- อุปกรณ์ป้องกันทางไฟฟ้า1. อุปกรณ์

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อุปกรณ์ป้องกันทางไฟฟ้า
1. อุปกรณ์ป้ องกันทางไฟฟ้ า อาจารย์ณัฐวุฒิ ค่าไทยสง สาขาวิศวกรรมไฟฟ้ า คณะวิศวกรรมศาสตร์ มหาวิทยาลัยเทคโนโลยีราชมงคลล้านนา พิษณุโลก
2. อุปกรณ์ป้ องกันไฟฟ้ า คืออะไร อุปกรณ์ป้ องกันไฟฟ้ า คืออุปกรณ์ที่ช่วยป้ องกันอันตรายที่เกิดจากไฟฟ้ า ใน กรณีที่เกิดไฟฟ้ าช๊อต ไฟฟ้ าดูดหรือเกิดการลัดวงจร อาจจะทาให้เกิดความเสียหายแก่ ชีวิตและทรัพย์สินได้ ดังนั้นอุปกรณ์ป้ องกันไฟฟ้ าจะช่วยลดอันตรายที่เกิดจากไฟฟ้ าได้ อุปกรณ์เหล่านี้ได้แก่ ฟิวส์, เซอร์กิตเบรกเกอร์, การต่อลงดิน และเครื่องป้ องกันไฟฟ้ าดูด เป็นต้น
3. คืออุปกรณ์ป้องกันไฟฟ้าที่สามารถเปิดวงจรในขณะที่มีความผิดปกติเกิดขึ้น โดยที่ไม่ ทาให้ตัวเองขาดหรือชารุดเหมือนฟิวส์ ถ้าเซอร์กิตเบรกเกอร์เปิดวงจร เราจะต้องหาสาเหตุ ว่า ใช้งานกระแสไฟฟ้า มากเกินกว่าที่กาหนดหรือไม่ เกิดไฟดูด, ไฟรั่ว, ไฟช็อต, ไฟเกินหรือไฟ ตก เกิดปัญหาที่จุดใด แล้วทาการแก้ไขปัญหาในกรณีดังกล่าว หลังจากนั้นให้กดปุ่มรีเซ็ตให้ วงจรไฟฟ้าทางานใหม่ได้ 1. เซอร์กิตเบรกเกอร์ (Circuit Breakers) 1.1 MCCB (Molded Case Circuit Breaker) 1.2 Air Circuit Breaker หรือ power Circuit Breaker 1.3 Miniature Circuit Breaker
4. 1.MCCB ( Molded Case Circuit Breaker ) คือ เซอร์กิตเบรกเกอร์ที่ห่อหุ้มปิดมิดชิดมีหน้าที่หลัก 2 อย่างคือ ทาหน้าที่เป็นสวิตช์เปิด-ปิดด้วยมือ และเปิดวงจรอัตโนมัติ • Thermal Unit ใช้สาหรับปลดวงจรออกเมื่อกระแสเกินเนื่องจากโหลดเกิน ( Over load ) • Magnetic Unit ใช้สาหรับปลดวงจรออกเมื่อกระแสเกิน เนื่องจากลัดวงจร( Short circuit ) 1.1 MCCB (Molded Case Circuit Breaker)
5. ลักษณะของ MCCB (Molded Case Circuit Breaker)
6. 2. Electronic trip MCCB หรือ Solid state trip • จะ ใช้วงจรอิเล็กทรอนิกส์วิเคราะห์ ค่ากระแสเพื่อสั่งปลดวงจร ภายในจะมีหม้อแปลงกระแส ทาหน้าที่แปลงกระแสให้มีขนาดต่าลง โดยมีไมโครโปรเซสเซอร์ ทาหน้าที่วิเคราะห์ค่าของ กระแสที่ไหลผ่าน หากสูงเกินกว่าค่าที่กาหนดก็จะสั่งให้triping coil
7. 1.2 Air Circuit Breaker หรือ power Circuit Breaker เป็นเบรคเกอร์ที่ใช้กับแรงดัน

ผลลัพธ์ (อังกฤษ) 1:

- Electrical protection devices.1. ป้ electrical device data Professor NAT qualified up Thailand song branch electrical engineering, Faculty of engineering, rajamangala University of technology Lanna Phitsanulok.2. What is a data device ป้ ป้ device of electric power data is a device that provides electrical ป้ data security dangers caused by electric shock in the event of electric vacuum, or short-circuit may damage found at the Taman. Life and property. Thus, the ป้ device. Electrical data reduces the danger from electricity. These devices include a fuse, circuit breaker, credit services, continuing ground and air power suction ป้ data, etc.3. electrical protection device that is able to open the circuit while the malfunction occurred. Without Make yourself a tea or in a hurry like fuse. If the circuit breaker opening credit, we will need to find out why the use of too many ngankrasae electric kettle one? Fire, fire, fire, leakage, shock absorbing, light, sunset fire exceeded or there is a problem that has annulled a solution in such cases. After that, press the reset button, power cycle, TA. 1. services to glorify breaker (Circuit Breakers) 1.1 MCCB (Molded Case Circuit Breaker) Air Circuit Breaker or power 1.2 Circuit Breaker Circuit Breaker 1.3 Miniature.4.1.MCCB (Molded Case Circuit Breaker) is the circuit breaker credit services, case closed, there are two main functions: mitchit tha act as ignition switch-off and turn on the automatic cycle • Thermal Unit used for the circuit when flow exceeds the discharge because of overload (Over load) • the Unit is used for Magnetic circuit when flow exceeds the discharge because of a short circuit (Short circuit) 1.1 MCCB (Molded Case Circuit Breaker).5. characteristics of MCCB (Molded Case Circuit Breaker).6. Electronic MCCB trip, or Solid state electronic circuitry