The first symbol T indicates the direct grounding of the power system; the second symbol T indicates outside the load equipment The metal conductive part that is not connected to the charged body is directly connected to the earth, and has nothing to do with how the system is grounded. All grounding of the load in the TT system is called protective grounding. The characteristics of this power supply system are as follows.
TT grounding system: In the TT system, the neutral point is directly grounded and isolated from the earth. When a single-phase ground fault occurs, the fault current flows directly into the earth through the grounding resistor, which can limit the fault current, prevent the occurrence of electric shock accidents, and can indirectly monitor the ground fault through the voltage at both ends of the grounding resistor.
TT grounding method applicable occasions: TT system adapts to larger villages with neutral line output and single-phase and three-phase no joint electricity. If you install a leakage protection device, you can get a better safety effect.
1. The TT method refers to the protection system that directly grounds the metal shell of electrical equipment, which is called the protective grounding system, also known as the TT system.
2. The TT system is a system in which the neutral point of the power supply is directly grounded and the shell of the electrical equipment is also directly grounded. Usually, the grounding of the neutral point of the power supply is called working grounding, and the grounding of the equipment shell is called protective grounding. In the TT system, these two groundings must be independent of each other.
3. The TT method refers to the protection system that directly grounds the metal shell of electrical equipment, which is called the protective grounding system, also known as the TT system. The first symbol T indicates that the sexual point in the power system is directly grounded.
4. TT-mode power supply system refers to the protection system that directly grounds the metal shell of electrical equipment, which is called the protective grounding system, also known as TT system.
5. The TT system is the direct grounding of the neutral point of the power system. The exposed metal conductive part of the electrical device that is not connected to the charged body is connected to the low-voltage distribution system of the grounding pole unrelated to the connection point of the power system through the protective grounding wire. That is, it refers to the direct grounding of the metal shell of electrical equipment, which is called a protective grounding system.
1. TT method refers to the protection system that directly grounds the metal shell of electrical equipment, which is called protective grounding system, also known as TT system.
2. The TT system is a system in which the neutral point of the power supply is directly grounded and the shell of the electrical equipment is also directly grounded. Usually, the grounding of the neutral point of the power supply is called working grounding, and the grounding of the equipment shell is called protective grounding. In the TT system, these two groundings must be independent of each other.
3. TT-mode power supply system refers to the protection system that directly grounds the metal shell of electrical equipment, which is called the protective grounding system, also known as TT system.
1. TT method refers toThe protection system that directly grounds the metal shell of electrical equipment is called the protective grounding system, also known as the TT system. The first symbol T indicates that the sexual point in the power system is directly grounded.
2. TT system is an Internet-based online education platform that aims to provide an efficient and convenient teaching and learning environment for students and teachers. The system was developed by a Chinese technology company and has been widely used nationwide.
3. TT-mode power supply system refers to a protection system that directly grounds the metal shell of electrical equipment, which is called a protective grounding system, also known as TT system.
4. The TT system is the direct grounding of the neutral point of the power system. The exposed metal conductive part of the electrical device that is not connected to the charged body is connected to the low-voltage distribution system of the grounding pole unrelated to the connection point of the power system through the protective grounding wire.That is, it refers to the direct grounding of the metal shell of electrical equipment, which is called a protective grounding system.
5. TT-mode power supply system refers to a protection system that directly grounds the metal shell of electrical equipment, which is called a protective grounding system, also known as TT system.
6. The it system is a system in which the neutral point of the power supply is not grounded and the exposed conductive part of the electrical equipment is directly grounded; the tt system is a system in which the neutral point of the power supply and the exposed conductive part of the electrical equipment are directly grounded; the tn system is the neutral point of the power supply is directly grounded and the exposed conductive part of the electrical equipment and A system in which the neutral point of the power supply is directly electrically connected.
TN IT power supply system is named according to the difference between neutral point grounding N, public protection line PE, and protection neutral line PEN junction. The TT system refers to the three-phase four-wire, the neutral point is directly grounded, and the equipment is connected to the PE line.That is, the equipment shell is directly grounded.
In the single-phase transmission line that enters the user, one is called the phase line L, and the other is called the middle line N. In a three-phase system, when the three-phase balance is, the neutral line (zero line) is currentless, so it is called the three-phase four-wire system. Three-phase five-line system: refers to R yellow, S green, T red, N blue or black, ground yellow and green two-color line.
IT system: the neutral point of the power supply is not grounded or grounded by impedance, and the shell of the electrical equipment is grounded by their respective grounding devices.
The three-phase three-wire system is the wiring system adopted for transmission, transmission and transformation. Three-phase four-wire system is the wiring system adopted in factory electricity. Three-phase five-wire system is a wiring system adopted by residential, shop and school electricity.
