mini engineering works catalogue

An ISO 9001:2008 Certified Company

Mini Engineering WorksF-285, UPSIDC, Khichra Industrial Area,

Meerut-Gulawati Road,Ghaziabad – 201001, UP, India

THE TOTAL POWER SOLUTIONS

We are glad to introduce ourselves as one of the leading manufacturerof measuring and Protection in High Voltage and Extra High VoltageSystems (Current Transformers and Potential Transformer).

OVERVIEW

MINI ENGINEERING WORKS, founded by Mr. SHOKAUT ALI and Er.AKRAM SAIFI, supported by a dedicated team of Engineers,Technicians and Business people, committed to a Technology, parexcellency, has been in the field of Power Secto r f o r more than 18Years and now es tab l i shed a Se tup o f Manufacturing state of HighVoltage Power Products, from this Year i.e. November’2013, and as wehave already told above that both Mr. Sharafat Ali, TechnicalProfessional, have more than 18 years of experience and have so farmaintained vast clients list with EPC Contractors/ElectricalContractors/PSU Units/Boards/Nigams, through perseverance andR&D. Every time, we will developed a strong clientele by supplying high qualityproduct to varying specifications.

Today, M/s MINI ENGINEERING WORKS is very new to the Corporatesbut we assures our bes t Qual i ty Products in a s t ipula ted t ime frame.

M/s Lucky India Power Solutions, company is it’s Parent Company and is wellknown to all the Corporates the it Supplies Complete Substation Materials upto400KV Class including Complete Substation / Plant Automation System bySCADA, PLC.

FACTORY SET UP

MINI ENGINEERING WORKS has factory set up with well-equippedlaboratories, testing department with all facilities for production check forraw material, semi finished product and final product.

Carpet area of the factory is 7500 sq.feet and office area 500 sq. feet.

MOTTO

Quality, customer satisfaction and regular improvement for better to bestQuality Products.

COMMITTED TO

• Design, develop, manufacture and service quality products as percustomer requirement.

• Carry out production as per the standard procedures.• Improvement in product and services

THE TOTAL POWER SOLUTIONS

As mentioned earlier, MINI ENGINEERING WORKS is one among those

organizations in India that provides total power solution forms under a single roof:

The products and the corresponding range follows:

Sr.No

DESCRIPTION OF ITEMS MANUFACURED RANGE

1RESIN CAST C.T RING TYPE AND 3 PHASE

CT BANK TYPE440V/660V

2 RESIN CAST C.T Up to 33kV

3 RESIN CAST P.T. Up to 33kV

4 COMBINE CTPT METERING SET (33kV, 22kV,11kV)

Up to 33 kV

5 OUTDOOR, SINGLE PHASE CURRENTTRANSFORMERS

Up to 33 Kv

6 OUTDOOR, SINGLE PHASE POTENTIALTRANSFORMERS

Up to 33 kV

7 PILFER CTPT METERING CUBICLE Upto 33KV

IN PRIVATE SECTOR

LIST OF PLANT AND MACHINERY

Sr. No.Name Of

Machine/EquipmentBrief Specification Qty

1 Coil Drying OvenDrying Oven Temp.150 deg atatmospheric pressure

1 No

2 Drilling MachineVertical drilling Machine with3/4”Capacity

2 Nos

3 Storage Bins & RacksIndustrial storage plastic bins &M.S.Racks to stores material 3 Nos

4 H.V.Coil winding machine(Motorized)

Axial winding machine with maximum250 mm & axial Width 300mm SuitableUp to 42 swg

2 Nos

5L .V. Coil windingmachine (Motorized)

Axial winding machine with maximum250 mm & axial Width 300mm SuitableUpto 22 swg Copper wire

2 Nos

6H.V.Coil winding machine(Hand winding)

Axial winding machine with maximum100mm & axial Width 120mm SuitableUpto 42 swg Copper wire

