SPB Engineers (India)

Microprocessor Based Automatic Oil Insulation Test Kit - Model OTS-PR-CG 100 KV

Fully automatic measurement of dielectric strength (break down voltage) of insulating oils used in transformers, circuit breakers, CTs, PTs, etc.

Features:

• Fully automatic microcontroller operation with option for automatic / manual selection
• Pre-programmed international test standards programmed in the instrument memory
• Fully automatic option to set stand time, stir time, rate of rise of voltage, number of tests to be carried out as per selected standard. Can be set in Custom Mode also
• The operator is required to fill the test sample in the test cell and select the required test and the test is carried out automatically
• Backlit LCD display for user friendly operations during the test process and also displays fault condition messages such as open ground and cover open
• All user selected programmes are chosen through keypad
• Test result can be printed with test type, date, time, breakdown test voltage, averages and deviations
• Test readings are recorded and stored in the memory and can be transferred via RS232 interface to a PC
• Safety interlock prevents access to the high voltage terminals during testing
• The design ensures a high level of safety for the operator
• The high voltage chamber is covered with a polycarbonate door

Specifications:

• Voltage Range: 0 to 100 KV AC, Resolution: 0.1 KV, Accuracy: ± 1 KV
• Trip Current: < 10 mA
• HV Transformer: 50-0-50 KV with mid point earth, double wound, air cooled, epoxy moulded
• Variac: Motorised
• Shut Down Time: < 1 milisecond
• Oil Test Cell: Transparent polycarbonate moulded
• Gap Gauge: 1 mm, 2 mm, 2.5 mm and 4 mm
• Controls Mains ON / OFF, HT ON / OFF, Hold, Stirrer ON / OFF, Timer ON / OFF, Auto / Manual Mode, Reset Switch
• Test Standards: IEC 156, IS 6792, ASTM D816, ASTM D877, UNE 21, BS 5730, BS 5874, Withstand Test, Proof Test, Custom Tests
• Automatic Setting Options: Stand Time, Stir Time, Rate of Rise of Voltage (0.5 KV to 5 KV adjustable), number of tests to be carried out as per the selected standard
• Data Storage Memory: 100 test results
• Printer: Built-in alphanumeric printer with timed and dated results with standard deviation
• Communication Port: RS232 port interface to download data to PC with Windows based data acquisition software
• Keypad: 12 keys soft touch keypad for test selection and other operations
• Display: Large backlit LCD display for test menu, setup screens, test results
• Indications: Cover Open, Wait Time, HT ON, KV Rise, Stir Time, Stand (Settle) Time, Temperature and BDV
• Beeps: Audible beep on breakdown and long beep on completion of test
• Safety Features: Interlock on high voltage test chamber, zero start protection, double ground protection, all safety interlock to avoid shocks with indications, protected against overloads and short circuits
• Safety Standard Compliance: IEC 61010
• EMI / EMC Standard Compliance: IEC / EN 61326
• Accessories: Mains cord, oil test vessel with adjustable electrodes, GO, NO GO gauge for adjusting gap, stirrer, pairs of Mushroom, Spherical and Cylindrical electrodes
• Optional Accessory: Digital 100 KV Calibrator
• Operating Temperature Range: - 10 Degree C to 50 Degree C
• Humidity Range: Less than 95%

Additional Information:

• Item Code: OTS-PR-CG-1OOKV
• Delivery Time: 4 to 6 weeks from the date of receipt of order

Oil Insulation Test Set - Model OTS-100M

For testing of dielectric strength (break down voltage) of insulating oils used in transformers, circuit breakers, CTs, PTs, etc.

Feature:

• Control unit with a HT transformer operates on mains voltage of 220 volts

• Robust & sturdy motorised variac is provided to increase the voltage from 0 to 100 KV (also available 0 to 60 KV and 0 to 80 KV)

• Zero start facility is provided for safety

• High voltage chamber with interlocking to ensure operator safety

• Digital volt meter for reading 0 to 100 KV

• Over voltage protection

• Very fast tripping at dielectric breakdown

• Motorised oil break down voltage with rate of rise of 0.5 to 5 KV / sec

• Push buttons for control

• Testing transformer of 1000 VA capacity for output 100 KV

• 2 terminal bushings to support the testing cell with studs mounted on top of the transformer

• Oil testing cell has a mushroom cell with dimensions & gap in accordance with IS specifications with a gauge to calibrate the gap

• Timer provided for Stir Time

Specifications:

• Power Supply: 220 V AC, 50 Hz, 1 phase
• Voltage Range: 0 to 100 KV AC
• Rate of Rise of Voltage: 2 KV per second
• Indication: 3½ digit panel meter
• Resolution: 1 KV
• Accuracy: ± 1%, ± 1 KV
• Controls Separate switches for increase, decrease, HT on & off, stirrer
• Safety: Safety interlock for high voltage chamber and open ground for operator safety. Protected against overloads and short circuits
• Accessories Oil test cell with lid, mushroom electrodes fitted on test cell, GO-NO GO gauge, instruction manual

Additional Information:

• Item Code: OTS-100M
• Delivery Time: 4 to 6 weeks from the date of receipt of order

Digital Metal Electrical Conductivity Meter - Model MK-2M

Features:

• % conductivity referenced to
  IACS 
•  Direct reading 
• High accuracy
• Portable, compact
• Battery as well as mains power supply operation
• Measurement time less than 5 seconds per sample

