Showing results: 16 - 30 of 75 items found.
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GC2010D -
Chongqing Kailian Yongrun Industrial Co.,Ltd.
Transformer uses oil as coolant and insulator. Gases are formed within the transformer oil due to natural aging, faults from oxidation, vaporization, oil breakdown, electrolytic action or insulation decomposition. Because the transformer oil bathes each internal component, dissolved gases in the transformer oil contain lots of diagnostic information. Meanwhile, the transformer is very expensive to be replaced, so monitoring these gases is very important to know the current quality of transformer or even when the transformer should be removed from service before failure. Presence of each gas composition and its concentration indicates possible failure of transformer.
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KT-200 -
Kongter Test & Measurement Co., Limited
KT-200 is a fast, reliable and accurate online transmitter for water activity (aw) in oil and temperature (T). It is very suitable for integration in OEM application with its rugged housing and excellent performance.KT-200 is ideal for online monitoring of moisture in lubrication, hydraulic or insulation oil, which is significant for the long-term performance and preventive maintenance of plant and machinery.
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Excelitas Technologies Corp.
Higher-voltage and Higher-power Supplies require more complex design solutions. The heat to be dissipated and installation infrastructure, plus choice of insulation system in a HVPS are driven by the output voltage and output power which ultimately dictates packaging. Typical insulation systems are based on air, dielectric oil, epoxy, RTV Silicone and even Sulfur Hexafluoride (SF6). The method of cooling is a factor as well, the choices often coming down to air, water or oil, depending on the platform design requirements. These applications require Excelitas' detailed understanding to help choose the best design solution.
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Shimadzu Corp.
It is necessary to analyze outgas in transformer insulation oil in power plant facilities. Shimadzu offers a System GC compliant with ASTM D 3612 Method B (oil stripper sampling) or ASTM D 3612 Method C (headspace sampling). The Nexis GC-2030TOGAS3 system, equipped with a PDHID, enables the analysis of more trace amounts of permanent gas than conventional systems.
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RY1 & SG121 -
Shanghai Jiuzhi Electric Co., Ltd.
This precision test cell measures the dielectric properties of liquid insulants like insulation oil etc.The test cell is designed as a vacuum-sealed cylindrical capacitor with shielded measuring electrode. The cell should be used with SG121 when heating.
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NOVOTEST SPARK-1 -
NovoTest
Pulse Holiday Detector NOVOTEST SPARK-1 designed to detect pits, flaws, and holes in different non-metallic insulation coatings (such as polymers, epoxy, bitumen, etc.) and is mostly used for oil and gas metal pipelines and other objects. The device can be used while the pipeline construction, operation or service. Tested coating thickness is up to 12 mm. Such tests are needed to evaluate the oil and gas pipelines corrosion protection reliability.
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GTB Series -
Wuhan Sangao Electrical Test Installations Limit Co.
GTB series dry testing transformer is adopted with new technology of winding epoxy vacuum pouring and CD type Iron core. Compared with similar product of oil immersed type transformer, it is light weight, smaller size, insulation strength and moisture-resistant is more improved.
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Wuhan Sangao Electrical Test Installations Limit Co.
GTB series dry testing transformer is adopted with new technology of winding epoxy vacuum pouring and CD type Iron core. Compared with similar product of oil immersed type transformer, it is light weight, smaller size, insulation strength and moisture-resistant is more improved.
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OTS-A series -
The Motwane Manufacturing Company
OTS-A series is fully automatic microprocessor based transformer oil test set designed with advanced features to measure breakdown voltage of insulation oil accurately. The OTS-A Series preprogrammed with worldwide acceptable standards.The user can define customized standards. The large LCD display with menbrane key pad for easy operation. It is provided with internal memory for 100 data storage & built-in thermal printer for onsite report. The kit is protected by automatic detection of poor input ground.The acrylic oil test vessel provided with adjustable electrode gap setting. The voltage calibrator for on site calibration saves cost & time of user.
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NEO TELE-TRONIX PVT. LTD
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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B-1020-C -
ROSS ENGINEERING CORPORATION
These supply 120V or 240V AC continuous power for equipment that must operate while at a high voltage to ground or power source. For example, a fiber optic transmitter at the HV level for waveforms to be received and measured or recorded by grounded instrumentation might be powered by an isolation transformer secondary to primary either insulated by potting, oil or air. The low dielectric constant of air insulation provides lower capacitive coupling between the secondary and the primary or ground than would solid or oil insulation. The lower capacitance provides better isolation both at line frequency and especially at high frequency voltages such as lightning or switching transients.
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doblePRIME Delphi -
Doble Engineering
The doblePRIME Delphi is a dissolved gas analysis (DGA) monitor that helps you track transformer health by providing early warning signs of problems such as overheating, insulation degradation or mechanical movement within the transformer.The doblePRIME Delphi provides this valuable information in real time, second by second, through analysis of the insulating oil.
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Megger Group Ltd.
The primary test methods used to assess the condition of the active insulation components in transformers and bushings, on site, include:1) power factor/tan δ,2) variable frequency power factor/tan δ (1 - 500 Hz)3) dielectric frequency response (DFR) [a dielectric response method], and4) moisture in oil measurements (for transformers).
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B-1002 -
Ruetz Technologies GmbH
Ross High Current Switches are available up to 36,000 amps continuous and over 1,700,000 amps 20µsec RC pulse, with voltage ratings of 6 volts to 400kV peak test. Standard Ross high current switches are built with 80 to 120psi air cylinder actuators. Air cylinder or motor operated for high contact force. Arcing contacts optional for closing current. G-10 epoxy glass laminate is standard insulation on most models. G-7 silicone glass is used on models available for RF applications above 100kHz. Most Ross high current switches are available with additional lengths of insulation, where the high voltage contacts need to be spaced at a greater distance from the actuator and control circuit. Voltage withstand value is at least doubled and the interrupt capability is much greater when high current switches are immersed in insulating oil, fluid or SF6 gas. For gas atmosphere, no modifications are necessary; however, oil or fluid immersion requires modification at a slight extra cost.
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B-1002 -
ROSS ENGINEERING CORPORATION
Ross High Current Switches are available up to 36,000 amps continuous and over 1,700,000 amps 20µsec RC pulse, with voltage ratings of 6 volts to 400kV peak test. Standard Ross high current switches are built with 80 to 120psi air cylinder actuators. Air cylinder or motor operated for high contact force. Arcing contacts optional for closing current. G-10 epoxy glass laminate is standard insulation on most models. G-7 silicone glass is used on models available for RF applications above 100kHz. Most Ross high current switches are available with additional lengths of insulation, where the high voltage contacts need to be spaced at a greater distance from the actuator and control circuit. Voltage withstand value is at least doubled and the interrupt capability is much greater when high current switches are immersed in insulating oil, fluid or SF6 gas. For gas atmosphere, no modifications are necessary; however, oil or fluid immersion requires modification at a slight extra cost.