to be used: • analysis of trip. The value stream to order release cycle. Inside, there is a pot size of output functions to output the Ta ta Ta nights with microprocessor analysis value of current that flows through the. If it is higher than the value that person will have the means to check triping coil.7. power Circuit Breaker or Circuit 1.2 Air Breaker is the circuit breaker that is used with the < 1000 volt voltage is large enough to use as the main CB. generally, there is a range from the current 225-6300 A. high capacity ranging from 35, and is interrupting-150 KA with General structure. Steel with fire (Arcing chamber), the Ark had strong so that they can get the circuit. Most were Air CB that has sold in the market are often used to detect and analyze electronic devices. Stream discharge order to the circuit.Miniature Circuit Breaker 8.1.3 is a small circuit breaker. Install a protection device in conjunction with the power Panel (Load center) or pay electric panels room relies on Java (consumer unit) circuit breakers of this type could not be found. Circuit breaker current value. There are 1, 2, 3 pole, pole and pole lived in thermal cycle release mechanism and a common magnetic shape as shown.9. the load Center enclosure (Load center).10. Consumer Unit11. fuse (Fuse) fuse, it functions as a protection device by tha na on electrical circuit. When the stream overload (Overload Current) or circuit (Short Circuit Current) is greater than the fuse flow resistance (Current Rating Fuse's) to make missing fuse (Blown Fuse) and not make the circuit is missing. Longer flow to prevent damage to the device and the user device.12. fuse 2.1 lead from lead to Tin mixture, which contains the used melting point patterns for each installation to switch ta excerpt called cutout (cut out) as because of the cheap easy installation with multiple size of fuse is called by Burton. Each lead contains the fuse's extension, the rate of the flow resistance is called the fuse line because there's a line klom.13. the crab claws fuse fuse 2.2 crab claws similar to crab claws. Or cut out or installed at the bridge lights like a fuse wire. Many of the same size fuse sizes diameter14. fuse or fuse gearbox Plug Outlet 2.3 fuse is fuse contained in the cylinder at a time, with the tiles are installed on a base plate, metal fillings are designed to melt. When the current flowing in the circuit exceeds the value that carbonated means check box. There are many different sizes, generally, has endured a 30-amp current used by typical houses.15. also known as barrel fuses used in safety switch safety switch, also known as (safety switch), cartridge fuse type is divided into 2 g a small casing, from the current 10 A rated 60 A page by touching the adjacent Spurs switch. ข. the blades are larger, ranging from 70 up to A current coordinates. When the fuse is missing can change fuse fuse cartridge filling 2.4.16. fuse the blade cartridge17. the excess flow protection device and the switch is the excerpt that apply to voltage system based on ta building. Can a student General safety inside the box of the sawin contains the pages and the fuse cartridge casing or blades safety switch (safety switch).18. switch on TI (Ticino) as Shino excerpt and prevent another type which is very popular because it can be good for both Ta and over load short circuit, particularly the specific control points, such as pumps, motors, refrigerator, using Uncle sheet metal coil, called the chan trip (shunt trip coil) to adjust the rate-cutting action.The Swiss cabinet bot and control equipmentAn electric control cabinet is the main MDB. There is a Main Circuit Breaker to cut off all the electrical circuits of the building. There is a large electrical