Applications

• Measurement of absolute conductivity of electrical hardware & electrical conductors made of copper, brass, aluminium and their alloys
• Segregation of mixed lot of non-ferrous metals
• Can be used for ingots, forgings, sheets, castings, bars of any conductive metals such as aluminium, copper, brass, gold, silver & magnesium

Specifications

• Range of conductivity: 10% to 110% IACS (10 meter / ohm mm to 64 meter / ohm mm)
  Note: 100% IACS = 58 meter / ohm mm
• Accuracy: Indicated value ± 2%
• Test probe diameter: Standard 12 mm (8 mm or 10 mm on request)
• Test samples: Brass & copper test pieces for initial setting of the equipment
• Power: Mains 230 V AC and 8 x 1.2 V rechargeable cell with built-in battery charger
• Display: 3½ digit panel meter powered by 1 x 9 V dry cell
• Weight: 1.5 kg

Additional Information:

• Item Code: MK-2M
• Delivery Time: 4 to 6 weeks from the date of receipt of order

• Specially designed for routine testing and sorting of paper and polypropyline capacitors used for correcting loss factor of industrial loads
• Direct reading of tan delta in percentage
• No tuning necessary prior to every reading
• Higher sorting speed
• 200 capacitors can be checked per hour

• Capacitance Range: 1 to 1000 mfd
• Loss Factor Range: 0.0002 to 0.1999
• Resolution: 0.0001 tan delta
• AC Voltage: 150 to 600 V (applicable by external power source)
• Indication: 31/2 digit DPM
• Speed of Testing: 200 capacitors per hour (with a suitable jig)
• Warm Up Time: 5 minutes
• Weight: 11 kg
• Construction: Sturdy metal cabinet for bench top use

Additional Information:

• Item Code: LPO-5D
• Delivery Time: 4 to 6 weeks from the date of receipt of order

Capacitance & Tan Delta Test Set - Semi Automatic

Comprising of Semi Automatic C & Tan Delta Bridge - Model: MLS-11DS & High Voltage Power Supply - Model: HLS-12SA / HLS-5SA

Features:
1) Direct reading. No calculation required
2) Indication of Test Voltage, Leakage Current, Capacitance Value, Tan Delta Value, Temperature and Humidity
3) Data logging with graph of Voltage vs Tan Delta to know the Tan Delta gradient & data analysis for
comparison with old results / manufacturer's data in PC Software
4) As per IEC Temperature correction for Tan Delta
5) Executes all the test modes / voltage automatically once set through software
6) Built in Thermal Printer for ON site printout
7) Interference Suppression Unit provided to work in switchyards under heavy induction
8) Data storage for 100 results
9) Built in Temperature and Humidity indication
10) Modes of operation:
a) UST - Ungrounded Specimen Test - This mode is used when the object under test is not grounded. This test provides most accurate results
b) GST - Grounded Specimen Test. This mode is used when the object under test is permanently grounded
c) GSTg - Grounded Specimen Test with Guard. 3 combinations. This mode is used for measuring the stray capacitances and separating them from basic measurement in GST mode

Specifications:

• Capacitance: Range 1 pF to 1.1 mF, Resolution 0.01 pF, Accuracy +- 0.2% of the reading
• Tan Delta: Range 0% to 100%, Resolution 0.001%, Accuracy +- 1% of the reading
• Test Voltage: Range 100 V to 12 KV / 5 KV, Resolution 1.0 V, Accuracy +- 1% of the reading
• Current: Range 0 to 200 mA, Resolution 1 mA, Accuracy +- 1%
• Power Factor: Range 0 to 1, Resolution 0.01%, Accuracy +- 1%
• Other Parameters: Apparent Power, True Power, Reactive Power
• Temperature Correction: As per IEC for Tan Delta @ 20 DegreeC
• Standard Capacitor: Built in SF6
• Display: Large 4 line LCD
• Keypad: Multi key, alphanumeric
• Software: Windows based analysis software for downloaded data
• Interface: RS232 port
• Protection: Zero start, interlocks, open ground, over current, over voltage, over temperature, foot switch for HV ON
• Cables: HV, LV, Grounding, Interconnecting
• Calibrator Box: 1 Capacitance and 3 Tan Delta Values at 5 KV

Additional Information:

• Item Code: MLS-11DS-HLS-12SA

Electrical properties of insulating systems changes due to age and continuous electrical stress. By measuring electrical properties such as Capacitance and Tan Delta regularly it is possible to ensure the operational reliability of HV insulation systems and to avoid costly breakdowns. This is particularly important for high voltage bushings, power transformers, generator, power capacitors, HT Cables etc.

SIVA Capacitance & Tan Delta test set comprises of C & Tan Delta Bridge model MLS 11-D, high voltage power supply model HLS-12 with built in standard capacitor and set of cables.

The compact design of the bridge uses the principle of three winding differential transformer on a high permeability u metal core. The bridge is contained in a sturdy metallic housing with u metal lining which shield it from external electromagnetic and electrostatic influences. Built in battery powered null indicator makes the bridge suitable for operation in workshop, factories, high voltage sub-stations, Switch yard etc.