The first symbol T indicates the direct grounding of the power system; the second symbol T indicates outside the load equipment The metal conductive part that is not connected to the charged body is directly connected to the earth, and has nothing to do with how the system is grounded. All grounding of the load in the TT system is called protective grounding. The characteristics of this power supply system are as follows.
TT grounding system: In the TT system, the neutral point is directly grounded and isolated from the earth. When a single-phase ground fault occurs, the fault current flows directly into the earth through the grounding resistor, which can limit the fault current, prevent the occurrence of electric shock accidents, and can indirectly monitor the ground fault through the voltage at both ends of the grounding resistor.
TT grounding method applicable occasions: TT system adapts to larger villages with neutral line output and single-phase and three-phase no joint electricity. If you install a leakage protection device, you can get a better safety effect.
1. The TT method refers to the protection system that directly grounds the metal shell of electrical equipment, which is called the protective grounding system, also known as the TT system.
2. The TT system is a system in which the neutral point of the power supply is directly grounded and the shell of the electrical equipment is also directly grounded. Usually, the grounding of the neutral point of the power supply is called working grounding, and the grounding of the equipment shell is called protective grounding. In the TT system, these two groundings must be independent of each other.
3. The TT method refers to the protection system that directly grounds the metal shell of electrical equipment, which is called the protective grounding system, also known as the TT system. The first symbol T indicates that the sexual point in the power system is directly grounded.
4. TT-mode power supply system refers to the protection system that directly grounds the metal shell of electrical equipment, which is called the protective grounding system, also known as TT system.
5. The TT system is the direct grounding of the neutral point of the power system. The exposed metal conductive part of the electrical device that is not connected to the charged body is connected to the low-voltage distribution system of the grounding pole unrelated to the connection point of the power system through the protective grounding wire. That is, it refers to the direct grounding of the metal shell of electrical equipment, which is called a protective grounding system.
1. TT method refers to the protection system that directly grounds the metal shell of electrical equipment, which is called protective grounding system, also known as TT system.
2. The TT system is a system in which the neutral point of the power supply is directly grounded and the shell of the electrical equipment is also directly grounded. Usually, the grounding of the neutral point of the power supply is called working grounding, and the grounding of the equipment shell is called protective grounding. In the TT system, these two groundings must be independent of each other.
3. TT-mode power supply system refers to the protection system that directly grounds the metal shell of electrical equipment, which is called the protective grounding system, also known as TT system.
1. TT method refers toThe protection system that directly grounds the metal shell of electrical equipment is called the protective grounding system, also known as the TT system. The first symbol T indicates that the sexual point in the power system is directly grounded.
2. TT system is an Internet-based online education platform that aims to provide an efficient and convenient teaching and learning environment for students and teachers. The system was developed by a Chinese technology company and has been widely used nationwide.
3. TT-mode power supply system refers to a protection system that directly grounds the metal shell of electrical equipment, which is called a protective grounding system, also known as TT system.
4. The TT system is the direct grounding of the neutral point of the power system. The exposed metal conductive part of the electrical device that is not connected to the charged body is connected to the low-voltage distribution system of the grounding pole unrelated to the connection point of the power system through the protective grounding wire.That is, it refers to the direct grounding of the metal shell of electrical equipment, which is called a protective grounding system.
5. TT-mode power supply system refers to a protection system that directly grounds the metal shell of electrical equipment, which is called a protective grounding system, also known as TT system.
6. The it system is a system in which the neutral point of the power supply is not grounded and the exposed conductive part of the electrical equipment is directly grounded; the tt system is a system in which the neutral point of the power supply and the exposed conductive part of the electrical equipment are directly grounded; the tn system is the neutral point of the power supply is directly grounded and the exposed conductive part of the electrical equipment and A system in which the neutral point of the power supply is directly electrically connected.
TN IT power supply system is named according to the difference between neutral point grounding N, public protection line PE, and protection neutral line PEN junction. The TT system refers to the three-phase four-wire, the neutral point is directly grounded, and the equipment is connected to the PE line.That is, the equipment shell is directly grounded.
In the single-phase transmission line that enters the user, one is called the phase line L, and the other is called the middle line N. In a three-phase system, when the three-phase balance is, the neutral line (zero line) is currentless, so it is called the three-phase four-wire system. Three-phase five-line system: refers to R yellow, S green, T red, N blue or black, ground yellow and green two-color line.
IT system: the neutral point of the power supply is not grounded or grounded by impedance, and the shell of the electrical equipment is grounded by their respective grounding devices.
The three-phase three-wire system is the wiring system adopted for transmission, transmission and transformation. Three-phase four-wire system is the wiring system adopted in factory electricity. Three-phase five-wire system is a wiring system adopted by residential, shop and school electricity.
