Tan Delta
test's dielectric loss to determine quality of insulator.
See Also: Tan Delta Bridges, Dissipation Factor, Dielectric Test, Oil
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Tan Delta Measurement
TD Series
While partial discharge measurement is suitable for detecting electrical trees, tangent delta measurement – also referred to as dissipation factor measurement – detects water trees which have formed in the insulation of the device under test.
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Oil Tan Delta Tester
OTD
The Oil Tan Delta (OTD) is a laboratory instrument, which measures the Tan Delta, Resistivity and Relative Permittivity of insulating liquids. These tests give a wider picture of the overall quality of the insulating oil, and will indicate if there is any contamination. Megger has developed features of the OTD to ensure that productivity levels within laboratories are maximised. The microprocessor controlled inductive heater means that there is uniformity of temperature throughout the cell, in compliance with IEC 60247, and for cooling a fan effectively speeds up the cell cooling time. The instrument has a temperature measuring range of 10 to 110 C, with an accuracy of 1 C. It can be set to preheat before testing takes place. The automated oil drain facility negates the need to move the oil vessel. User safety is paramount and with this in mind, Megger have designed independent and dual redundant high voltage cut-off circuitry. If for any reason the user needs to abort the test, this can be done so by pressing any key, immediately terminating the test and removing the high voltage. The design of the cell components maximise oil fill rate but minimise turbulence in oil flow and eliminate trapping of air. With only 32 cell components, it is easy to assemble and disassemble.
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Oil Tan Delta Tester
Weshine Electric Manufacturing Co., Ltd
The Oil Tan Delta Tester (OTD) is a laboratory instrument, which measures the Tan Delta, Resistivity and Relative Permittivity of insulating liquids. These tests give a wider picture of the overall quality of the insulating oil, and will indicate if there is any contamination. WESHINE has developed features of the OTD to ensure that productivity levels within laboratories are maximised.
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Tan Delta And Capacitance Test Set
TDX 5000
TDX 5000 is developed as a compact solution for high voltage Capacitance and Tan Delta (Dissipation Factor) measurements. Using the reactor option, TDX 5000 can also perform tests on rotating machines.
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Capacitance And Tan Delta Test Set
*DIGITAL DISPLAY for Capacitance and Tan Delta*NO NEED of calculation*SAVING OF Result and INTERACTIVE DOWNLOAD*SOFTWARE*High Resolution for Tan Delta -5 0.00001 (10 ) measurements*Easy to use*Safety Protections incorporated
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Oil Resistivity & Tan Delta Test Set-Up
This testing set is an automated instrument, widely used for measuring electrical characteristics of insulating liquids, transformer oil and other insulating material samples.
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GDGS Transformer Power Factor And Tan Delta Tester
Chongqing Gold Mechanical & Electrical Equipment Co.,Ltd
GDGS Transformer Power Factor and Tan Delta Tester
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Automatic Dielectric Constant Tan Delta And Resistivity
No Balancing and Calculation required to calculate Volume / Surface Resistivityand Dielectric Constant.Complies IEC 60250, IS 4487, Test jig Conform to ASTMD 257Built in Thermal PrinterSerial port RS232 for data downloading.Can be used to check liquid sample with Three Terminal oil cell.Storage 100 Test reports
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Capacitance And Tan Delta Test
Bushing Tap Adapter Kit
Bushing Tap Adapter Kit is designed to perform Capacitance and Tan Delta tests on power transformer bushings The kit can b e used with the following ISA Test Set STS 5000 TD 5000 STS 4000 TD 5000 TDX 5000.
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Tan Delta Test System
Diagnostic test that indicates the degree of cable insulation degradation. Rather than using only a VLF instrument to perform a go/no-go proof test, the Tan Delta, used in conjunction with a VLF hipot, permits the user to grade the deterioration level of many cables in order to prioritize replacement, rejuvenation, or to determine what additional tests may be useful.