panel. Typically used in buildings with large and medium-sized factories, as well as with the use of fire in large quantities "of Cabinet power switch Board is receiving power from a low voltage or resistance of the transformer and then pay a load to the different parts of the building," because a large section of MDB so popular is a big drop on the floor.The internal components of the switch Board Cabinet. The picture shows the components in the switch cabinet boards.1 project (Enclosure) 2. bus bar (Busbar) 3 services (Circuit Breaker) circuit breaker credit 4 power meter5. the device (Accessories). Switch Board Cabinet project. Made from sheet metal cabinet with a scheme to bring the key features as follows: Mechanical properties can be obtained from an external mechanical force. Both normal and non-normal.Properties of heat resistance, heat from the environment. Abnormalities in the system, and Ark (to Park), which is the result of a short circuit.Properties corrosion resistance against to corrosion from moisture and chemicals.Sawitbo's Cabinet also help project. Prevent the human touch Board switch are near the best that there is electricity.Protection device.

ผลลัพธ์ (อังกฤษ) 2:

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electrical protection equipment
first. Sheets of the electrical equipment professors Nattavut Thailand, the electrical engineering faculty of engineering. Rajamangala University of Technology Lanna Phitsanulok
2. sheets of the power plant is sheets of the electrical equipment is equipment that year. As well as the danger posed by power plants in the event of an electrical shock, electric shock or cause a short circuit. May cause damage. Life and property The sheets of the electrical equipment to reduce the harm caused by these devices include the electric fuses, circuit breakers, grounding and sheets of the power vacuum, etc.
3. Is protection equipment. electrical circuits can be opened as a disorder caused by a deficiency itself does not cause damages or a fuse. If the circuit breaker opening circuit. We must find a cause that use electricity. More than is required or not an electric shock, current leakage, short circuit, overload or power problems at any point. Then apply a solution in such cases. Then press the reset button. The new circuit 1. Circuit Breaker (Circuit Breakers) 1.1 MCCB (Molded Case Circuit Breaker) 1.2 Air Circuit Breaker Miniature Circuit Breaker or Power Circuit Breaker 1.3
4. 1.MCCB (Molded Case Circuit Breaker) is Sir. Circuit breakers are encapsulated enclosure has two primary functions is to serve as the switch - off by hand. And automatic cycle • Thermal Unit is used to disconnect the circuit when overcurrent due to overload (Over load) • Magnetic Unit is used to disconnect the circuit when overcurrent. Due to a short circuit (Short Circuit) 1.1 MCCB (Molded Case Circuit Breaker)
5. Characteristics of MCCB (Molded Case Circuit Breaker)
MCCB 6. 2. Electronic or Solid state trip • Trip to analyze electronic circuits. For the current release cycle Within a current transformer Responsible inverter to a size lower. The microprocessor Responsible analysis of the The current passing through If exceeded, the requirements will be ordered Triping Coil
Air Circuit Breaker or 1.2 7. power Circuit Breaker Breaker is used to pressure <1000 volt large as the main CB. In general, the current coordinates. 225-6300 A. and high interrupting capacity ranging from 35-150 KA. Structure painted. There arc steel fire box (Arcing chamber) great strength to be able to get a short circuit. Many of the Air CB., Which are sold in the market. Electronic devices are often used to detect and analyze the current release cycle
