Automatic Oil Insulation Test Kit
Oil insulation test kits are used for testing the dielectric strength of insulating oil used in Transformer, Circuit breaker, CTs, PTs etc. These oil insulation test kit are fully automatic and has the facility for Auto/Manual selections. To operate, the operator needs the sample in the test vessel & selects the required test to perform them as per many International (IEC & European standards) programmed into the instrument memory.
The salient features are as below:
• Stand time, stir times & rate of rise of applied voltage can be selected in Custom Mode also, one set of such selected mode can also be stored in the memory.
• The set can also perform withstand test(proof) tests where it allows the set voltage to preset value & hold for one minute to see if breakdown occurs.
• The backlit LCD is used for user friendly operations during the test process for displaying the fault condition messages such as open ground cover open.
• All the user selected programs are chosen through (4x3) key pad and the test results can be easily printed along with test type, date, time, breakdown test voltage, averages and deviations.
• Voltage value can be measured & printed with a resolution of 0.1 KV
• It is possible to have number of printouts for the last test.
• For each test the readings are recorded and stored in memory
• All stored readings can be transferred via the RS 232 interface to PC (Optional)
• A safety interlock prevents access to the high voltage terminals during testing
• A high level of safety for the operator.
• The high voltage chamber is covered by a polycarbonate door.
• Fully automatic micro controller operation
• International standard, reprogrammed.
Tan Delta System
We offer our clients with fully automatic tan delta systems which are dielectric constant, dielectric dissipation factor & resistivity measurement. With the usage of these, it becomes easy to select the different standards.
The salient features are as follow:
• Inbuilt printer facility for test report printing.
• Cycle Measuring Time 25 minutes As per IEC 247
• Custom Mode selection
• Easy to store the data
• PC Compatibility
Microprocessor based Insulation Resistance Tester
We offer our clients with high quality Microprocessor Based Insulation Resistance Tester. These Resistance Tester are manufactured as per the industrial standards by using high graded raw material and various sophisticated machines. We provide them with various accessories such as 10 meter mains lead and 15 meters test leads, Instruction & Operating Manual.
The salient features are as follow:
• Microprocessor Based, Mains cum Internal Rechargeable Battery Operated.
• HV,LV & GUARD terminals
• Polarization Index, Dielectric Absorption Ratio measurement.
• RS232 port to download DATA to PC with windows based Data Management Software.
• Internal discharge of object after test complete.
• Compatible to EMC/EMI environment
Automatic C & Tan Delta Bridge
We offer our clients with high quality automatic C & Tan Delta Bridge used in various industries. We provide our clients with Laptop controlled as well as front panel controlled versions. The use of Laptop & Windows based software makes the system more flexible easy to handle & accurate data can be stored, retrieved and analyzed at site. The salient features and specifications are as follow: • Very flexible & User friendly visual C++ windows based software
• Colored Screen analysis & graphical plotting of Tan d Vs Voltage, Tan d Vs Time Complied IEC 61010, ASTM D999, EMI/EMC-EN-61326, IEC61000-4-3, IEC61000-4-4, IEC61000-4-5, IEC61000- 4-6, IEC61000-4-8, IEC61000-4-11, CE marked
• Automatic Measurement of Capacitance & Tan d as per the test plan by auto balancing
• No need of manual balancing
• Automatic voltage setting through software
• Indication of Leakage current
• Graphical representation of voltage vs Tan d to know the Tan d gradient & data analysis for comparison with old results and manufacturer's data
• Temperature correction as per IEC for Tan d
• Executes all the test modes automatically
• ON site printout with USB printer
• Suitable for extraneous conditions in 400KV switch yard under heavy induction.
• More than 10000 Results Data-storage.
• Optional feature available for line as well as generated frequency operation using generated frequency source with dual frequency operation software
• Optional feature for Leakage Reactance Measurement
• Kit is supplied with Temperature & Humidity Meter
• Automatic Interference Suppression
These are applied for various applications: Condition monitoring insulation tests for power sector equipments such as:
• High Voltage (EHV) class Bushings
• Windings of transformer (1/2/3 windings)
• shunt reactors, Current Transformer
• Capacitor Voltage transformer (CVT),
• Grading capacitors of Circuit Breakers,
• Surge Arrester
Automatic Transformer Ratio Meter
These automatic microprocessor based transformer ratio meter is the on the first automatic ratio meter in the country giving digital display of ratio directly. Our transformer ratio meter requires no balancing while working and also provides with accurate measuring of the voltage transformation ratio of single phase/3-phase delta or star connected transformers, CTs & PTs, power transformers.