2 Nos

7Bench voice 12”jaw opening bench voice 2 Nos

8 Hand drill machine 10 mm bore capacity 2 Nos

9 Welding transformer2 phase, capacity of 250 mm weldcurrent

2 Nos

10 Tooling KitVarious tools for general purpose allenkeys, spanner sets&Other instruments

4 Sets

11Brazing unit 150 Amp brazing Current 1 No

12Air compressor For painting and finishing of work

1 No

13 Bending MachineSuitable For Fabrication Bending OfSheet Metal Of Thickness 5 Mm

2 Nos

14 Shearing MachineSuitable For Fabrication Cutting OfSheet Metal Of Thickness 5 Mm

2 Nos

15 Grinding Machine For De Baring Of Metal Fabrication 3 Nos

16 Welding Machine Welding Of Ms Metal Purpose 4 Nos

17 Oven Heating Purpose 2 Nos

18Furnace Annealing of Core

1 No

LIST OF EQUIPMENTS FOR TESTING (INCLUDING INSPECTION OFRAW MATERIALS)

Sr. No.Name Of

Machine/EquipmentBrief Specification

Calibrationstatus

Qty

1Combined CT Test Systemfor measurement of ratioand phase angle error

Test system consisting Of test setCT TEST BRIDGE FOR 5A & 1A

calibrated 1 Set

2 Burden BoxBurden Box Of 40 VA Of 5 ABurden Box 40 VA Of 1 A calibrated 1 Set

0-5-10-15-20-25-30-40-50-60-75-80-100-125-150-200/5 AMP calibrated 1 Set

3 Standard CT0-5-10-15-20-25-30-40-50-60-75-80-100-125-150-200/1 AMP

1 Set

4Combined PT Test Systemfor measurement of ratioand phase angle error

Test system consisting Of test setPT Test Bridge

calibrated 1 Set

Burden Box Of 105 VA CapacityOf Output 110 Volts

calibrated1 Set

5 Burden Box For PTBurden Box Of 105 VA CapacityOf Output 63.5 Volts

calibrated1 Set

Standard 11kV PT 1ø /2øRatio: 11kV / 110V and 11Kv / rt3/110V /rt3

1 Set

Standard 22Kv PT 1ø /2øRatio: 22Kv / 110V and 22Kv / rt3/110V /rt3

calibrated1 Set6 Standard PT’s

Standard 33Kv PT 1ø /2øRatio: 33Kv / 110V and 33Kv / rt3/110V /rt3

calibrated1 Set

7High frequency generatorset with control panel

Coupled motors with panel havingfrequencymeter to get double voltage andfrequency for testing of PT’s

calibrated

1 Set

8High voltage AC TestSystem

Test system consisting of HV testtransformer 80kv, 4kVAcontinuous, control desk panelwith Ammeter, kV meter, andtripping circuit of 20mA

calibrated

1 Set

95 kV High voltage AC TestSystem.

Test system consisting of 0-5 kVHigh voltage Transformer,Manual voltage regulator

calibrated

1 Set

10 Set Of Voltmeter

Portable type precision typevoltmeterRANGE: COM –75-150-300 VOLTSRANGE; COM-150-300-600VOLTS

calibrated

4 Nos

11 Set Of Ammeter

Portable type precision typevoltmeterRANGE: COM-5A-10A-25A-50A-100ARANGE: COM-500ma- 1A –5A

calibrated

4 Nos

Sr. No.Name Of

Machine/EquipmentBrief Specification

CalibrationQty

12 Current Source220V/0-1500 amps with suitabletaps and capacity of 3.5 kVA

calibrated

1 Set

13Resistance MeasuringBridge

4 Terminal Milli ohmmeter from199.9 micro ohm to 19.9 kiloOhms

calibrated1 No

14 Polarity Meter General Purpose Analog Metercalibrated

3 Nos

15 Voltage Regulator0-415n Volts output28A. Auto Transformerinput 415 volts 3 PHASE

calibrated

2 Nos

16 Continuity MeterGeneral Purpose AnalogMultimeter

calibrated1 No

17Digital General purposeMultimeter

General purpose Multimeter withfacilities of AC DC voltagemeasurement, AmmetersResistance Measurement

calibrated

2 Nos

18 Megger Meter5 kV MEGGER to measureinsulation resistance value

calibrated2 Nos

19Clip – On MeterMAKE MECO

0– 1000 Amp, 750 Voltscalibrated

1 No

LIST OF EQUIPMENTS FOR TESTING (INCLUDING INSPECTION OFRAW MATERIALS)

status

QUALITY SYSTEMS AND PROCEDURES

1. BROUGHT OUT ITEMS (RAW MATERIALS)1.1. COPPER

- Maintaining Test Report for purchase from standard manufacturers- Testing class of insulation of enamel covering by performing temperature test- Electrical Breakdown Value (BDV) Test of enamel covering- Maintaining records of each spool used for individual job