8. 1.3 Miniature Circuit Breaker Breaker is small. The installation is equipped with protection. Electrical sub-panel (Load center) or the annual residential electricity supply (consumer unit) breakers of this kind can not be set. The current circuit breaker can have either a 1 pole, 2 pole and 3 pole mechanism to disconnect both thermal and magnetic shape generally below
9. Container Load Center (Load Center)
10. Consumer Unit
11. 2. Fuse (Fuse) is protected by fuses serve as a field in a circuit. When the current overload (Overload Current) or short circuit (Short Circuit Current) is greater than the current fuse resistance (Fuse's Current Rating) will cause the fuse (Blown Fuse) make a break and currents do not flow anymore. To prevent damage to occur to the device and the user device
12. 2.1 fuse lead produced from a mixture of lead and tin, which has a low melting point is used to install a circuit breaker, known as the cutout (cut out) such as easy installation. There are many inexpensive measures will be referred to by a number of fuses, each fuse lead to a number of different flow rates of resistance to the fuse line is a line of round
13. 2.2 Fuse Fuse claw claw resembles a claw. Assembly or installation is cut-out or circuit breaker. Like fuse wire There are multiple sizes as the fuse line
14. 2.3 fuse plug or fuse units, fuse plug fuse is contained in a cylinder that painted tiles. Time applications to be installed on a base plate spiral filaments designed to melt metal. When a current flows in a circuit within the stipulated. There are many sizes generally are resistant flow rate of 0-30 amps used as dwellings typical
15. Known as a fuse barrel. Use a safety switch installed. Also known as safety switches (safety switch) Carr cartridge fuses divided into two types: a. A casing smaller current rating of 10 A - 60 A, with contact with the pivot switch b. A leaf. Current Rating large knife from 70 A up to replace the fuse when the fuse was 2.4 Carr cartridge fuse
16. Carr cartridge fuses blade
17. Overcurrent protection and circuit breaker is used with low voltage electrical systems in buildings. General Office Inside the box of Viroqua Safety Switches and Cartman will contain contact Ridge fuse. A sheath or blade safety switches (safety Switch)
18. switch Bticino (Ticino) is extracted and protect one of the most popular is the ability to work well both over load and short circuit in particular. Spot water pump motor control such as refrigerators, called a plaque. Class trips, the coil (shunt coil trip) to adjust the rate cut dress histamine Swiss cabinet AFC North and the control cabinet MDB is electrically controlled main circuit Main Circuit Breaker to cut all power to the building. A large panel power Generally used in buildings with medium and large, including industry with the use of fire in plenty of "principle of cabinet switch board is to receive light sent from the power or resistance pressure. Low Power And then load them to various parts of the building "and because most of the large size of the cabinet MDB is so popular on the floor inside. The cabinet switch board image display components in a switch board first cabinet (Enclosure) 2 busbars (Busbar) 3 Circuit Breakers (Circuit Breaker) 4 power meter 5. Accessories (Accessories) cabinet switch board. Made of sheet metal cabinet is attributed. Key features The mechanical properties Can receive from an external mechanical force. Both normal and abnormal thermal properties. Heat from the environment. The system disorders And the arc (or sparks), which is the result of a short circuit , corrosion properties. Is resistant to abrasion, moisture and chemical cabinet of the switch board to help prevent a man near the switch board. Exposure to the electrical protection devices.

