DSP based digital controller for 6 pulse & 12 pulse TCR, Water cooled rectifiers, Pulse Rectifiers & Battery chargers. LCD display will eliminate the need of separate meters & LED indications

Compact design, ONAN cooling with conservator & breather
Hermetically Sealed Construction with corrugated expandable fins
EHV grade mineral oil used for ONAN cooling
Unique insulation system for silicon oil filled transformers
High impedance transformer with in-built current limiting choke
Electrostatic Shield between Primary and Secondary windings
Proprietary high voltage rectifier stack design consists of module cards with silicon diodes with RC protection across each diode to protect the bridge from the stored charge from the ESP
Complete internal assembly is lid mounted for ease of maintenance and repairs

The converter grade thyristor range extends upto 4350Amps with PIV upto 2800V incorporating standard packages of 1/4" unf stud in to hat range to 3"in capsule type. The inverter range is divided into two distinct types. One meant for standard low frequency inverter upto 4350 amps and 2800 volts and the other for high frequency applications such as induction heating and high frequency welding. The high frequency range has thyristors upto 1200 amps with voltages upto 2000 volts., 'turn off' times as low as 10 microsecs.

Description / Specification of E.M.U. Transformer

We are involved in offering a wide range of E.M.U. Transformer to our most valued clients. Our range of these are widely appreciated by our clients which are situated all round the nation. We offer our range of it at most affordable prices.

We introduce ourselves as an eminent trader and supplier of an extensive array of  E.M.U. Transformer. Prior to dispatch, our quality controllers run numerous tests on the entire range on various parameters of quality and durability. The offered equipment is manufactured using superior quality components with the aid of sophisticated techniques at the vendors' end. Moreover, our precious clients can purchase it in different technical specifications at reasonable price from us within promised time frame.
Features:

Sturdy design
Highly durable
Application specific design 

IGBT based Auxiliary converter for WAG-9 & WAP-5 three phase locomotives

Fully static type of converter, does not contain any rotary items for power conversion

3 Power outputs each 130 kVA for auxiliary motor loads & 1 battery charges output

Multiple frequency operation i.e. 37 hZ & 50 hZ

Integrated with VCU thru MVB

HIRECT make Cathodic Protection Transformer Rectifier unit (TRUs) comprise of Automatic, Manual & CVCC controlled. CP-TRU is used for cathodic protection of buried pipelines across the country,storage tanks at terminals /refineries and other buried structures.

Applications

TRUs are used to prevent submerged (Soil or water) metallic structures from corrosion. All submerged Pipelines (Oil, water etc.), concrete structure of bridges/ buildings / sea ports etc can be protected from corrosion by doing CP.

TRUs impress DC Currents in to the Carbon-steel/steel structure to be protected in opposite direction to the galvanic corrosion currents & protects the structure from corrosion.

To obtain the optimum level of protection under varying conditions, it is necessary to vary the impressed current continuously so as to maintain a constant level of protective potential at the structure. This continuous monitoring and control can be achieved by providing an automatic control for the cathodic protection system.

HIRECT offers several types of TRU which are designed, manufactured and tested under strict quality assurance system to achieve highest quality standards.

Transformer

All the Transformers used in TRUs are designed to give high efficiency with low loss. The coils are wound with high conductivity, annealed, insulated electrolytic copper and core material is high permeability, low loss CRGO/CRNGO. The insulation material used is of high standard Class F. Designed and tested as per IEC 76/IS 2026 standards.

Rectifier

Rectifiers are based on internal quality standards and our own make Diodes / Silicon Controlled Rectifiers. Rectifier circuits have different topology depending upon the load requirements.

Designed and tested as per IEC146/IS 3136 standards.

Modes of Operation
Auto Reference Mode

The operation of the TRUs in this mode will be fully Automatic and will be controlled by reference electrode feedback.The unit will automatically maintain reference voltage or P.S.P. within ± 15 mv of the set value under all conditions.

Manual Mode

The DC output voltage of TRU will be controlled in 24 symmetrical steps by means of a separate Autotransformer with Coarse & Fine tapping.

CVCC Mode

The unit will be operated in Constant Voltage or Constant Current mode.

In constant voltage mode the DC output voltage will be settable from 0 to rated value in stepless manner by means of voltage adjustable pot.

In constant current mode the DC output current will be settable from 0 to rated value in stepless manner by means of current adjustable pot.

The power Diodes available from Hirect Include Standard Rectifier diodes starting from 6Amps to 6000Amp It(av), with voltages upto 4800V(piv). These devices are offered in a variety of packages starting from M6 stud in top hat range to 3" in capsule types. In addition to rectifier diodes, a number of fast recovery diodes and other special devices with avalanche characteristics are available.

The converter grade thyristor range extends upto 4350Amps with PIV upto 2800V incorporating standard packages of 1/4" unf stud in to hat range to 3"in capsule type. The inverter range is divided into two distinct types. One meant for standard low frequency inverter upto 4350 amps and 2800 volts and the other for high frequency applications such as induction heating and high frequency welding. The high frequency range has thyristors upto 1200 amps with voltages upto 2000 volts., 'turn off' times as low as 10 microsecs.

The modules package concept has now gained acceptance as it offers compact and easy to handle designs. The semiconductor junctions are electrically isolated from the base allowing common heatsinks and compact designs. The insulating materials used between chip and base is carefully chosen so that the impedance is minimised. The Hirect range extends upto 350 amps and 2200 volts and is available in Diode-Diode, Diode-Thyristor and Thyristor-Thyristor configurations.

The required circuit such as single phase bridges, 3 phase bridges and AC Regulators can be assembled with ease and flexibility using two or more such modules. The modules can be used in almost all applications where stud base or capsules devices were being used in the past.

