Hi-Power

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Hi-Power Electrical Industries

Hi-Power Electrical Industries

Company Profile

Hi-Power Electrical Industries established in the year 2002 an ISO 9001:2015 company has made a triumphant entry in the manufacture of a wide range of electrical products. They include Single Phase Distribution Transformer and Three Phase Distribution Transformer; Micro-Controller based Feeder Logic Controllers, and a cluster of other products. The organization has made unimaginable progress in its area of operation. The company has set high professional standards by virtue of its hard work and perseverance.We have gained good reputation in the market place for producing good quality products and would like to achieve the same feat in the field of Power Transformers Manufacturing and Repair.We have also been approved with BUREAU OF ENERGY EFFICIENCY for Supplying 3star,4star and 5star transformers. We have suplaed over 63000 Distribution Transformers of various cepacities all over india. We are having units at Patancheru, Medak (Di. and Jeedimetla, Hyderabad.

Products

We deal with a diverse range of electrical products. They include:

Single Phase Oil Filled Distribution Transformer (5 KVA – 37.5 KVA)
Three Phase Oil Filled Distribution Transformer (15 KVA – 1000 KVA)
Micro Controller based Feeder Logic Controller for Sub Stations
Micro Controller based Timer Controller.

Clients

Our appealing range of Products has helped us to enlist the support of a huge number of clients. Within a short span of time we have acquired blue-chip customers such as:

M/s. Telangana Northern Power Distribution Company Limited
M/s. Telangana Southern Power Distribution Company Limited
M/s. Andhra Pradesh Eastern Power Distribution Company Limited
M/s. Andhra Pradesh Southern Power Distribution Company Limited
M/s. Hubli Electricity Supply Company Limited.
M/s. Chamundeshwari Electricity Supply Company Limited.
M/s. Maharashtara State Electricity Distribution Co.Ltd.
M/s. Larsen & Toubro Limited (ECC Division)
M/s. Nagarjuna Construction Company Limited
M/s. Maytas Infrastructures Pvt. Limited.
M/s. Sealwel Corporation Pvt. Ltd.
M/s. Pavani Controls &Panel Limited.
M/s. ICSA India Ltd.
M/s. PEC Electrical Private Ltd.

Quality Policy

Our team of professionals are always guided by a quality oriented approach. We have adapted Total quality Management with raw material and labor trace ability at all levels of production. We have always stuck to transparency and clarity in our methods of production. We have adapted Continuous Improvement Process refining our methods and practices to improve consistency, efficiency, and over all quality. We are equipped with state of the art testing facility to accurately quantity quality of our products. Our designs are certified by Central Power Research Institute, an Internationally Accredited Lab.

Infrastructure

Our design and engineering team is the key pillar of our organization, we have internally developed state of the art Software that performs millions of permutations and combinations resulting in an optimum design with lowest total cost of ownership and in strict compliance to customer specifications.

Manufacturing

With Just-in-Time manufacturing facility, we are equipped with three "U" shaped assembly lines enabling us to manufacture three different ranges of transformer simultaneously. With continuous innovation and pioneering, as strategy all through, we today has unmatched world-class design, which was developed in-house to meet customized design demand. We have full-fledged facilities for testing and also dedicated Engineers working tirelessly on product development.

Financial Capability

We are reputed firm with annual revenues of 104.50 Crores for 2016-2017. Our group is Sufficiently funded to execute large orders.In a short span of twelve months we have supplied over 12,500 transformers during 2016-2017 last financial year.