1.2. PAPER- Maintaining Test Report for purchase from standard manufacturers- Testing class of insulation by carrying temperature test- Electrical Breakdown Value (BDV) Test

1.3. OIL- Maintaining Test Report for purchase from standard manufacturers- Electrical Breakdown Value (BDV) Test

1.4. CORE- Maintaining Test Report for purchase from standard manufacturers- Verifying the grade of material- Checking of Knee Point Voltage (SATURATION OF CORE)

2. IN HOUSE TEST (SEMI FINISHED & FINISHED GOODS)2.1. COIL

- Resistance Of Coil- Maintaining records of coil used for each job- Examining dimensional records of coil- Maintaining records of worker, responsible for the winding

2.2. SEMI FINISHED & FINISHED GOODS- Maintaining test report of SEMI FINISHED & FINISHED GOODS- Analyzing the reports of failures in intermediate stages and taking corrective measures accordingly- Analyzing the reports of failures in final stage and taking corrective measures accordingly- Examining the final reports before dispatch

3. EQUIPMENTS3.1. TEST EQUIPMENT & MACHINERIES

- Periodically calibrating and reconditioning of test equipment and machineries from standardgovernment and private labs, required for testing in the production process.

3.2. PERIODICAL MAINTENANCE OF PLANT AND MACHINERIES

4. TESTS4.1. TYPE TEST

- Timely performing the type test of the manufactured product in N.A.B.L accribated labs like E.R.D.A(Electronic Research and Development Association) and C.P.R.I (Central Power and ResearchInstitute).

PRODUCT PROFILE

CURRENT TRANSFORMERAPPLICATION –Direct measurement of current in high voltage & high current system is not possible because of

difficulty in electrical isolation of measuring instruments. Because of its high value,it is also not possible to use current flowing

directly to the system, so that current transformer are used to step down the high system current into low system measuring

current with their proportionate ratio. due to this it is possible to measure high system current by using standard measuring

instruments & relays, also its isolate meters,relays from high voltage systems.

VARIOUS TYPES OF CURRENT TRANSFORMERS

Ring Type Current Transformers : A Current Transformer which has an window

in the center to accommodate a primary conductor (busbar or cable) through it.

Bar -Primary Current Transformers : A Current Transformer in which the

primary winding consists of bar of suitable size and it is an integral part of the CT.

Wound Type Current Transformers : A Current Transformer having a primary

winding of more than one full turn wound on the core.

Interposing Current Transformers : These Current Transformers are used in

conjunction with main CTs to alter the ratio of main CT or to provide isolation to

meters or relays from main CTs secondary circuit. Primary current of these CTs

are generally lower than 1 0 amp. Due to which they are always wound primary

type.

Summation Current Transformers : When current flowing, in more than one

feeder is required to be metered summation current transformer are used. These

Current Transformers are provided with more than one primary winding and one

common secondary.

Bushing Type or Busduct Current Transformers : These Current

Transformers are Ring type construction & can be mounted on Busduct or

Bushing turrert of power transformer.

Core Balance Current Transformers : These are ring type Current

Transformers & suitable for the measurement of the sum of three phase currents

in a 3-ph cable. Under normal operating conditions this sum is zero. In the event

of an earth-fault the sum of the current is equal to the zero sequence current.

.

RESIN CAST CURRENT TRANSFORMER

Technical Specification As Per IS : 2705

RANGE – 11, 22 & 33 KVACCURACY CLASS – 0.2 & 0.5SPECIAL ACCURACY CLASS – 0.2S & 0.5SIS : 2705

General Particulars 11KV 22KV 33 KVHighest System Voltage( H.S.V.) 12 KV ( r.m.s.) 24 KV ( r.m.s.) 36 KV (r.m.s.)Power frequency dry/ wet withstandvoltage on primary winding for oneminute

28 KV ( r.m.s.) 50 KV ( r.m.s.) 70 KV ( r.m.s.)

Lightning Impulse withstand voltage(1.2 x 50 µ s )


PD measuring Voltage / PermissibleVoltage

7.6/50 15.2/50 23.0/50

Specific ParticularsRated Transformation Ratio As per customer requirement (in Amp.)Rated Primary Current Upto 2000 Amp.Rated Secondary Current 1 Amp. 5 Amp. 0.577 Amp.

