KVTEK POWER SYSTEMS PVT. LTD.

Manesar, Haryana

IDE series are externally damped impulse voltage capacitive dividers and can be used to measure full and tail chopped lightning impulses as well as switching impulses at voltage levels up to 1MV. This voltage divider serves simultaneously as a load capacitor for the impulse generator. With suitable secondary arm it can also be used for AC voltage measurements.

IDI series are internally damped capacitive impulse voltage dividers and can be used to measure full and tail chopped lightning impulses as well as switching impulses up to the highest voltage levels. This voltage divider serves simultaneously as a load capacitor for the impulse generator. With suitable secondary arm it can also be used for AC voltage measurements.

RIC-500 Recurrent Impulse Generator is a low voltage equivalent of High Voltage Impulse Generator. Its wide range of applications includes the testing of models, the study of voltage distribution in high voltage windings during impulse voltage stresses and predetermination of the circuit parameters of impulse test plants. Tests can be performed quickly and reliably without endangering personnel. All impulse circuit elements and therefore, all impulse forms may be varied within broad limits. Voltage impulse may be observed and evaluated on any oscilloscope as a standing image.

The unit is especially suitable for:

• Investigating the impulse voltage distribution in winding models of machines, transformers, reactors and instrument transformers.
• Predetermining impulse circuit data, for instance the value of the front resistance of an impulse generator, which can be performed by connecting the actual test object.
• Non-destructive testing of windings in dry state and under various impulse voltage conditions.
• Insulation fault localization in windings.
• Investigating transfer characteristics of measuring system.
• Transient wave measurement in cables and models.
• Training and experimentation in laboratories of technical colleges and electro-technical institutes.

All impulse circuit components are adjustable. The impulse shape can thus be fine-tuned within a wide range. Additional capacitors and resistors can be connected externally to permit operation with larger impulse capacitances and other resistance values. The peak value of the impulse voltage is established and continuously adjustable. The voltage impulse may be chopped internally within broad limits.

Mobile test laboratory is to measure ratio and phase angle errors of installed instrument transformers comprising of; current transformers, potential transformers and capacitive voltage transformers. This measurement when combined with the accuracy measurement of energy meters can help in determining the actual energy transmitted. It is important to make the accuracy measurement of the complete measuring arm for determining the quantum of actual energy transmitted. It has been observed that nearly 15% of the installed instrument transformers do not meet thespecified accuracy levels thus energy metering in itself is defaulted causing huge revenue loss for theconcerned utilities.

SFC is especially designed for testing HV-devices, like MV-cables, bushings, all type of transformers and more; can replace motor-generator set. Therefore higher power is available and precise and short measurement periods are possible. A high efficient control reduces significant the normal high frequency distortions produced by fast switching semiconductors. Also available as mobile measurement system. SFC allows high power quality, precise measurement and short testing time.

The traditional method with Motor Generator Sets to test HV-devices means a lot of maintenance and installation work for the customer. Where once several MG-Sets were used, only one SFC is necessary for all IEC-standard tests.

Today testing requires more and more power what increases the cost of MG-Sets. The occurring high frequency distortion of fast switching semiconductors can be avoided by using special filter technologies.

Features:

• Frequency selectable measurements (independly from each other)
• Power range from 20 kVA up to 10 MVA
• High frequency noise reduction using special filter- and PWM-technology
• Harmonic current injection to test special transformers which are loaded with harmonics
• Tests according IEC/ANSI for dry and oil transformers from 250 kVA up to 400 MVA
• AC source for applied HV-tests
• Special filtering and modulation
• Remote diagnostics via Internet possible with LAN-interface on PC / Laptop
• All safety functions and supervisions of hardware are integrated

WV seriesComputerized control system is specifically designed for the needs of HV impulse testing. The system is running a Windows based operating software package. Safety systems are properly implemented into the system as independent external emergency switches, software alarms, closed loop feedbacks and status information for fast understanding. Control system can be used in fully automatic mode, semi automatic mode and also manual mode

The SF6 Gas insulated Standard Capacitors comes with very low inherent

Tan Delta in the order of 1x10-5 is used as Capacitance standard in measuring bridge circuits to measure the dielectric Tan Delta of all types including Cables, Capacitors, Bushings, Instrument and Power Transformers. The SC series Standard Capacitors can also be used as the high voltage section of a Capacitive Divider. This allows high accurate voltage measurements e.g. Such as those required for loss measurement on Power Transformer.

