IEC 60664-1 Clause 6.2.2.1 Impulse Voltage Generator 20KV
High-Voltage Impulse
Product Information:
The Impulse Test Generator conforms to the standard requirements of
IEC 60664-1 clause 6.2.2.1, etc.
It is used to verify that the appliances shall withstand the
transient over-voltages to which they may be subjected. The impulse
voltage test is a destructive test in which a breakdown occurs if
the test specimen cannot withstand the applied voltage. When the
sample breaks down, sparks and discharge sounds will be generated.
The peak voltage of the instrument will drop significantly (close
to zero) when it is no-load. When the same voltage is applied
again, the above phenomenon will occur.
Feature:
An impulse voltage generator, also known as a lightning impulse
generator or high-voltage impulse generator, is a specialized
electrical testing device used to generate high-voltage impulses
that simulate lightning strikes or other transient voltage
phenomena. It is commonly used in electrical power systems,
insulation testing, and research laboratories to assess the
performance and withstand capability of electrical equipment and
insulation materials under high-voltage impulses.
Key components and features of a typical impulse voltage generator
include:
Charging System: The generator includes a high-voltage charging
system that accumulates electrical energy from an external power
source. This system typically consists of transformers, capacitors,
and a charging circuit to store the required energy for generating
the impulse voltage.
Impulse Voltage Generation Circuit: The generator employs a
specialized circuit that rapidly discharges the stored energy to
produce high-voltage impulses. This circuit may include switches,
spark gaps, and resistors to control the discharge process and
shape the impulse waveform.
Voltage Divider: A voltage divider is integrated into the generator
to measure the generated impulse voltage accurately. The voltage
divider consists of resistors and capacitors connected in a
specific configuration to attenuate the high voltage and provide a
representative voltage measurement for analysis.
Impulse Voltage Output Terminals: The generator is equipped with
output terminals where the high-voltage impulses are applied to the
test object or insulation material under evaluation. These
terminals are designed to handle the high voltages and provide a
safe and controlled connection to the test setup.
Control and Monitoring System: The generator features a control
panel or system that allows operators to set and adjust the impulse
parameters, such as voltage level, rise time, and duration. It may
also include monitoring instruments to display and record the
generated impulse waveform and provide real-time measurements.
Safety Features: Impulse voltage generators incorporate various
safety features to protect both the operator and the equipment
being tested. These features may include grounding systems,
interlocks, and insulation barriers to prevent electrical accidents
and ensure safe operation.
Impulse voltage generators are used to simulate high-voltage
transients, such as lightning strikes, switching surges, or voltage
spikes, which can occur in electrical systems. They are employed to
test and evaluate the insulation strength, withstand capability,
and reliability of electrical components, cables, transformers,
surge arrestors, insulators, and other equipment.
When operating an impulse voltage generator, it is crucial to
follow safety protocols and guidelines provided by the
manufacturer. Proper grounding, personal protective equipment, and
adherence to testing standards, such as IEC or IEEE, are essential
to ensure accurate and safe testing procedures.
Technical Parameters:
| Model | SN1104-20KV |
| DC high voltage | 20kV (Max) ±5％ |
| Impulse voltage wave | Impulse wavefront time: 1.2 µs ± 30 %; Half value of after wave time: 50 µs ± 20 % Please note that the waveform should be checked on an external
oscilloscope |
| Instrument internal resistance | 2Ω ± 10%, 12Ω ± 10% and 500Ω± 10% |
Peak voltage | 300V-20kV, Low: 300 V~ 2,500V; High: 2,500 V~ 20kV |
| Impact interval time | 10~ 99s can be preset |
| Impact cycles | 1 ~ 9999 |
| Polarity | Positive and negative |
| Working power source | Rated voltage: ~ 220V±10%, 50/60Hz |
| Use environment | Temperature: 15°C-35°C, relative humidity 10%-75% |
| Dimension | 600mm×570mm×1500mm |
| Weight | 90 KG |
Details