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Tan Delta Tester
HTJS-V / 270
Wuhan Huatian Electric Power Automation Co., Ltd.
Measurement high-precision instrument of dielectric loss tangent value and capacitance of high-voltage power equipment of power plant, substation and other scene automatic measurement.
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Oil Tan Delta Test Set
The Oil Tan Delta (OTD) is a laboratory instrument, which measures the Tan Delta, Resistivity and Relative Permittivity of insulating liquids. These tests give a wider picture of the overall quality of the insulating oil, and will indicate if there is any contamination. Megger has developed features of the OTD to ensure that productivity levels within laboratories are maximised. OTD test sets are supplied with sixteen standard test sequences pre-installed, to support a set of international standards.
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Tan Delta Test System
Precision measuring bridge is designed for determining the capacitance and dielectric dissipation factor of liquid and solid insulants, cables, capacitors, line transformers, generators, motors, bushings etc. Furthermore it can also be used for power loss measurement on shunt reactors or similar apparatus. This system is suitable for both low and high voltage measurement at line frequency. Measurement reports can be printed. This measuring equipment has been specially developed to maximise efficiency in production and quality control environments. Its outstanding accuracy also makes it suitable for laboratory and research applications.
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12 Kv Fully Automatic Capacitance Tan Delta Tester With Printer
NMC offer Fully Automatic Capacitance Tan Delta Test Set with Printer and Computer Interface, Range : 0-12kV, Model : CTD-12.
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Compensating Reactor
RCTD
This module is properly designed for testing Tan Delta in rotating machines with TD 5000 and allows increasing the test current and getting the maximum test voltage with high capacitive burdens
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Capacitance & Tan-Delta Test System
TD-1
By measuring the electrical properties such as capacitance and Tan-Delta regularly on periodical basis, it is possible to ensure the operational unexpected breakdown. Dissipation factor (Tan Delta) is one of the most powerful off-line nondestructive diagnostic tool to monitor the condition of solid insulation of various high voltage equipment.
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Cable Test Van
ETL-35
ETL-35 is a cable test van designed for testing electrical substation equipment.Apart from cable insulation withstand testing with DC (rectified) voltage up to 60 kV and ability to measure very small leakage currents, the system can be used for testing various objects with small electrical capacitance with AC voltage of up to 100 kV and measuring dielectric dissipation factor (Tan Delta) at industrial frequency.
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Partial Discharge and Tan Delta
PDIX Series
PDIX is a combined partial discharge and tan delta cable diagnostic testing system. By combining HVI’s VLF products with PDIX products, users can perform VLF AC withstand, partial discharge detection, and tan delta measurement on medium and high voltage cables, rotating machinery, and other apparatus with one integrated package fully supported by HVI & PDIX.
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Conventional Power Supply Design with Simple Analog Controls
VLF Series
VLF hipots perform voltage withstand tests and provide the voltage source for diagnostic cable testing. There is no better method for verifying the AC integrity of a cable than applying VLF AC voltage. Tan delta and partial discharge measurement accessories are frequently purchased along with VLF equipment to extend their capabilities.
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Cable Test Van
ETL-35K
ETL-35K system has a multitude of applications in electrical equipment testing and maintenance: testing cable insulation with DC (rectified) voltage up to 60 kV, measuring small leakage current of surge arrestors, high-voltage testing with AC voltage up to 100 kV at industrial frequency, underground utilities tracing, cable fault pre-location and pinpointing, and measuring capacitance and tan delta of various electrical objects at industrial frequency.