MANUFACTURE & QUALITY CONTROL METHOD

RAW MATERIAL : All the raw materials are tested for physical dimensions and quality of insulation and cutting for lamination.
CORE BUILDING : After checking the quality of the lamination core building is made as per the drawing. All the dimensions are checked as per the drawing before sending the core for assembling.
LV & HV WINDING : After checking the physical dimensions and the quality of the insulation paper windings are made as per the drawing. Both HV and LV windings are checked for physical dimensions like ID, OD Length and number of Layers.
CORE & WINDING : Core and winding assembly is made as per the drawing. Thickness of the cylinders oil ducts between HV & LV and in between core and windings series connections, tapping connection and neutral connection on L.T. side are checked.
HEATING : Core coil assembly is loaded in Oven for drying till required megger values are reached. Meggar values are checked and sent for tanking.
TANKING : The assembly is pressed to the required dimensions tanking sufficient care to see that insulation is not damaged and the assembly is tanked.
OIL FILLING : Oil is pre-heated till the required breakdown value is reached. Hot oil is filled and the job is completed.
TESTING : Each and every transformer is tested for all the routine test as per latest I.S. before offering for inspectio

Testing Facility

S.No.	Description	Laboratory	Short Circuit Test	Impulse Voltage Withstand Test
1	63KVA, 3Æ Al-Wound Distribution Transformer Voltage Rating: 11KV/433V	CPRI, Bangalore	R	R
2	100KVA, 3Æ Al-Wound Distribution Transformer Voltage Rating: 11KV/433V	CPRI, Bangalore	R	R
3	16KVA, 3Æ Cu-Wound Distribution Transformer Voltage Rating: 11KV/433V	CPRI, Bangalore	R	R
4	25KVA, 3Æ Cu-Wound Distribution Transformer Voltage Rating: 11KV/433V	CPRI, Bangalore	R	R
5	16KVA, 3Æ Cu-Wound CRGO Wound Core Distribution Transformer Voltage Rating: 11KV/433V	CPRI, Bangalore	R	R
6	25KVA, 3Æ Cu-Wound CRGO Wound Core Distribution Transformer Voltage Rating: 11KV/433V	CPRI, Bangalore	R	R
7	15KVA, 1Æ Al-Wound Distribution Transformer Voltage Rating: 11/Ö3 KV/250V	CPRI, Bangalore	R	R
8	10KVA, 1Æ Al-Wound Distribution Transformer Voltage Rating: 11/Ö3 KV/250V	CPRI, Bangalore	R	R
9	10KVA, 1Æ Al-Wound Distribution Transformer Voltage Rating: 11KV/250V	CPRI, Bangalore	R	R
10	25KVA, 3Æ Al-Wound Distribution Transformer Voltage Rating: 11KV/433V	CPRI, Bangalore	R	R

Standard Tests & Measurement

Each transformer manufactured is subjected to the following routine tests:

Voltage Ratio – Turns ratio is tested in Core-Coil Assembly stage and any defective coil is replaced in assembly stage. (Testing Instrument – Eltel TRM-200) Polarity Test – Vector group is tested at design stage and later tested for conformity in ratio of 1:10.
Resistance Measurement – Both LV and HV resistance is measured for each phase. Any abnormalities due to improper wire size or improper tightening or improper crimping are detected in this test. (Testing Instrument – Motwane – LR2065)
No Load Losses & Excitation Current Measurement – Apart from measuring the quality of core and conformity to guaranteed losses, we are also measuring the quality of winding insulation, which includes both inter-turn and inter-layer insulation. (Testing Instrument – Yokogawa WT230)
Load Losses & Impedance Voltage Measurement – Both load losses and impedance voltage are measured to verify conformity to guaranteed values. Any deviation in load losses indicates improper tightening of LV & HV rod or poor crimping at joints. Similarly any deviation in impedance voltage beyond tolerance indicates change in geometry beyond design tolerances.
Induced Voltage Test – Applied to verify any inter-turn insulation failure within HV & LV coils. (Testing Instrument – Arctic Electricals 5-15)
High Voltage Test – 2.5 times the primary voltage is applied on HV to verify integrity of the insulation, especially HV coil to tank, HV coil to channel, HV coil to LV coil, & HV lead wire to tank. Similarly, 3kv is applied on secondary to verify integrity of insulation between LV coil to core and LV to tank.
Temperature Rise Test – Type-test done at design validation stage. We verify if the temperature rise in oil and windings is consistent with customer specifications.
Insulation Oil Test – Performed to verify the break-down voltage and voltage withstand capability of filtered oil. We insert oil after achieving 55KV withstand capability for 60 secs.