Short Time Thermal Current (Ith)

As per customer requirement.In general CT is to be specified with STF of 100 for 1 Sec.or STC (lth) equal to the system fault level whichever islower. KA ( r.m.s. )

Short Time Dynamic Current 2.5 X Ith KA (Peak)Number of Cores Upto 3 coresOutput Burden Upto 60VA, 0.8 pf Lagging

Accuracy Class

For Metering :0.2S, 0.2, 0.5S, 0.5, 1.0 & 3.00.For Protection:5P, 10P, 15P & PS

IAF, ALF, Knee Point Voltage,Exciting Current & Resistance

As per customer requirement / Design Constraints

Type of construction As Per Panel Conditions(Customer Requirement)

OIL COOLED CURRENT TRANSFORMER

Technical Specification As Per IS : 2705General Particulars 11KV 22KV 33 KV 66 KVHighest SystemVoltage( H.S.V.)

12 KV ( r.m.s.) 24 KV ( r.m.s.) 36 KV (r.m.s.) 72 KV (r.m.s.)

Power frequency dry/wet withstand voltageon primary windingfor one minute

28 KV ( r.m.s.) 50 KV ( r.m.s.) 70 KV ( r.m.s.) 150 KV ( r.m.s.)

Lightning Impulsewithstand voltage (1.2x 50 µ s )


Specific ParticularsRated TransformationRatio

As per customer requirement (in Amp.)

Rated Primary Current Upto 2000 Amp.Rated SecondaryCurrent

1 Amp. 5 Amp. 0.577 Amp.

Short Time ThermalCurrent (Ith)

As per customer requirement.In general CT is to be specified with STF of 100 for 1 Sec. or STC (lth) equalto the system fault level whichever is lower. KA ( r.m.s. )

Short Time DynamicCurrent

2.5 X Ith KA (Peak)

Number of Cores Upto 5 coresOutput Burden Upto 60VA, 0.8 pf Lagging

Accuracy Class

For Metering :0.2S, 0.2, 0.5S, 0.5, 1.0 & 3.00.For Protection:5P, 10P, 15P & PS

IAF, ALF, Knee PointVoltage, ExcitingCurrent & Resistance

As per customer requirement / Design Constraints

Type of construction Dead / Bottom Tank or Live / Top Tank

POTENTIAL TRANSFORMER

APPLICATION – Direct measurement of voltage in high voltage & high current system is not possible because of

difficulty in electrical isolation of measuring instruments. Because of its high value, it is also not possible to use voltage

directly to the system, so that Potential transformer are used to step down the high system voltage into low system

measuring voltage with their proportionate ratio. due to this it is possible to measure high system voltage by using

standard measuring instruments & relays, also its isolate meters, relays from high voltage systems and also to sense

abnormalities in voltage & give signal to protective relay to isolate the defective system.

RESIN CAST POTENTIAL TRANSFORMER

RANGE – 11, 22 & 33 KVACCURACY CLASS – 0.2 & 0.5SPECIAL ACCURACY CLASS – 0.2S & 0.5SIS : 3156


General Particulars 11KV 22KV 33 KV

Highest System Voltage( H.S.V.) 12 KV ( r.m.s.) 24 KV ( r.m.s.) 36 KV (r.m.s.)

Power frequency dry/ wet withstandvoltage on primary winding for oneminute


Lightning Impulse withstand Voltage (1.2 x 50 µ s )



7.6/50 15.2/50 23.0/50

Specific ParticularsNumber of Phases 3 or 1 unearthed or earthedRated Transformation Voltage Ratio As per customer requirementNumber of Secondary Windings Upto 3Output Burden Upto 100VAAccuracy Class For Metering : 0.2, 0.5 & 1.0

For Protection: 3P, 6PVoltage Factor 1.2 Continuous & 1.5 for 30 Sec or 1.9 for 30 Sec or 1.9 for

8 hours

OIL COOLED POTENTIALTRANSFORMER


General Particulars 11KV 22KV 33 KV 66 KV

Highest SystemVoltage( H.S.V.)