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VLF Diagnostics System
PHG 70 TD
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR PHG 70 TD. The combination of the PHG 70 programmable test generator with the BAUR dissipation factor measurement system produces the cable testing and diagnostics system PHG TD. It is operated via PC control. Dissipation factor measurement and diagnostic testing sequences can be programmed in the menu, after which the dissipation factor measured values are automatically determined in various voltage steps and a final evaluation is conducted.* Biggest dynamic range of tan delta measured values from 1 to 10-4 with a cable capacitance >10 nF to 20 uF* High resolution +/- 1x10-5 applicable even in new PE/XLPE cables* Insensitive against interferences due to complete mains separation* Lowest time required for assessing a medium-voltage cable (3-phase approx. 1 hour)
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Test Sets For Diagnostic Testing
Test Sets For Diagnostic Testing are designed to test Oil Resistivity, Tan Delta, High Voltage Surge Comparison, etc. These test sets are automated instruments used to measure electrical features to insulate transformer oil, liquids and varied other insulating materials. They are ideal for revealing different localized problems and varied weak spots in the insulation. These modern testing sets are designed to provide high accuracy in results. In addition to this, they are easy to maintain testing sets available to ensure accurate readings.
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CAPACITANCE & TAN-DELTA TEST SET FOR HV EQUIPMENT
International Biological Laboratories
Capacitance & Tan-Delta Measuring Equipment along with its accessories is suitable for testing motors, Power Transformers, H.V. Bushings, Generators, Power Capacitors, cables etc. at power frequency.
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VLF Testing and Diagnostics Unit
Frida TD
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR frida TD. The portable and high performance high-voltage testing and diagnostics device is available in two different configurations: frida: Used for cable and cable sheath testing of medium-voltage cables and electrical equipment up to 20 kV. Another function is insulation testing on electrical equipment.frida TD: Expands the functional scope of frida with the tan delta diagnostics and Monitored Withstand Test (MWT) that combines the cable testing and dissipation factor measurement. This allows for an accurate and comprehensive assessment of the cable condition.* Cable testing and dissipation factor diagnostics in one device* Easy and quick test setup* Automatic testing and diagnostic sequences* Compact dimensions and lightweight
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VLF Diagnostics System
PHG 80 TD
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR PHG 80 TD. The combination of the PHG 80 programmable test generator with the BAUR dissipation factor measurement system produces the cable testing and diagnostics system PHG TD. It is operated via PC control. Dissipation factor measurement and diagnostic testing sequences can be programmed in the menu, after which the dissipation factor measured values are automatically determined in various voltage steps and a final evaluation is conducted.* Biggest dynamic range of tan delta measured values from 1 to 10-4 with a cable capacitance >10 nF to 20 uF* High resolution +/- 1x10-5 applicable even in new PE/XLPE cables* Insensitive against interferences due to complete mains separation* Lowest time required for assessing a medium-voltage cable (3-phase approx. 1 hour)
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Substation Equipment Test Van
ETL-250
Apart from insulation withstand testing with DC (rectified) voltage up to 60 kV and ability to measure very small leakage currents, the system can be used for testing various objects with small electrical capacitance with AC voltage of up to 250 kV and measuring dielectric dissipation factor (Tan Delta) at industrial frequency.
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Portable High-Voltage VLF Test System
VLF-60
The system is designed for VLF (0.1 Hz) withstand testing of cross-linked polyethylene (XLPE) insulated cables.Integrated Tan Delta (tan δ) measurement module allows to evaluate the general condition of cable insulation according to IEEE 400.2-2013 international standard.
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Tan Delta Test Set
TD 5000
The high-voltage generator TD 5000 is a complementary module of STS serie. TD 5000 designed to perform Tan Delta measurements, dissipation factor and capacitance of transformer and bushing at the frequency of the mains or in a wide frequency range.
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Fully Programmable Digital Design with Wireless Remote Control
VLF E Series
The VLF E Series uses a state-of-the-art, switching power supply design with wireless computer controls. Equipped with HVI’s E-Link software, the E Series stands among the most advanced cable testing systems available. Our customers praise its flexible data capture and reporting capabilities, full remote operation via XBee wireless technology, and seamless tan delta testing with HVI’s TD units.