The high voltage power supply model HLS-12 is provided with built in standard capacitor

Additional Information:

• Item Code: MLS-11D-HLS-12

Oil Test System - Model OTS-2K1

With Three Terminal Oil Test Cell and Heating Chamber for Oil Cell

Loss Factor, Permitivity, Volume Resistivity Measurement of Transformer Oils, Petroleum Jelly as per IS6103-1971, IS6262-1971 and IS335-1972

Features

• Digital readout of Insulation Resistance, Dielectric Constant, Tan Delta, AC / DC Voltages
• System is provided with Mode Selector Switch so that once the oil cell is connected, it can measure all three parameters in different modes without handling the test leads
• Standard Capacitor and Standard Resistor can be provided for verification of proper operation and calibration of the system
• Provision of Guard terminal. No automatic guard potential regulator is required
• To be used with Three Terminal Oil Cell Heating Chamber for Oil Cell
• Digital Null detector provides highly accurate results
• The equipment is compact, light, portable for table-top laboratory use

Specifications

OTS-2K1

• Loss Angle Range: 19.99% and 199.9% FSD
• Dielectric Constant Range: 0.10 to 10.00
• Test Voltage for Tan Delta: 0 to 600 V AC
• Resistance Range: 10 Meg Ohm to 10⁹ Meg Ohm in 7 ranges which together with Siva Three Terminal Oil Cell measures the resistivity of the order of 62000 x 10¹² Ohm cm
• Test Voltage for Resistivity: + 500 V DC with 0.1% stability
• Indication: 2 nos. 3½ digit panel meters for Tan Delta %, Null, IR, AC / DC Voltage

Three Terminal Oil Cell

• Cell Material: Stainless Steel SS316
• Insulation Material: Teflon for separating the HV Electrode, Guard Terminal LV Electrode
• Cell Constant: 620 nominal
• Cell Capacitance: 55 pF nominal
• Cell Volume: 60 ml
• Standard: IS 6103-6262-1971

Heating Chamber for Oil Cell

• Temperature: Up to 150 DegreeC
• Indication: 3½ digit panel meter
• Sensing Probe: PT100
• Heating Element: Induction type heating coil

Additional Information:

• Item Code: OTS-2K1
• Delivery Time: 4 weeks from the date of receipt of order

Automatic Dielectric Constant, Tan Delta and Resistivity Meter - Model CTRM-1

Features

• No balancing or calculations required to calculate Volume / Surface Resistivity and Dielectric Constant / Tan Delta
• Direct reading on LCD display
• Standard compliance IEC 60250, IS 4487, Test Jig for solids conforms to ASTMD 257
• Built in thermal printer for test results
• Serial RS232 port for downloading data
• Built in storage of 100 test results
• Can be used to check Volume Resistivity and Dielectric Constant of liquid samples like transformer oil using Three Terminal Oil Cell and Heating Chamber for Oil Cell

Specifications

• AC Test Voltage: 10 V to 500 V settable
• DC Test Voltage: 10 V to 500 V settable in 100 V steps
• Resolution: 0.1 V
• Accuracy: +/- 1%
• Capacitance Range: 1 pF to 10000 pF, Resolution 0.01 pF, Accuracy 0.5% +/- 1 pF
• Dielectric Constant Range: 1 to 100, Accuracy +/- 0.05%
• Dissipation Factor (Tan Delta): 0 to 100%, Resolution 1 x 10^-5 (0.001%), Accuracy +/- 1% +/- 2 x 10^-4
• Insulation Resistance: 1 M Ohm to 100 T Ohm, Accuracy + - 1% up to 1 G Ohm and +/- 2% above 1 G Ohm
• Volume and Surface Resistivity: Max. up to 10¹⁷ Ohm cm

Additional Information:

• Item Code: CTRM-1
• Delivery Time: 6 to 8 weeks from the date of receipt of order

Tan Delta System for Enamelled Wires - Model EW-188

Specially designed for quality control of enamelled wire. The precise measurement of tan delta is very important for the characterisation of hardening state of the enamelled insulation

EW-188 can be used for single point measurement as well as determination of bending point. Tan delta and temperature are displayed simultaneously. The curve measurement can be automated on a PC or laptop using suitable software supplied with the instrument

Salient Features

• Digital readout of Tan Delta and Temperature
• Software based PID temperature control
• Windows based user-friendly software
• USB comunication port for PC or laptop connection
• Multiple graph comparison on screen
• Suitable for single point and bending point measurement
• Fast curve plotting
• Automatic balancing
• Direct display

Technical Specifications

• Test Voltage: 10 V AC (peak to peak)
• Test Frequency: 1 KHz
• Tan Delta Range: 0.001% to 19.99%
• Tan Delta Resolution: 0.01%
• Tan Delta Accuracy: ± 1% of the reading ± 1 digit
• Indication: 3½ digit panel meter
• Temperature Range: Ambient to 300 Degree C
• Temperature Resolution: 1 Degree C
• Temperature Accuracy: ± 1% of the reading
• Temperature Control: PID, PID Accuracy: ± 1 Degree C
• Indication: 3½ digit panel meter
• Controls: Power ON, Zero / Operate
• Port: USB communication port
• Software: Windows based data acquisition softwre
• Safety Standards: IEC 61010-1
• Power Supply: 230 V AC, 50Hz
• Operating Temperature: 0 to 50 Degree C
• Humidity: 80% RH at 40 Degree C

NOTE: PC or laptop is not in the scope of supply

Additional Information:

• Item Code: EW188
• Delivery Time: 6 to 8 weeks from the date of receipt of order

Digital Million Megohm Meter - Models LS-3BD & LS-3CD

Analog Million Megohm Meter - Models LS-3B and LS-3C

For measuring Insulation Resistance of electric components such as paper, plastic and ceramic capacitors, insulators, semi conductors, switches, connectors, transformers, motors, etc.

