Showing results: 151 - 154 of 154 items found.
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WA1401 -
Wuhan Sangao Electrical Test Installations Limit Co.
Isolation switch is the high voltage switch equipment, it was large and frequently use in power system . The outdoor isolating switch is the only completely exposed in the atmospheric environment electrical equipment, It is also a electrical equipment affected by climatic conditions influence the most direct and most serious. The operating conditions is relatively poor, It is easy to generate fault of mechanical or electrical. Especially the finger contact part is easy to be affected by rain, dust and harmful gas invasion, resulting in poor contact caused fever, provide the spring with contact pressure due to heating and annealing for reducing the pressure, so that more cause finger heat form vicious spiral eventually burn out finger accident. In maintenance often only pay attention to replace the obvious failure and fracture of spring, but spring to reduce the pressure can not judge and replacement, so again in the operation, each finger current distribution by the pressure difference, The greater the difference between the current distribution is not uniform, long-term operation will occur is bad and the overheating. Fever finger will be vicious spiral, a finger contact bad will spread over the entire bad contact. At the same time, there are a lot of isolating switch contact pressure can be adjusted, if in maintenance adjustment pressure is not enough or each finger to adjust the pressure difference will also appear afore-mentioned phenomena.
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MEXA-ONE-QL-NX -
HORIBA, Ltd.
The MEXA-ONE-QL-NX is an analyzer for the direct, simultaneous real-time measurement of the four relevant nitrogen-containing exhaust gas components NO, NO2, N2O and NH3.The analyzer combines a light source based on the new quantum cascade technology (efficient lasers in the mid-infrared spectral region) with a precisely adjusted dual path cell to measure low concentrations with maximum sensitivity. The detection limit complies with current European legal requirements.Furthermore, the MEXA-ONE-QL-NX offers wide measuring ranges of up to 5000 ppm (for NO). By using extremely narrowband light sources and measuring under reduced pressure the cross-sensitivity to other exhaust gas components can be drastically minimized.The complete measuring system - including filtration - is specifically developed for the measurement of NH3 and thus guarantees a very fast NH3 rise time (T10-T90) of less than 5 seconds. The MEXA-ONE-QL-NX can be operated as a stand-alone analyzer or integrated into the MEXA-ONE software interface for user-friendly and simplified system operation.
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Hill Engineering, LLC
Fatigue engineering is subject to uncertainty, and data from well executed tests are used to validate conclusions made by analysis and to provide a basis for structural certification. Our staff have extensive experience in testing materials and components under slowly varying, static loads, and under rapidly varying cyclic loads. Tests under static loads are used to assess material properties or to assess the load-deformation behavior of structural components. Tests under cyclic loads provide time to crack initiation, time to failure, or measurements of crack growth over time. We have extensive experience in measuring fatigue crack growth behavior in metallic materials. Past programs have measured crack growth with microscopy and photogrammetry at the surface, cracked area with direct current potential drop, and through-thickness crack profiles with quantitative fractography. By assessing crack growth with a variety of experimental methods, we enable robust analysis validation for cases of complex cracking. Our capabilities in fatigue engineering allow for careful design of a fatigue test program. Whether the tests use constant amplitude loading or an irregular loading spectrum, we specialize in engineering the test that meet your needs. Much of our experience is in non-standard test programs, which require engineering to optimize the test setup. Few others match our capability and experience in fatigue test engineering.
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STB Electrical Test Equipment, Inc
STB unit replaces 3 separate units manufactured by competitors - line phasing, capacitance phasing and line to ground Versatile, lightweight and easy to useEach portable meter has a single rangeMeter usage: Voltage detection and phasing at capacitance test points or voltage detection and phasing on bare energized conductors (overhead & underground)Probes can be separated to be used as a voltage sensor or capacitance sensorFive position selector switch used to select voltage sensing on capacitance tap or direct line and phasing on capacitance tap, direct line or a battery test positionNo exposed conducting terminals or meter circuitryLocking cable connector provides positive contactScale is large enough to be easily read 8'-10' when mounted on a suitable hot stickLine to ground voltage readings are accurate within 3% at full scaleMaximum operating temperature range -20°F to 165°F (-30°C to 75°C)25' coiled cable includedAccessoriesMODELDESCRIPTION50118-G-10Hot Sticks (full set - 6)10104-P-02Shepherd's Hook10104-P-03Probe Tip30142-P-01Shot Gun Adapter50111-P-01Regular Bushing Adapter10275-P-01Universal AdapterModelsMODELDESCRIPTIONWeight50101-G-07Phasing Voltmeter 9-36kV16 lbs.50101-G-08Phasing Voltmeter 9-36kV with Hot Sticks (full set - 6)21 lbs.Request QuoteOperating Instructions9-36kV Phasing VoltmeterProduct Summary/OptionsProvides safe and convenient testing means for paralleling 3-phase high voltage circuitsConsists of two resistance elements connected in series with an indicating meter in the series connectionTwo ranges, 9kV and 36kV, with a range selector switch mounted on the back of the meter housingSwitch is clearly marked for the range of the voltmeterTypical use: Line-to-ground voltage measurements and phase for paralelling operationsScale markings on the voltmeter have a minimum of divisions and the figures are large enough to be easily read 8'-10' away when mounted on a suitable hot stickInput impedance: Approximately 72 megohmsMaximum operating temperature range -20°F to 165°F (-30°C to 75°C)Ready to attach on hot stick10' cable, a proof tester, battery and shepherd’s hook and probe tip includedOperating InstructionsRequest QuoteOperating InstructionsModelsMODELDESCRIPTION50100-G-010-2kV DC Voltmeter 30’ cable, magnetic track adapter50100-G-020-1500kV DC Voltage Meter50100-G-030-1500kV DC Voltage Meter with Hot Sticks50100-G-04DC Voltmeter 1500kV DC w/Extension Probe and Ground Lead50100-G-050-1500V DC with Hot Sticks and Lighted Dial50100-G-060-1500 DC Voltage Meter with Lighted DialDC VoltmeterProduct Summary/OptionsLightweight, easy to use, hand-held meterHard wired unit Scaled 0-1500vDC, in 100 volt incrementsProvides a 2/3 full scale deflection when applied across 1000vDCMaximum current flow through instrument at 1000vDC is 0.05 milliampersNo polarity, sensitivity issuesMay be used to determine whether the third rail of a transit system is energizedInput impedance of approximately 24 megohmMaximum operating temperature range -20°F to 165°F (-30° C to 75°C) Request QuoteAC VoltmeterProduct Summary/OptionsTwo-position toggle switchPortable instrument for quickly and easily measuring AC voltages Locking cable connector provides positive, electrical contactResistive voltmeter - medium range voltage measurements in the fieldTypical use - measure voltage between ground and the line or bus connector20' ground lead includedInput impedance - approximately 36 meghomsMaximum operating temperature rangeAccuracy of +/- 3% full scaleShare to TwitterShare to FacebookShare to PrintShare to EmailMore AddThis Share options
