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1 Products availableOur offered Product range includes DISTRBUTION and POWER TRANSFORMERS, Industrial Transformers, Ultra Isolation Transformer, Isolation Transformers and H.T. TRANSFORMER WITH BUILT-IN AUTOMATIC VOLTAGE STABILIZER.
Subjected to rigorous and strict quality controls at every stage of manufacturing, Designed to meet latest national international standards like BIS, IS, IEC, ANSI, BS, DIN, etc., Wide range of Transformers duly tested at Central Power Research Institute, Bangalore , Bhopal Quality assurance programme available
Temperature Rise
It is designed for 30-35 degree C above ambient. Suitable for any kind of ambient temperature conditions.
Core
Core is constructed from Low Loss of CRGO M-4 Grade confirming to latest standards & is fitted & clamped with special built in-house frames to reduce the magnetic noise & to make the structure rigid & robust.
Windings
Use paper covered electrolytic grade copper strip for winding. Cooling ducts are provided to keep the hot spot temperature as low as possible.
Tanks & Paint
Tanks are made of M.S. Sheets with adequate bracing & stiffeners are given a coat of Epoxy Primer & Epoxy paint for better life. Both light grey & Siemens grey (RAL 7032) are available in colour.
Oil
Oil of IS: 335 standard is being used & is filtered before topping.
| Input Voltage | 360-460 V | 360-460 V | 320-480 V | 300-480 V | 280-500 V |
| Efficiency (Approx.) | 99.5% | 99.3% | 99% | 98.8% | 98.7% |
| Output Voltage | 400 V ± 1% 3Phase, 50 Hz* | . | . | ||
| Cooling | Naturally Oil Cooled | . | . | ||
| Type | Indoor / Outdoor | Response Time: | Instantaneous | . | |
| Temperature Rise ( Max.) | 30o C above ambient | Accuracy: | ± 1% | . | . |
| Mounting | On Uni-directional Wheels | . | . | . | . |
| Wave form distortion | Nil | . | . | . | . |
| Duty Cycle | 100% Continuous | . | . | . | . |
We have substantial warehouse that is well-equipped with the cutting-edge technologies and upgraded machines; thus, we are capable of entertaining the voluminous requirements with super ease. For the utmost customer satisfaction, we are flexible in delivering the product range at the place agreed by the customers and that too in the set time.
Even after the installation of standard off circuit distribution transformer, the voltage fluctuation on the LT side persists due to limited range of voltage correction of the transformer. To control the voltage fluctuations, it is ideal to install Servo Controlled Automatic Voltage Controller either on LT side or HT side.SERVOMAX make Transformers with built-in rolling contact type AVR suitable for indoor/outdoor installation, copper wound HT Two-in-one system is a revolutionary landmark in the industry when it comes to voltage regulation and stabilization. Even after the installation of standard distribution transformer the problem of low/high voltage on the LT side persists, resulting in improper operation of the electrical equipments, premature failure & production loss of a plant. The standard off circuit tapping of transformers can correct limited voltage variation and cannot regulate the voltage while in On Load conditions. We have developed state of the art technology two-in-one system with Transformers having built-in HT Automatic voltage regulator that operates on load, sleeplessly & gives stabilized voltage on the LT Side. The equipment is basically a combination of HT AVR with a standard distribution transformer.
The Fluctuating voltage from grid is initially controlled by the HT AVR and then fed to the transformer resulting in the constant L.T. Output within +/- 1% accuracy and the biggest advantage being its robust design ; Lesser losses & more efficiency make the distribution transformer to utilize up to 100% capacity.
H.T. Transformer with built-in Automatic Voltage Stabilizer: 3000 kVA
The Unit Consists Of:
SERVOMAX make 3- Amorphous Core Isolation Transformers 50 Hz or 1 KHz with primary Voltage 360-480V & Secondary voltage 380-415 Volts, 120/240 Volts or as required, Oil immersed, naturally air cooled, double wound with Aluminium / Copper, Step up / Step down core type continuous duty transformers having no load voltage ratio from 200 VA to 160 KVA with H Class Insulation and designed to withstand Short Circuit, & Impulse Test in accordance with IS 2026.
| Sl.No | Accessories | Availability |
| 1 | Terminal Connector | Yes |
| 2 | Primary bushings | Yes |
| 3 | Secondary bushings | Yes |
| 4 | Mounting lugs/brackets | Yes |
| 5 | Lifting lugs | Yes |
| 6 | Rating & Diagram plate | Yes |
| 7 | Grounding/Earthing terminals | Yes |
Multiple Shielding Techniques employed to reduce the inter winding capacitance to below 0.005 picofarad and increases DC Isolation to over 1000 Megaohms.
Technically any transformer that has no direct current path between its primary & secondary windings provides isolation from any kind of leakage in Current, Spikes/Surges produced in the system. Provision of electrostatic shield in between primary & secondary winding depends upon its construction, specification & performance characteristics.
Isolation / Ultra Isolation Transformer are being used to protect Electronic & Sophisticated equipments, CNC Machines from the excessive line voltage transients, spikes / surges produced in the system. Electrostatic shielding helps in grounding these spikes & not allowing to pass on to the secondary side of the transformer.
Furnace Transformer are built in delta / star connection with neutral as floating & electrostatic shielding is used to protect the furnace from any kind of Earth Fault Tripping.
Dry type transformers are suitable for indoor installations in explosive atmospheric areas and populated locations such as malls, multiplex etc. These dry type transformers have F or H insulation class with or without enclosure as per the site requirement.
Dry transformers are very compact in sizes and hence suitable for basement installations in high rise buildings etc. Dry transformers are available with low losses giving savings over long service periods. Periodical vacuum cleaning of winding surface is the only maintenance. The capacity range of these iron core transformer is up to 2000 KVA with primary Voltage up to 11 KV class & secondary Voltage between 433 to 6600 Volts.
50 kVA to 5000 kVA, 11 kV & 33 kV Class suitable for Indoor applications with off circuit tap links, off circuit tap switch, on load tap changer (Indigenous & Imported).
Chalapathi Rao (Servomax India Ltd.)
Ecil Post, Hyderabad, Telangana, India
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