry

Updating and installing one of the largest gas power plants turbine control system with 130 MW capacity, Mitsubishi Brand in Iran

Updating and installing the generator excitation control system of the largest power plant in Iran with a capacity of 320 MW

Designing and producing of the first synchronous motor starting drive system (SFC) with a capacity of 3 MW in Iran (Rastar)

Upgrading more than 5000 MW of turbine control and generator excitation system of Iran’s electricity network

Designing and producing the first speed protection system for rotating machines with SIL3 standard in Iran
(Rayan)

Updating more than 7000 MW of the turbine control system and generator excitation system of the Iran electricity network (equivalent to more than 12% of the electricity produced in Iran)

Services and Activities

Currently, the most important fields of activity of Ahar company can be summarized in the following fields

Control and protection of turbine, compressor and turbopump

Ramyar’s product is a specialized controller for implementation on different types of turbines, including turbogenerators, turbopumps, and turbocompressors. This product covers all the processes of a gas or steam turbine, such as control, protection, supervision of all processes, monitoring, and application of operator commands

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Generator excitation and protection

Sanyar’s product is a generator excitation and protection system based on the most up-to-date technology in the world, which is designed to control and protect synchronous generators. This system can include a wide range of generators in terms of size and type by using modular design, the possibility of redundant configuration and also choosing a wide range of thyristor/IGBT modules.

Accordingly, Sanyar is suitable for controlling generators with an excitation current of up to 4000 amps and for all types of gas, steam, water, combined, and atomic cycle units

Generator excitation and protection

Synchronous motors drive

Synchronous motors play a major role in today’s industry by providing higher productivity and also the possibility of designing and manufacturing in very large sizes. The biggest challenge of using synchronous motors is the need for a driver and its specific design for each motor. The driver of synchronous motors has very high technology and knowledge. The complexity and depth of this knowledge will double when we are dealing with large-size engines.
Recognizing this problem and in order to meet the needs of various industries in the country, Ahar company put the project of designing and manufacturing this type of driver under the brand name Rastar on its agenda

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Generator Excitation System
Synchronous motors drive

Over-speed protection system

The OPS series is designed to protect against overspeeding in high-sensitivity rotating machines
Its applications include speed protection in steam, gas, water turbines, and turbo compressors. This system is able to stop the unit through trip valves in case of Overspeed or over-acceleration
This system constantly monitors the speed of the rotor by monitoring the speed of pick-ups and stops the turbine when necessary with high security

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DCS system

Ramona is a native Iranian DCS that is fully compatible with the Yokogawa DCS system and is considered a suitable alternative for use in power plants, refineries, and all high-tech industries. In these products, the possibility of communication with the upstream departments, FCS, and HIS of Yokogawa is included, and all the settings that can be provided can also be defined in Ramona modules.

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EMC laboratory and environmental tests

The pre-Compliance test is a test that is used before the main tests and only for the purpose of initial measurement of the manufactured products. It is cheap to use these tests and product defects are identified during the design process

including tests

IEC61000-4-3 (RF Interference)

IEC61000-4-4 (Burst)

IEC61000-4-8 (50Hz Magnetic Field)

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Over-speed protection system
DCS system
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Some of our customers

Some Projects

The latest completed projects of the Ahar company

News and Events

News and Events

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