• Test voltage: The Instrument provides 3 isolated test voltages of 48V & 4.8V, which enable the testing of both power transformers & Cts
• Display: 4½ digit LCD displays the ratio i.e. ratio of high voltage winding to low voltage winding at low flux in the core displayed in three ranges i.e.1-10,10-100,100 1000,1000-10000 by auto ranging
• Principle of operation: This micro-processor based instrument uses ratio-metric circuit in which the ratio of test specimen is compared with known internal standard
• Protection: The instrument is protected against any wrong connection across the transformer and Fast acting VBO trips in case of stepping up of test voltage
• Keypad & LCD Display: Provided for displaying keyboard selected parameter, error/warning messages like incorrect connection, accidental step up mis connection, low battery for user friendly functioning, etc.
• Fully auto operation
• No balancing is required
• Measures and displays transformer ratio, excitation current, Phase Angle polarity
• Primary Secondary, Continuity or any short circuit
• LCD display
• 4½ digit LED/LCD display of ratio.
• True 4 terminal measurement.
• Resolution of 0.001 in the range 10.
• Can be used to measure 3,1 phase delta, star connected transformer.
• Fully protected against any wrong connections.
• Built in printer (24 column) for on- site printouts
Transformer Winding Resistance Meter
Transformer Winding Resistance Meter is designed to measure the winding resistance of transformers, Inductors, generators and motor windings and Tap Changers. It is specially designed for highly inductive objects like 400KV/220KV. We take care in measuring 3 phase transformers by using band switch matrix, to avoid climbing on transformers for safe & measurements. This is only indigenous TWRM which gives very fast readings for 3Phase Star-Delta any combination Transformers. It is equipped in open circuit Voltage of DC Supply which ensures that core of the transformer is saturated for fast measurements to be taken.
Moreover, utmost care is taken to absorb the Back emf of such transformers and the Indication for discharges is provided on front panel for user safety, if the current through winding under measurement is disturbed/ discontinued. It has a built in 10A regulated and highly stable current source with current election of 10Amp, 1Amp, 0.1Amp & 0.01Amp. Moreover, it uses ratio-metric circuit where the resistance of specimen is compared with known internal standard and 4 ½ digit LED/ LCD display is provided for resistance measurement in milliohms and in ohms.
The salient features are of transformer winding resistance meters are as follows:
• Easy & Fast switching for 3 phase to avoid changing Primary-Secondary, Band switch is provided on front panel.
• Regulated and highly stable 10 Amp, 1Amp,0.1Amp & 0.01Amp current source.
• 4½ digit LED/LCD display
• Simultaneous measurements of voltage & current.
• True four terminal measurement
• Resolution of 0.1 micro ohm
• Protection against inductive kickback and discharge.
• Visual indication for discharge
• Line voltage interference suppression, making instrument most suitable for field applications
• Light weight with carrying case & with 10 meter leads.
• Inbuilt Printer, RS232 port
Million Meghom Meters
These are supplied as per ISI standards to test electronic components such as paper Capacitors, Plastic Capacitors, Ceramic Capacitors, Insulators, Semi Conductors, Switches, Connectors, Transformers and Motors. These testers are equipped with the facility for checking insulation resistance in the range of 1 megohm to 10 million megaohm after one minute of charging. These permit measurements of intrinsic value of insulation resistance if required, even with capacitive loads. Moreover to make is suitable for rapid and safe testing of components in a factory, these are given with separate push button controls and visual indicators for "Charge", and "Discharge" function. We have limited the maximum output current to safe value for eliminating the risk of serious shock to operators. These are available in five models as per specifications ideal for the clients.
The salient features are as per the following:
• Push Button Controls for rapid testing.
• Tests as per I. S. I. recommendations.
• Wide measurements range
• Fully protected against all overload and short circuits.
• Completely solid state circuitry, hence drift free operation.
• Guard Terminal provided.
• Suitable for testing 'EARTHED' Samples.
• Suitable for testing insulation liquids (Resistivity Measurements) with oil cell as per IS : 335
Rotor Test System
The Rotor Test system which is Asia's First automated system for Rotor Testing. These are highly useful for Surge comparison Test, DC Hipot Test, Winding Resistance Test and Insulation Resistance Test. It is equipped with front panel controlled PC with 40GB hard disk, Windows based software is useful for comparison of prestored samples. Statistical data analysis being a very useful tool, it is being provided with USB printer port for printing test report.
Stator Test System
These are designed for sequential automated testing of stator windings. By using stator test system, the clients can perform Surge comparison test, DC Hipot Test, Winding Resistance Test, Resistance unbalance Test, Insulation Resistance Test, Direction of Rotation Test, Dual Test.
The important features are Automatic selection of winding combination through software driven test fixture, Windows based data analysis, statistical data analysis, Test report printing.
Digital Winding Analyser
We provide our clients with Digital Winding Analyzer which is ideal for motor, stator and winding test. Being highly portable, these can be used for surge comparison test, DC Hipot Test, Insulation Resistance Test and Winding Resistance Test. These use the inbuilt front panel controlled PC which makes the equipment highly versatile and easy in use. It is equipped with 40GB Hard-disk which increases the storage capacity to great extent. Moreover, its high-resolution LCD color screen display provides clear picture of waveform in various colors.