Recommended for measurement of insulation resistance of Cables, Grooved Rubber Plates (as per RDSO recommendations), Paper Capacitors, Plastic Capacitors, Ceramic Capacitors, Insulators, Semi Conductors, Switches, Connectors, Transformers, Motors, etc. as per BIS recommendations

Features

• Push button controls for rapid testing
• Indication for Charge, Measure and Discharge modes
• Tests as per BIS and RDSO recommendations
• Wide measurement range
• Fully protected against overload and short circuits
• Completely solid state circuitry for drift free operation
• Guard terminal provided
• Suitable for earthed samples
• Can be used with Three Terminal Oil Cell and Heating Chamber for Oil Cell to measure Resistivity of Transformer Oil and Petroleum Jelly

Specifications

• DC Test Voltages:
• Model LS-3B / LS-3BD - 63 V, 100 V, 500 V
• Model LS-3C / LS-3CD - 100 V, 250 V, 500 V, 1000 V
• Resistance Range: 10 M Ohm to 10⁹ M Ohm in 6 ranges
• Indication: Analog 4½" Taut Band Panel Meter or Digital Panel Meter
• Overload Protection: Fully protected against wrong selection of breakdown of components under test
• Warm Up Time: 1 minute

Additional Information:

• Item Code: LS-3B-LS-3C
• Delivery Time: 4 weeks from the date of receipt of order

Digital Million Megohm Meter - Models LS-3BM & LS-3CM

For measuring Insulation Resistance, Volume Resistivity and Surface Resistivity with Test Jig as per ASTM D257

Features

• No calculations required for Volume and Surface Resistivity readings
• Test Jig as per ASTM D257 
• Built in storage of 100 test results 
•  Built in thermal printer for test results
• Built in timer

Specifications

• DC Test Voltages
• Model LS-3BM: 10 V to 500 V in 10 V steps
• Model LS-3CM: 10 V to 1000 V in 10 V steps
• Accuracy: ± 1%
• Stability: ± 0.1%
• Resistance: Auto ranging
• Insulation Resistance Range: 10³ M Ohm to 10¹⁵ M Ohm
• Volume Resistivity Range: 28.3 x 10¹⁵ Ohm cm (1 cm sample thickness)
• Surface Resistivity Range: 18.8 x 10¹⁵ Ohm cm
• Resolution: 0.1
• Accuracy: ± 1% up to 1 G Ohm and ± 2% above 1 G Ohm
• Memory: Built in storage of 100 test results
• Printer: Thermal
• Display: 4 line LCD display
• Overload Protection: Fully protected against wrong selection of breakdown of components under test
• Warm Up Time: 1 minute

Additional Information:

• Item Code: LS-3BM-LS-3CM
• Delivery Time: 6 to 8 weeks from the date of receipt of order

Microprocessor Based Transformer Winding Resistance Meter - Model TWRM-25AuP

For measurement of Winding Resistance of Transformers, Inductors, Generators, Motor Windings, Tap Changers, Bus Bar Contacts, Power Cables

Features

• It is specially designed for highly inductive objects
• Gives very fast readings for 3 phase star delta any combination transformers
• The built in open circuit voltage of DC Supply ensures that core of the transformer is saturated for fast measurements to be taken
• Care is taken to absorb the back emf of such transformers
• For user safety, indication for discharges is provided on the front panel if the current through the winding under measurement is disturbed /discontinued
• Built in 25 Amp regulated and highly stable current source
• Simultaneous measurement of Voltage and Current
• Two channels to measure two windings at a time
• Uses ratio-metric circuit where the resistance of specimen is compared with known internal standard
• Protection against inductive kickback and discharge
• Automatic discharge and visual indication for discharge
• Automatically demagnetises the transformer core after test
• Line voltage interference suppression, making instrument most suitable for field applications
• Thermally Protected Power Supply
• Internal memory of 100 test results
• Built in printer, RS232 port, Windows based data acquisition software

Specifications

• Test Current: 25 Amp, 10 Amp, 5 Amp, 1 Amp, 0.1 Amp & 0.01 Amp
• Resistance Range: 0.1 m‎Ω to 2000‎ Ω auto ranging
• Resolution: 0.1 μΩ at 1.9999 milliohm
• Accuracy: ± 0.1% of reading ± 2 digits
• DC Power Supply: Regulated and highly stable 50V DC
• Display: 4½ digit LCD panel meter
• Keypad: 12 keys soft touch
• Communication Ports: RS232 to download data
• Software: Windows based software for data downloading
• Safety Standard: IEC 61010 complied
• EMI / EMC Standard: IEC 61326 complied
• Power Supply: 230 V AC, 50 Hz
• Operating Temperature: - 10 Degree C to 50 Degree C
• Operating Humidity: 90% non condensing

Additional Information:

• Delivery Time: 6 to 8 weeks from the date of receipt of order

Automatic Transformer Ratio Meter - Model ATRM-1M

Automatic Ratio Meter with direct digital display of ratio. The instrument measures the voltage transformation ratio of 1 phase and 3 phase delta or star connected transformers, CTs, PTs without the need for balancing

