0
The main cause of insulation breakdown is excessive temperature. However, it can also be caused by excessively-high electrical stress due to sharp corners or other protrusions in the conductor which act to intensify the electric field beyond the capability of the insulation.
Wiki User
∙ 11y ago
Wiki User
∙ 15y agoThe majority of times insulation breakdown is caused by heat generated by an over current draw on an under size wire. Bad high resistance splices will burn the insulation back along the wire from the splice. Other times by extremely high voltage spikes.
Add your answer:
Earn +20 pts
What are the internal causes of supply chain disruption?
Breakdown of information sharing systems
How do you identify asbestos insulation?
The only way to reliably identify asbestos-containing insulation is to have a small sample analysed by a qualified laboratory.
Industrial Insulation Contractor?
form_title=Hire an Industrial Insulation Contractor form_header=Whether you are remodeling your existing business or constructing a new building, hire a contractor to insulate the building. What size is the building?=_ What types of insulation needs to be installed?=_ When would you like the work done?=_
What is LRB for insulation material?
LRB (Light resin Bonded) Epoxy is used for insulation purposes. It is sponge-like material. It is usable typically up to 400degC. Commonly, it is also called 'mineral wool'.
How current transfomer is step up voltage transformer n step down current transformer?
Current transformers are not voltage transformers. Current transformer are used for metering or protection purposes, with single turn primary. Generally the secondary current is either 1Amps or 5Amps.
What causes insulation breakdown in a power tool?
Heat is insulation's big enemy.
When was Breakdown - Transformers - created?
Breakdown - Transformers - was created in 1987.
Why high voltage transformers have graded insulation?
It is to decrease the amt of insullation materials used. It can be used only for star connection.Answer'Graded insulation' is all about controlling the shape of the electric field within the insulator to prevent breakdown due to local peaks in potential difference across that insulation.
Different types of insulation used for transformers?
Most transformers are insulated with polymers or porcelain. Some transformers have an oil based insulation which must be kept dry to remain effective.
What is difference between breakdown voltage and dielectric strength of transformer?
The dielectric strenght of a transformer represents the maximum voltage permissible to apply across the transformer insulation i.e. between the transformer winding to another part of the transformer, normally the chassis or another winding and without break-down of the insulation ocurring (e.g. arcing). The breakdown voltage of a transformer represents a voltage that exceeds its dielectric strenght and that causes breakdown e.g. arcing across the insulation.
What are the major causes of loss of excitation on generators?
The major causes of loss of excitation on generators are due to an open circuit or a short circuit in the field winding. This may also be caused by a breakdown of the insulation system.
What is the 16th episode called in transformers prime?
The 16th episode is called operation breakdown where mech capture the decepticon breakdown and operate on him.
How is the breakdown test of an insulation sheet done with a picture?
time and temperature dependence of the transformer oil and its insulation paper used
What is an insulation transformer?
did u mean isolation transformers..?? if it is, it's already been answered..!!
Which instrument is used to test insulation breakdown of a conductor?
Because contemporary testing is more complex and includes provisions for assessing a broader spectrum of characteristics (and doing it more accurately), we have specialized test equipment to handle it. In the case of insulation breakdown, it can be tested with an insulation breakdown test set. In the "old days" of testing, a megohm-meter or megger was used to "slam dunk" an evaluation.
Which oil is used in x ray machine for insulation and cooling?
Oil used in electric transformers.
What causes breakdown of uterus lining?
When an egg is not fertilized by sperm, this causes the breakdown of the uterus lining. It is known as menstruation.