12 KV ( r.m.s.) 24 KV ( r.m.s.) 36 KV (r.m.s.) 72 KV (r.m.s.)

Power frequencydry/ wet withstandvoltage on primarywinding for oneminute


Lightning Impulsewithstand Voltage (1.2 x 50 µ s )


Specific ParticularsNumber of Phases 3 or 1 unearthed or earthedRatedTransformationVoltage Ratio

As per customer requirement

Number ofSecondary Windings

Upto 3

Output Burden Upto 500VAAccuracy Class For Metering : 0.2, 0.5,1.0 & 3.0

For Protection: 3P, 6PVoltage Factor 1.2 Continuous & 1.5 for 30 Sec or 1.9 for 30 Sec or 1.9 for 8 hours

COMBINED CTPT SET

APPLICATION- Combined CTPT Metering Units that are available up to 33 kV class are manufactured specifically to

meet the needs of Electricity Supply and captive generating units. The C.T.-P.T. metering sets of this type as the name

suggests are used for measurement of power on high voltage side. The C.T.-P.T. sets are installed before the main

transformer and the main line goes through C.T.-P.T. set to the main transformer. Metering equipment is connected to the

secondary side of the C.T.-P.T. set. As the accuracy of the C.T.-P.T. set is high & as it is connected before the transformer,

measurement of power is much more accurate compared to the metering done on L.T. side, the transformer losses are

also included in the measurement.

OIL COOLED CTPT SET RESIN CAST 3 Ø PT

Technical Specification For Oil Cooled CTPT Set As Per IS:2705 & IS:3156





Lightning Impulse withstand Voltage (1.2 x 50 µ s )


System Particulars3 Phase 4 Wire with Isolated / Floatingneutral as well as solidly earthed.

3 Nos. CTs & 1 No. 3 - Phase PT

3 Phase 4 Wire with Isolated / Floatingneutral as well as solidly earthed.

2 Nos. CTs & 1 No. 3 - Phase PT

Specific ParticularsShort Time Thermal Current (Ith) As per customer requirement.

In general CT is to be specified with STF of 100 for 1 Sec.or STC (lth) equal to the system fault level whichever islower. KA ( r.m.s. )

Output 10 VA to 100 VA for PT and 5 VA to 30 VA for CTAccuracy Class 0.2S, 0.2, 0.5S, 0.5, 1.0 for CT. and 0.2, 0.5 & 1.0 for PTSecondary Current (CT) 1 Amp or 5 AmpSecondary Voltage (VT) 110 Ph-Ph or 110/v3 V, Ph-NeutralPrimary Current (CT) As per customer requirement.Primary Voltage (VT) 11KV, 22KV, 33KV for 3-Phase PT

11/v3, 22/v3, 33/v3 for 1-Phase PT

Technical Specification For resin cast CTPT Set As Per IS:2705 & IS:3156





Lightning Impulse withstand Voltage( 1.2 x 50 µ s )



7.6/50 15.2/50 23.0/50

System Particulars3 Phase 4 Wire with Isolated / Floatingneutral as well as solidly earthed.

3 Nos. CTs & 1 No. 3 - Phase PT3 Nos. CTs & 3 Nos. 1 - Phase PT

3 Phase 4 Wire with Isolated / Floatingneutral as well as solidly earthed.

2 Nos. CTs & 1 No. 3 - Phase PT2 Nos. CTs & 3 Nos. 1 - Phase PT

Specific ParticularsShort Time Thermal Current (Ith) As per customer requirement.