Features

• Fully automatic, no balancing required
• LCD display
• Instrument uses ratio-metric circuit in which the ratio of test specimen is compared with known internal standard
• Displays the ratio of high voltage winding to low voltage winding at low flux in the core
• Measures and displays transformer ratio, phase angle deviation and excitation current
• True 4 terminal measurement
• Fully protected against any wrong connections. Fast acting VBO trips in case of stepping up of test voltage
• Test voltages enable testing of both power and current transformers

Specifications

• Ratio Range: 0.8 to 20,000 auto ranging
• Test Voltage: 48 V and 4.8 V
• Phase Angle Range: ± 90 Degree, Resolution ± 0.01 Degree, Accuracy ± 0.5 Degree
• Excitation Current: 2 Amp
• Resolution: 0.001 in the range 10
• Indication: 4 line LCD display for Ratio, Excitation Current and Phase Angle Deviation
• Polarity: Facility to change polarity for instrument
• Display of Ratio / Excitation Current / Phase Angle Deviation

Additional Information:

• Item Code: ATRM-1M
• Delivery Time: 6 to 8 wees from the date of receipt of order

Microprocessor Based Automatic Transformer Ratio Meter - Model ATRM-1uP

Microprocessor Based Automatic Ratio Meter with direct digital display of ratio. The instrument measures the voltage transformation ratio of 1 phase and 3 phase delta or star, without neutral and zigzag connected transformers, CTs, PTs without the need for balancing

Features

• Fully automatic, no balancing required
• Suitable for 765 KV yards
• Measures and displays transformer turns ratio, phase angle, vector group, excitation current, polarity and pass/fail for ratio reading with calculated ratio
• Instrument uses ratio-metric circuit in which the ratio of test specimen is compared with known internal standard
• Fully protected against any wrong connections across the transformer. Fast acting VBO trips in case of stepping up of test voltage
• Test voltages enable testing of both power and current transformers
• Keypad for setting testing parameters
• 4 line, 20 character backlit LCD display for displaying keypad selected parameter, error/warning messages like incorrect connection, accidental step up mixconnection
• In built memory for test results and RS232 port to download test data to PC
• Built in thermal printer for on-site printouts

Specifications

• Ratio Range 0.8 to 12,000, Ratio Accuracy +- 0.1 Degree, Resolution+- 2 digits
• Test Voltage 80 V, 40 V and 8 V AC, selectable
• Phase Angle Range +- 90 Degree, Resolution 0.01 Degree, Accuracy +- 0.5 Degree
• Excitation Current 500 mA at 8 V, Accuracy +- 1 mA, Resolution 0.1 mA
• Indication LCD display for Ratio
• Storage Memory Built in for up to 100 test results
• Communication Port & Software RS232 port for data download to PC, Windows based software
• Protection Fully protedted against any wrong connections
• Cables Three phase test cables (15 meters), ground cable (10 meters), power supply cord (10 meters)
• Power Supply 230 V AC +- 10%, 50 Hz +- 5%
• Operating Temperature Range - 10 DegreeC to 55 DegreeC
• Humidity 5% to 95% RH, non-condensing

Compliance to Standards

• Safety IEC 61010
• EMI / EMC IEC 61326
• Vibration Test IEC 60068-2-6
• Shock Test IEC 60068-2-27
• Bump Test IEC 60068-2-29
• Damp Heat Test IEC 60068-2-78

Additional Information:

• Item Code: ATRM-1uP
• Delivery Time: 6 to 8 weeks from the date of receipt of order

Digital Surge Comparison Tester - Models DST-05 (5 KV) / DST-10 (10 KV)

Application

• Detects coil to coil, phase to phase, turn to turn, layer to layer, winding to winding shorts, reverse coil connections, open coils and faulty insulation to ground
• Open circuit and ground detection
• Suitable for testing of traction / AC / DC motors, armatures, 1 and 3 phase windings, wound stator coils, LT coils, stators, transformer coils, solenoids and chokes

Features

• Front panel controls for ease of use
• Compact, rugged and solid state design
• Highly sensitive fault detection capability to detect even a single turn short in the coil
• Test leads insulated to 45 KV rating
• Digital storage oscilloscope with bright display to analyse the faults easily
• 1 phase / 3 phase test select switch

Technical Specifications: Model DST-05 (5 KV)

• Surge Voltage (max.): 0 to 5 KV
• Pulse Current (max.): 330 Amps
• Pulse Energy (max.): 1.0 Joules
• Surge Frequency: 50 Hz, ± 3%
• Input Voltage: 230 V ± 10 V
• Power Consumption: 130 W
• Display: Digital storage oscilloscope

Technical Specifications: DST-10 (10 KV)

• Surge Voltage (max.): 0 to 10 KV
• Pulse Current (max.): 660 Amps
• Pulse Energy (max.): 1.0 Joules
• Surge Frequency: 50 Hz, +- 3%
• Input Voltage: 230 V ± 10 V
• Power Consumption: 130 W
• Display: Digital storage oscilloscope

• EHT cables for connecting surge outputs
• Power input cable with 5 Amp plug
• BNC cable for oscilloscope

Optional Accessories

• Three contact armature test probe
• Bar-to-bar armature test probe
• Three phase test select switch (must be ordered with the instrument)
• Foot switch

Additional Information:

• Item Code: DST-05-DST-10
• Delivery Time: 8 weeks from the date of receipt of order

