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What is fault loop impedence in grounding systems and how should be its value?
Wiki User
∙ 11y ago
it should be as low as possible
if it shows as over 5 ohms you should drive some ground rods and put in additional ground condutors
Wiki User
∙ 11y ago
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What you mean by ground fault?
An electric circuit grounding.
Why neutral of generator is resistance grounded and neutral of motor is reactance grounded?
You can use resistance or reactance grounding on generators and motors. My understanding is resistance grounding is often used to limit ground fault currents to a few amperes, while reactance grounding will limit fault current to less than the three phase fault current. If reactance grounding is used to limit fault current o very little (like resistance grounding), transient overvoltage problems can occur.
What is z bus of power system?
Z bus is using in fault analysis of power system..it represents how much impedance the network offers to the fault current.lower the impedence larger the fault current
What would you do if you electrical cleaning equipment is grounded?
The electrical cleaning equipment should be grounded. This grounding is what protects the operator from a serious shock should the the cleaning equipment have an electrical fault occur.
What would you do if the electrical cleaning equipment is grounded?
The electrical cleaning equipment should be grounded. This grounding is what protects the operator from a serious shock should the the cleaning equipment have an electrical fault occur.
What is neutral grounding resistor panel?
A neutral grounding resistor panel is used to resist fault current to the ground. It is used for alternator protection protection purposes. When a fault occurs in the alternator, the panel helps force the current to the ground.
Why and how is reactance grounding done?
Reactance grounding is done to lower ground fault current amounts, often to protect generators. It's done by tying the neutral of a generator to a grounding reactor (the other side of the reactor is tied to ground).
How does a Neutral grounding resistor work?
it uses for alternator protection purpose; when fault occures in alternator it resists that fault current to gound . srikanth, kaenataka .
What is meant by neutral grounding reactor?
Neutral-earthing reactors or Neutral grounding reactors are connected between the neutral of a power system and earth to limit the line-to-earth current to a desired value under system earth fault conditions.
Can you install two ground wires in the same raceway?
There should be no reason to install two ground wires in the same conduit. Code requires that only a single path should be required if it is to carry a fault current. This ground wire should be single and continuous from the device back to the distribution panel. It is the fault current that is carried on the ground wire that trips the breaker or fault protection device. Don't confuse grounding wires with bonding wires.
What is a circuit connected to the Earth called?
Grounding?AnswerIf a line conductor is unintentionally connected to earth, then it is an earth fault.
What is the Acceptable current in ground cable?
A ground is not expected to carry any current. It's only there in case of a fault condition. If you have a current reading through a ground wire there is a fault that needs to be corrected. Many times a lazy electrician who couldn't find a broken neutral connected a receptacle or light fixture to ground to make it work. This is not a proper use of the grounding system, and it is dangerous and should be corrected if encountered. The grounding conductor should have at least the same ampacity of the largest phase conductor connected to the circuits it protects. That way it is capable of carrying the full current of the largest conductor in case of a fault.