Voltage Test System is a sophisticated design used to generate impulse voltages from 1400 KV to 6000 KV simulating lightning impulses and switching surges with energies up to 900 KJ and considers all requirements of industry, research & development centers, educational institutes and third party test labs.

The Model#IT-21 computerized Instrument transformer test set is fully automatic and user friendly instrument for fast, accurate measurement of instrument transformer (CT/PT/CVT) errors. It is designed for use in laboratories, manufacturing processes and quality control procedures. Present increasingly severe quality control requirements call for a higher degree of operating comfort and absolute reliability of the measuring equipment employed. Based on the latest design technology this instrument sets new standards of quality, reliability, convenient operation and simple maintenance. Its measurement ranges for current/voltage errors, phase errors and current/ voltage excitation are fully up to International standard requirements

Features:

• Fully automatic suitable for all measurements at line/other frequencies.
• Digital Instrument transformer test set does eliminates the need of bridge balancing which is an old technique and is no longer required with modern digital instruments.
• Provides protection against high voltage surges that may incur on failure of test object and stray electrical fields.
• Wide dynamic range allows measurement of CT's, PT's and CVT's of different primary and secondary ratings.
• 24 bit, 50 kS/s data acquisition system to read input signals with extreme accuracy.
• Wide Dynamic range also allows compatibility with different ratios between test and standard instrument transformers.
• Allows measurements in a matter of seconds with dynamic averaging of 100 samples

RIG-500 Recurrent Impulse Generator is a low voltage equivalent of a high voltage impulse generator. Its wide range of applications includes the testing of models, the study of voltage distribution in high voltage windings during impulse voltage stresses and the predetermination of the circuit parameters of impulse test plants. Tests can be performed quickly and reliably without endangering personnel. All impulse circuit elements and, therefore, all impulse forms may be varied within broad limits.

Q30 Precision Capacitance & Tan Delta measuring test system is designed for the measurement of very low dielectric losses and impedances (Dissipation factor and Power Factor) of high voltage equipment, liquid and solid insulation. The instrument works on the principle of a combined bridge-vector meter and is capable o analysing capacitive and inductive loads.

The graphical user interface of Q30 is highly intuitive and focussed on the convenience of operator. Advanced software functionalities such as analysis of test result, comparison of parameters and report generation makes it an advanced diagnostic instrument.

The powerful Q30 software efficiently performs test at desired voltage level and records all relevant parameters, which are user selectable. Important information related to the device under test can be feeded into Q30 for analysis and report generation.

Applications :

• Power Cables and Accessories
• Capacitors
• Liquid & Solid Insulations
• Bushings
• Shunt Reactors
• Power Transformers
• Instrument Transformers
• Switchgears

Features:

• All relevant values can be recorded : Capacitance and inductance, dissipation factor Tan Delta, Power factor, cos , equivalent series/ parallel impedance, power current and voltage, frequency, test connection mode and all settings.
• Advanced analyzing software with FFT curves.
• Wide application range.
• Two measuring channels (Cn & Cx)
• Easy and user friendly GUI.
• Report generation and customization.
• Logo updating features etc.

High Voltage Filters are used in many of the PD test systems. They allow for a PD free constant connection in the high voltage circuit and can be used as the interface between the circuit under test and the PD detectors. Conducted interfering signals caused by the power supply are often damped only insufficiently by using a single-stage filter. The damping of these interfering signals can be improved if single-stage filters are enlarged by an additional stage to two-stage filters.

TO Series oil insulated cable test terminations are used for AC testing as well as for partial discharge and tan delta measurement. Their main characteristic include easy handling, short cable preparation times and very short setup times, this is of great importance in routine test application .
The cable end can be away prepared from the test laboratory and the cables can be easily installed in the termination. KVTEK offers test termination up a rated voltage of 150 KV.

IC-500 Impulse calibrator monitor and calibrate impulse measuring systems by generating all key impulse waveform according to IEC 1083-1 & IEC60-2.
All range of measuring system cab be calibrate with the wide output voltage range.

C Series Coupling Capacitors consist of one or more modular units rated up to 1600kV AC.

Features:

• Special design provides a base load for High Voltage Ac Resonant Test Systems.
• Allows separation of PD signal from High Voltage when used with impedance matching unit.
• Allows measurement of AC Voltages at power frequency with an accuracy of 1%.
• Base Frame is fitted with castors for mobility.
• Supplied complete with Corona Spinning.