Application

• Detects coil to coil, phase to phase, turn to turn, layer to layer, winding to winding shorts, reverse coil connections, open coils and faulty insulation to ground
• Open circuit and ground detection
• Suitable for testing of traction / AC / DC motors, armatures, 1 and 3 phase windings, wound stator coils, LT coils, stators, transformer coils, solenoids and chokes

Special Features:

• Fast and accurate PC / Laptop based automatic testing with Windows based software
• Master less testing
• Statistical analysis
• Cumulative reports
• Raw report
• Individual Pass / Fail Reports

Test Position I: For testing of stator winding
Test Voltage: 0-5 KV (adjustable)
Pulse Current: 330 Amps Max.
Pulse Energy: 5 Joules Max., Two Channels
 
Test Position II: For testing of armature winding
Test Voltage: 0-1 KV (Adiustable)
Pulse Energy: 1000 Amps Max.
Pulse Energy: 2.5 Joules Max., One Channel
Inductance of the Object: Mon 10 μH
Voltage Setting Accuracy: ± 2%

Technical Specifications: Model ADST-10 (10 KV)

Test Position I: For testing of stator winding

Test Voltage: 0-10 KV (Adiustable)

Pulse Current: 630 Amps. Max.

Surge Wave form captured by single pulse triggering

Pass/Fail Detector: 1. By Area comparison, 2. By Differential area comparison, By Corona comparison

Coil To Coil Comparison: Wave form storage comparison

No. of cycles to be compared: Able to compare predefined cycles by setting start and end points of wave form to be compared

Testing Software: Windows 7

Report Generation in PC with Serial Number and Date wise: 1. Pass/Fail Report, 2. Raw Report, 3. Cumulative Report

With Statistical Analysis Software

Additional Information:

• Delivery Time: 8 weeks from the date of receipt of order

• Resistance Test, Resistance Unbalance Test, Surge Comparison Test, AC High Voltage Test, Insulation Resistance Test, Inductance Test
• Fast and accurate testing
• Microsoft Windows compatiable software
• PC based / Laptop based
• USB Printer
• Pass/Fail Indication
• Operator Key Console (Optional)
• For Stator Coils, Motor Rotors & more
• Low cost masterless testing

• Test Method: 4 wire Kelvin (auto ranging)
•  Resistance Range: 20 mOhm - 200 mOhm, 200 mOhm - 2 Ohm, 2 Ohm - 20 Ohm, 20 Ohm - 200 Ohm, 200 Ohm - 2 KOhm
• Resolution: 3½ digits
• Accuracy: 0.4% F. S. ranges in each range
• Temperature Sensing: RTD Temperature Sensor
• Temperature Compensation: for 20 degree C or user defined

• Unit: %
• Formula Used: [(RA+RB)/RA+RB)] X 100

• Test Voltage: 500 V to 3000 V
• Voltage Accuracy: ± 3%
• Pulse Energy : 0.5 Joules Max.
• Current: 0-20 mA or 0-100 mA Max
• Comparison: Highly reliable, error index algorithm with settable PASS/FAIL

• Test Voltage: 100 V to 3500 V
• Voltage Accuracy: ± 5 V
• Trip Limit: Programmable up to 20 mA or 100 mA
•  Duration: 1 to 60 sec
• Current: 0-20 mA or 0-100 mA Max
• Resolution: 0.1 mA
• Arc detection for improved fault detection

• Test Voltage: 500 V DC or 1000 V DC
• Settable Pass/Fail: 100 MOhm to 1000 MOhm

• 20 μH to 200 μH, 200 μH to 2000 μH, 2 mH to 20 mH, 20 mH to 200 mH, 200 mH to 2000 mH, 2H to 20H
• Accuracy: ± 2% of FSD

Additional Information:

• Delivery Time: 8 to 10 weeks from the date of receipt of order

Transformer Winding Resistance Meter - Model TWRM-10A

Features

• For measurement of Winding Resistance of Transformers, Inductors, Generators, Motor Windings, Tap Changers, Bus Bar Contacts, Power Cables
• It is specially designed for highly inductive objects
• Gives very fast readings for 3 phase star delta any combination transformers
• The built in open circuit voltage of DC Supply ensures that core of the transformer is saturated for fast measurements to be taken
• Care is taken to absorb the back emf of such transformers
• For user safety, indication for discharges is provided on the front panel if the current through the winding under measurement is disturbed /discontinued
• Built in 10 A regulated and highly stable current source
• Simultaneous measurement of Voltage and Current
• Two channels to measure two windings at a time
• True 4 terminal measurement
• Protection against inductive kickback and discharge
• Facility to demagnetise the transformer core after discharge
• Built in auto lead compensation
• Automatic discharge and visual indication for discharge
• Line voltage interference suppression, making instrument most suitable for field applications
• Thermally Protected Power Supply
• Displays current flow % of set current

Specifications

• Test Current 10 A, 5 A, 1 A, 100 mA, 10 mA
• Resistance Range 2 m to 2000 auto ranging
• Display Large backlit 4 line 20 character LCD
• Resolution 0.0001 m at 2 m, Accuracy +- 0.25% of reading, +- 5 digits
• DC Power Supply Regulated and highly stable 50V DC, 10 A
• Keypad 12 keys soft touch
• Cables and Leads Test cable 15 mtrs, ground cable, power cord, bag for cables
• Safety Standard IEC 61010 complied
• EMI / EMC Standard IEC 61326 complied
• Power Supply 230 V AC, +- 10%, 50 Hz, single phase
• Operating Temperature - 10 DegreeC to 50 DegreeC
• Operating Humidity 80% RH
• Weight Less than 10 kg (without leads)

