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Supplier: Tradeport Electronics Group
Description: satisfy and exceed the requirements in IEC 61000-4-5 standard. The simulators consist of a combination wave generator applying a 1.2/50 open-circuit voltage wave in a high impedance test piece and delivering an 8/20 short-circuit current wave in a low impedance test piece, CCITT
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Supplier: Tradeport Electronics Group
Description: satisfy and exceed the requirements in IEC 61000-4-5 standard. The simulators consist of a combination wave generator applying a 1.2/50 open-circuit voltage wave in a high impedance test piece and delivering an 8/20 short-circuit current wave in a low impedance test piece, CCITT
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Supplier: Microtest Corporation
Description: 623x series + 7721+6905 (transformer tester+Impulse/Surge tester+Hipot tester) 3 in 1 comprehensive transformer testing system, the one-stop comprehensive transformer testing system is the only product adopted by major Japanese manufacturers. 6235 Basic
- Form Factor: Stand Alone / Bench
- Test Frequency Range: 1 MHz
- Test Parameters: Capacitance, Impedance Phase Angle, Inductance, Quality Factor, Turn Ratio
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Supplier: ValueTronics International, Inc.
Description: The TS-568 is EMI equipment from Com-Power. Additional Features: Meets Part 68 requirements SG-168 Surge Generator LB-168 Longitudinal Signal Power and Balance IS-268 Impedance Test Set RS-368 Ringer Set DB-568 Digital
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Jabbals 02 - Armature
Ground Impedance kV Surge Testers .
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Conversion of centrifugal chillers to alternate refrigerants
The surge tester compares the impedance of these windings to detect faults.
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Techniques for improved predictive maintenance testing of industrial power systems
The surge com- parison tester uses the principle of impedance balance to test motor windings.
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Horizontal strip electrodes for lowering impedance to ground
Also, for most counterpoises (those that are not short ones, as defined later), the DC resistance measured by an earth tester is appreciably less than the surge impedance to lightning surges.
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Standard Handbook of Broadcast Engineering > Tower Grounding
The surge impedance , measured by a dynamic ground tester , should be 25 Ω or less.
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Automated monitoring of airgap eccentricity for inverterfed induction motors under standstill conditions
In [8], the motor is manually rotated as in [5]-[6], and excited using a surge tester to observe the change in the impedance to detect eccentricity.
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Electrical Equipment Handbook: Troubleshooting and Maintenance > GENERATOR SURVEILLANCE AND TESTING
The impedances of two matching sections of the winding are compared by commercial surge testers .
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Why a low resistance to remote Earth is desirable and how to obtain it
To optimize the surge-handling performance, an electrode should have a low surge impedance and should quickly transition to a low leakage resistance (what is measured with an earth tester ).
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IEEE Recommended Practice for Grounding of Industrial and Commercial Power Systems - Redline
… and casters, 131 grounding and bonding, 128–129 humidity, 129 ionization, 130 proper maintenance, 132 special precautions, 131 neon lamp tester , 126 solid-state electrometer … … Switching centers, 110 Switching surge , definition of, 4 System … … general, 75 neutral, 5 impedance grounding, 5 solid grounding …
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IEEE Standard Specifications for Surge Protectors Used in Low-Voltage Data, Communications,and Signaling Circuits
Measure the BER with and without the surge protector in the test circuit for the duration selected … The send and receive impedances of the BER testers shall be equal to the characteristic impedance of the application.