In general CT is to be specified with STF of 100 for 1 Sec.or STC (lth) equal to the system fault level whichever islower. KA ( r.m.s. )

Output 10 VA to 100 VA for PT5 VA to 30 VA for CT

Accuracy Class 0.2S, 0.2, 0.5S, 0.5, 1.0 for CT.0.2, 0.5 & 1.0 for PT

Secondary Current (CT) 1 Amp or 5 AmpSecondary Voltage (VT) 110 Ph-Ph or 110/v3 V, Ph-NeutralPrimary Current (CT) As per customer requirement.Primary Voltage (VT) 11KV, 22KV, 33KV for 3-Phase PT

11/v3, 22/v3, 33/v3 for 1-Phase PT

Low Tension Pilfer Resistant Metering Cubicle

Types:- L.T to 33 KV Voltages Class1/2/3 one to Five core availableVarious outline Size as per Customer requirementBar and Wound primary Type

Features:- Compact in design, Low cost and maintenance free.Used mainly for outdoor LT metering on poles.Separate Meter compartment and CT compartment.CT's are epoxy molded to avoid any pilferage.CT's are provided with various inner diameter according to requirement of cable size.Complete dust & vermin proof confirming to IP55 with locking and sealing arrangement..No secondary circuit wires are accessible outside which avoids chances of energy theft.Stable accuracy over life time.Provision of installing modem inside the cubicle providedNon hygroscopic CT's.

Application:- Precision check metering, control indication...Largely used for Metering of LT consumers .

SpecificationSL. Particulars Unit Description

1 Type of Box Sheet Metal or SMC2 Type of CT Epoxy Resin Cast Bar Primary L.T.C.T3 Operating System Voltage V 230 , 4404 Power Frequency Dry

withstand VoltageKVp(rms) 3 to 6

5 Transformation ratio Amp 50 to 1200 or as per requirement6 Rated Secondary Current Amp 5.07 Fault Level of CT KA upto 6 KA for 1 or 3 sec8 No of CT no 4 Nos for 3Phase 4Wire System

3 Nos for 3Phase 3Wire System9 Output Burden VA Upto 30 at 0.8 pF lag.

10 Accuracy class -

EPOXY RESIN CAST PILFER RESISTANT METERING CUBICLE/PANEL

Types:- 11KV to 33KV Voltage Class3 no C.T's & 3 No Single Phase VT'S3 no C.T's & 1 No Three Phase VT'S

Features:- Compact in design, Low cost and maintenance free.Separate Meter compartment and CT-PT compartment.Available in 3Phase 3Wire and 3Phase 4Wire systems.CT's & PT's are epoxy molded to avoid any pilferage.Complete dust & vermin proof confirming to IP55 with locking and sealingarrangement.No secondary circuit wires are accessible outside which avoids chances of energytheft.Stable accuracy over life time.Designed mainly for Indoor applicationsNon hygroscopic CT's & PT's.

Application:- Precision Revenue metering, control indication.Used for Double Metering of Transformers.Used on Feeder Metering for energy accounting.

SpecificationSL. Particulars 11 KV 15 KV 22 KV 33 KV

1 Highest System Voltage kV 12 17 24 362 Power Freq dry/wet withstand voltage KVp rms 28 36 50 703 Lightning Impulse Voltage 1.2/50 µs KVp 75 110 125 1704 Partial Discharge Measuring Voltage/ Limit. KV/pC 7.6KV/50pC 10.8KV/50pC 15.2KV / 50pC 23KV / 50pC5 Transformation ratio Amp As per customer requirement.6 Rated Primary Current Amp Upto 1000 Amp7 Rated Secondary Current Amp 1.0, 5.08 Rated Secondary Voltage Volts 110/√3 for Ph-Neutral, 110 for Ph-Ph9 Rated Secondary Current Amp 1.0, 5.0

10 Short Time Current Rating KA(rms) Upto 25KA for 1 or 3 sec11 Out put Burden VA Upto 30 at 0.8 pf lag for CT

Upto 100 at 0.8 pf lag for PT12 Accuracy class -

For CT - 0.2, 0.2s, 0.5, 0.5s, 1.0, 3.0 & 5.0For VT - 0.2, 0.5, 1.0

Office address :

F-285, UPSIDC, Khichra Industrial Area,Meerut-Guwahati Road,Ghaziabad – 201001, UP, India

Phone No. : +91-9210927863 / +91-9313115696/ +91-9868667484E-mail ID : [email protected] /[email protected] / [email protected]

Contact Details :

Mr. Shokaut Ali / Mr. Sharafat Ali

Phone No. : +91-9313115696 / + 91-9868667484E-mail ID : [email protected] /

[email protected] / [email protected]

Mr. Akram Saifi

Phone No. : +91-9210927863E-mail ID : [email protected] /

[email protected] / [email protected]

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