Additional Information:

• Delivery Time: 4 to 6 weeks from the date of receipt of order

•  High Resolution of 1 micro ohm 
• Low dissipation in sample
• Solid state
• 6 Ranges : 1.999 μΩ to 199.9 Ω
• 4 terminal measurement method, eliminates leads and contacts resistance
• Digital read out

• Measuring Current: 2 Amp DC
• Range: 199.9 Ω, Resolution 0.1 Ω, 19.99 Ω, Resolution 0.01 Ω, 1.999 Ω, Resolution 0.001 Ω, 199.9 μΩ, Resolution 0.1 μΩ, 19.99 μΩ, Resolution 0.01 μΩ, 1.999 μΩ, Resolution 0.001 μΩ
• Accuracy: ± 0.5%, ± 2 digits

Additional Information:

• Item Code: LS-22D
• Delivery Time: 6 to 8 weeks from the date of receipt of order

Capacitance and Tan Delta Test Set - Fully Automatic Laptop Controlled

Comprising of Capacitance & Tan Delta Bridge - Model MLS-11DA and High Voltage Power Supply - Model HLS-12A / HLS-5A

Automatic Capacitance & Tan δ Test Set is useful for condition monitoring insulation tests for power sector equipments such as High Voltage (EHV Class) Bushings, Windings of Transformers (1 / 2 / 3 windings), Shunt Reactors, Current Transformers, Capacitor Voltage Transformers (CVT), Grading Capacitors of Circuit Breakers, Surge Arrestors and other electrical equipment at site automatically in a charged switch yard.

Features

• Automatic measurement of Capacitance & Tan Delta as per the test plan by automatic balancing
• Automatic voltage setting through software
• Laptop screen analysis & graphical plotting of Voltage vs Tan Delta to know the Tan Delta gradient and data analysis for comparison with old data and manufacturer's data
• Indication of leakage current
• Temperature correction as per IEC for Tan Delta at 20 Degree C
• Automatic selection of UST (3 combinations), GST & GSTg (3 combinations) Test Modes for measurement of 3 terminal object
• On site printout of test results with USB printer
• Automatic Interference Suppression
• Suitable for extraneous conditions in 400 KV switch yards under heavy induction
• Data storage of more than 10,000 test results

Specifications

• Capacitance Range 1 pF to 1.1 uF, Resolution 4 digits, Accuracy +- 0.3% of the reading
• Tan Range 0 to 100%, Resolution 0.0001, Accuracy +- 1% of the reading, +- 0.05%
• Voltage Measurement Range 0 to 12 KV AC, Resolution 1 V, +-1 % of the rdg. +- 2 digit
• Current Measurement Range 0 to 100 mA continuous & 0 to 200 mA short term, Resolution 1 mA, Accuracy +-1 % of the dg. +- 2 digit
• Standard Capacitor 100pF / 200pF, 12KV built-in
• Test Modes a) UST - Ungrounded Specimen Test - This mode is used when the object under test is not grounded. This test provides most accurate results; b) GST - Grounded Specimen Test. This mode is used when the object under test is permanently grounded; c) GSTg - Grounded Specimen Test with Guard. 3 combinations. This mode is used for measuring the stray capacitances and separating them from basic measurement in GST mode
  

Additional Information:

• Item Code: MLS-11DA-HLS-12DA
• Delivery Time: 6 to 8 weeks from the date of receipt of order

Automatic Dielectric Constant, Tan Delta and Resistivity Test Set - Model EW-188

With Three Terminal Oil Test Cell and Heating Chamber for Oil Cell

For measurement of Dielectric Constant, Dissipation Factor & Resistivity of Transformer and Insulating Oils

Features

•  Fully automatic Dielectric Constant, Dissipation Factor & Resistivity Measurement of Transformer and Insulating Oils
• Fully automatic operation
• In-built Printer facility for Test Report printing
• PC compatibility for downloading and storage of test report data
• Data storage of up to 250 test results
• Alphanumeric LCD display
• Keypad for numeric and soft function entries

Specifications

Capacitance, Tan Delta & Dielectric Constant

• Test Voltage Adjustable from 0 to 2500 V AC in steps, Accuracy +- 1.0% +- 1 Volt, Resolution 1 Volt
• Test Frequency 50 Hz
• Dielectric Constant Range 1.0 to 20.0, Accuracy +- 0.1% +- 0.01%, Resolution 0.001
• Tan Delta Range 10^-4 to 1.0, Accuracy +- 1%, Resolution 0.00001
• Dielectric Loss 0 to 10.00, Accuracy +- 1% +-1 digit

Resistance & Resistivity

• Test Voltage DC 100 to 1000 V DC (in selectable steps of 100 V), Accuracy +- 1.0%
• Resistance Range 10⁶to 10¹² , Resolution 0.01
• Resistance Accuracy +- 2% of reading up to 1 G and +- 5% above 1 G at higher range
• Resistivity Range 10⁹ cm to 10¹⁵ cm
• Resistivity Accuracy +- 2% of reading at 10⁹ to 10¹³ cm, +- 5% of reading at 10¹³ to 10¹⁵ cm