Description / Specification of Rectifier For Locomotives

We are involved in offering a wide range of Rectifier For Locomotives to our most valued clients. Our range of these are widely appreciated by our clients which are situated all round the nation. We offer our range of it at most affordable prices.

We introduce ourselves as an eminent trader and supplier of an extensive array of  Rectifier For Locomotives. Prior to dispatch, our quality controllers run numerous tests on the entire range on various parameters of quality and durability. The offered equipment is manufactured using superior quality components with the aid of sophisticated techniques at the vendors' end. Moreover, our precious clients can purchase it in different technical specifications at reasonable price from us within promised time frame.
Features:

Sturdy design
Highly durable
Application specific design 

HIRECT is leading supplier of the Water Cooled rectifier system. These rectifier systems supply high current upto 50KA for application like electro smelting. The systems are designed with OFWF cooling for transformer and water cooling for rectifiers.

HIRECT also supplies converter transformer of ONAN and AN types as well as high current AC-DC chokes for smoothing and current limiting application.

HIRECT has developed specialized power electronic equipments for a range of applications.

Thyristor control constant voltage and constant current power supply are used by R & D organizations like BARC, CAT, IPR etc.

Constant Current Regulators are being supplied for Airport runway lighting. These are used for guidance during aircraft landing and take off at civil airports as well as air force stations.

HIRECT systems are used for Naval frigates and submarines on high sea or patrol vessels on coast guard duty.

HIRECT has developed chargers and regenerative dischargers for the battery industry.

Custom built power supplies with IGBT designs are offered for specialized applications involving process controls and offering unique features like pulse control, reverse polarity, constant power for various industrial application.

Description / Specification of Rectifier For Electric Locomotive

We are involved in offering a wide range of Rectifier For Electric Locomotive to our most valued clients. Our range of these are widely appreciated by our clients which are situated all round the nation. We offer our range of it at most affordable prices.

We introduce ourselves as an eminent trader and supplier of an extensive array of  Rectifier For Electric Locomotive. Prior to dispatch, our quality controllers run numerous tests on the entire range on various parameters of quality and durability. The offered equipment is manufactured using superior quality components with the aid of sophisticated techniques at the vendors' end. Moreover, our precious clients can purchase it in different technical specifications at reasonable price from us within promised time frame.
Features:

Sturdy design
Highly durable
Application specific design 

Description / Specification of Rectifier For Diesel Locomotive

We are involved in offering a wide range of Rectifier For Diesel Locomotive to our most valued clients. Our range of these are widely appreciated by our clients which are situated all round the nation. We offer our range of it at most affordable prices.

We introduce ourselves as an eminent trader and supplier of an extensive array of  Rectifier For Diesel Locomotive. Prior to dispatch, our quality controllers run numerous tests on the entire range on various parameters of quality and durability. The offered equipment is manufactured using superior quality components with the aid of sophisticated techniques at the vendors' end. Moreover, our precious clients can purchase it in different technical specifications at reasonable price from us within promised time frame.
Features:

Sturdy design
Highly durable
Application specific design 

Locomotive transformers from Hirect cater to the production units of Indian Railways. Hirect is also involved in the Rehabilitation and upgradation of the transformers for locomotives and electrical multiple units being used by Indian Railways. With its technical expertise Hirect has successfully designed and manufactured transformers as import substitute for old locomotives.

In the early Eighties HIRECT entered the field of Locomotive Transformers. Starting with the repairs of various transformers for WAM4, WAG2. HIRECT Supplied new Transformers 3900 kVA, 5400kVA for WAG5 & WAP7 goods and passenger locomotives. High power transformers 6500KVA and 7500kVA are offered by Hirect for the Three phase locomotives.

Hirect supplies 1000kVA conventional and 1550kVA modular transformers for the EMU's.

With the Indian Railways introducing three phase drive systems in electric locomotives and electric multiple units, Hirect also joined hands with CLW to become a partner for the manufacture of static converter for locomotives with three phase drive systems. with the absorption of technology, Hirect has become an indigenoussource for auxiliary converter and other panels required in this locomotive.

Hirect is the major supplier of 25kVA inverters for AC coaches. The under slung Inverters are built on Technical known-how from our collaborators. It offers unique features like Natural cooling. AC Coach Inverter 25kVA.

To keep pace with new technology. Hirect has entered into foreign technical tie-up for static converter for replacement of rotary arno converters of Electric locomotives manufactured and operated by the Indian Railways, A large number of 180kVA converters have been manufactured and installed. Hirect also offers 3 x 100kVA converters for the three phase electric locomotives.

The Division has done Pioneering work in the development and manufacture of power semiconductor devices and offer a comprehensive range in various packages. to complement this, a full range of heatsink assemblies using IEC Circuit configuration as well as custom design is available. Hirect Semiconductor device have gained a wide reputation for quality, in industrial, military and transportation application.

To keep pace with the development of power electronics, Hirect has extended the range of stud based and capsule devices to include a family of isolated base power modules. These modules conform to international outline with a variety of diode and thyristor combination arrangement offering enhanced thermal and mechanical properties.

To serve the sophisticated market, Hirect has invested extensively in the Quality testing systems to ensure international quality & reliability. The test facility is also used in rating and interpretation of device performance.

A good and efficient transport system is indispensable for economic growth and national development. Both Semiconductor and Equipment Divisions work in the form of Interdisciplinary co-operation and offer custom-built solutions. They have a long standing experience in surface and underground transport systems. New transport systems require updating of technology and Hirect's experience has grown steadily with the absorption of new technology to keep pace with demand and involvement in important transport projects of the Railways, Mass Transit Projects and Metropolitan Transport Systems.

Traction duty applications require special design considerations, viz,

Intermittent duty cycles with periodic overloads
Shock and vibration withstand capabilities
Size and cooling restrictions