Oil Test Cell

• Construction 3 Terminal configuration
• Cell Capacitance 55 pF +- 1 pF nominal
• Material Stainless Steel SS316 with Teflon spacers
• Electrode Spacing 2 mm
• Volume 45 ml

Heating Chamber (Oil Test Cell Heater)

• Test Temperature Adjustable from 20 DegreeC (room temperature) to 100 DegreeC, Accuracy +- 0.5%
• Temperature Control +- 20 DegreeC

Display, Printer & Data Storage

• Display Alphanumeric LCD display
• Keypad 20 key keypad providing numeric and soft function entries
• Printer In-built dot matrix printer
• PC Compatibility RS 232 port for PC connectivity for downloading and storage of test report data
• Data Storage Up to 250 test results in-built memory

Power Supply, Temperature & Humidity Range

• Power Supply 230 V AC +- 10%, 50 Hz
• Operating Temperature - 10 DegreeC to + 50 DegreeC
• Humidity Ambient to 90% RH

Connectors

• Suitable HV, LV & Ground Leads
• Safety Interlock
• 3 Pin Mains Cord

Standard Calibrator

• Capacitance 1 value, Tan Delta 3 values, Resistivity 4 values at operating voltage of 500 V AC / DC
• With traceable calibration certificate

Additional Information:

• Item Code: OTS-EW188

Magnetic Analyzer - Model: MAO-9D

For detecting and measuring magnetic metal content in abrasive powders, such as aluminium oxide and silicon carbide

Features

• Instrument detects magnetic content in percentage as well as in PPM
• The magnetic content is directly displayed in percentage on the digital panel meter
• Useful for glass industries, grinding wheel industries, tea industries
• Fully solid state using latest integrated circuits
• Immune to short circuits, wrong selection of ranges, voltage fluctuations
• Open ground protection
• Interlock protection

Specifications

• Range 1 0.001% to 1.999%
• Range 2 0.01% to 19.99%
• Accuracy +- 2%, +- 2 digits
• Range Selection Toggle switch to select 1.999 and 19.99 ranges
• Protection Open Ground and Interlock Protection
• Cables Power cord - 2 mtrs, HV and LV cables - 2 mtrs
• Mains Power Supply 230 V AC +- 10%, 50 Hz, Single Phase
• Indication 3½ digit panel meter

Additional Information:

• Item Code: MAO-9D
• Delivery Time: 8 weeks from the date of receipt of order

Insulation Resistance Tester (Microprocessor Based) - Model: IR-5K4μP

Features:

• Microprocessor based
• Mains and internal rechargeable battery operated
• Internal discharge of object after test is completed
• RS232 port to download data to PC
• Compatible with EMI / EMC environment
• Suitable to work in 400 KV switchyards

Specifications:

• DC Test Voltage: 0.5 KV, 1 KV, 2.5 KV, 5 KV
• Insulation Resistance Range: 0 to 5000 GΩ
• Accuracy: ± 5% up to 1000 GΩ
• Leakage Current: Up to2.5 mA
• Short Circuit Current: < 2 mA
• Display: 4 Line, 20 Character LCD Display
• Memory: 100 test results
• Communication Port: RS232
• Battery: 12 V, 4 A

Additional Information:

• Item Code: IR5K4uP
• Delivery Time: 6 to 8 weeks from the date of receipt of order

Microprocessor Based Transformer Winding Resistance Meter - Model TWRM-10AuP

For measurement of Winding Resistance of Transformers, Inductors, Generators, Motor Windings, Tap Changers, Bus Bar Contacts, Power Cables

Features

• It is specially designed for highly inductive objects
• Gives very fast readings for 3 phase star delta any combination transformers
• The built in open circuit voltage of DC Supply ensures that core of the transformer is saturated for fast measurements to be taken
• Care is taken to absorb the back emf of such transformers
• For user safety, indication for discharges is provided on the front panel if the current through the winding under measurement is disturbed /discontinued
• Built in 10 A regulated and highly stable current source
• Simultaneous measurement of Voltage and Current
• Two channels to measure two windings at a time
• Uses ratio-metric circuit where the resistance of specimen is compared with known internal standard
• Protection against inductive kickback and discharge
• Automatic discharge and visual indication for discharge
• Automatically demagnetises the transformer core after test
• Line voltage interference suppression, making instrument most suitable for field applications
• Thermally Protected Power Supply
• Internal memory of 100 test results
• Built in printer, RS232 port, Windows based data acquisition software

Specifications

• Test Current 10 A,5 A, 1 A, 100 mA, 10 mA
• Resistance Range 2 m to 2000 auto ranging
• Display Large backlit 4 line 20 character LCD
• Resolution 0.1 at 2 m, Accuracy +- 0.25% of reading, +- 5 digits
• DC Power Supply Regulated and highly stable 50V DC, 10 A
• Keypad 12 keys soft touch
• Communication Ports RS232 to download data
• Software Windows based software for data downloading
• Safety Standard IEC 61010 complied
• EMI / EMC Standard IEC 61326 complied
• Power Supply 230 V AC, 50 Hz
• Operating Temperature - 10 DegreeC to 50 DegreeC
• Operating Humidity 90% non condensing

Additional Information:

• Item Code: TWRM-10AuP
• Delivery Time: 4 weeks from the date of receipt of order