ผลลัพธ์ (อังกฤษ) 3:

Electrical protection equipment -

1. Equipment POM Model, electrical, master nattawut, the Thai Xiong engineering electricity, Faculty of engineering, University of technology Lanna Phitsanulok
2.Protective device of electric blanket, is what equipment, fire protection, electric, is a device to help prevent, กันอัน dangerous caused by electricity. In case electricity Lead shot. Electricity attracts or a short circuit may apply to damage to life and property.Two electric blanket, can help to reduce the harm caused by electricity can, these devices include fuse,Circuit breaker, grounding and fire protection of electrical, suck, etc.
3.Is electricity can open circuit protection devices, while there were abnormalities without make their own lack of tea or damaged as the fuse. If the circuit breaker open circuit, we could find the cause that use electricity.Born, electric shockLeak and fire power, light, overload or fire, fall, crashes at any point, and Takahashi troubleshooting in such cases. Then press the reset circuit to work again 1. Circuit breaker (Circuit Breakers) 1.1 MCCB (Molded Case Circuit. Breaker) 1.2 Air Circuit Breaker or power Circuit Breaker 1.3 Miniature Circuit Breaker
4. 1.MCCB (Molded Case Circuit Breaker) is wrapped tightly closed circuit breaker a main 2 thing. Apply function as a switch - off by hand and open circuit automatic - Thermal Unit used for discharge circuit outside the current over due out when the overload. (Over.Magnetic Unit) - used for discharge circuit when overcurrent due to short circuit (Short circuit) 1.1 MCCB (Molded Case Circuit Breaker)
5. Characteristics of MCCB (Molded Case Circuit Breaker)
6. 2.Electronic trip MCCB or Solid state trip - to use electronic circuit analysis, the current value in order to discharge circuits within a current transformer. Apply duty rectifier so low down by a microprocessor. Apply function value analysis of stream flow.Coil
.7. 1.2 Air Circuit Breaker or power Circuit Breaker a breaker used with pressure < 1000 volt large used as main CB.? Are generally rated current from the 225-6300 A. And interrupting capacity high since 35-150 KA.General structure painted steel is quenched arc channel (Arcing chamber) big strong to be able to get the แสลัด cycle number can Air. CB. There in the market, often use electronic equipment to detect and analyze the current to สั่งปลด circuit
8.1.3 Miniature Circuit Breaker is a miniature circuit breaker used as protective devices equipped with panelboard blue minor (Load Center). The panel power supply the residence (consumer unit) this type of breaker can not adjust the set current value cutting cycle, have both.Pole.2 pole 3 pole relies on the mechanism and discharge circuit and both thermal magnetic shaped, generally the
9. Safety load center (Load Center)
10.? Consumer Unit
11. 2.Fuse (fuse Fuse) is the protective device by applying functions like Na one in the circuit when the over current coordinates (Overload Current). Short circuit current (or Short Circuit Current) is greater than the current fuse. Bear (Fuse 's Current Rating) is applied to fuse (Blown.Apply to circuit of current flow and no longer, to prevent damage to the device and the user equipment
.12. 2.1 fuse lead. Produced from a mixture of lead and tin, which has a low melting point is commonly used to install with the circuit breakers, also known as cut out (cut out), as shown in the picture because it is easy to install. Cheap, there are several size by the number of fuse.Different is called fuse line due to the linear round
.13. 2.2 fuse fuse similar to claw claw claw. Assemble or install the cut out or circuit breaker fuse wire, like with many sizes like a fuse line
14. 2.3 plug fuse plug fuse fuse transmission or is contained in a cylindrical fuse painted with tile The time available to install on the base ply with sheet metal design to melt filter When current flows in the circuit over the schedule. There are many sizes.0-30 amp used by building the general
.15. Also called fuse cylinder. Popular installed within the switch box. Also known as the safety switch (safety switch) cartridge fuse is divided into 2 species is a.A casing is small, the rated current from the 10 A - 60 A by a touch switch attached to the pivot language blade has large rated current from the 70 A. Go up when the fuse can change the filter cartridge fuse fuse has been 2.4
16.Cartridge fuse blade
17.The over current protection circuit breakers and used with the low voltage system by building, office applications. Inside the box of safe ตี้สวิ รช์ consists of front touch and cartridge fuse, a casing or blade safety switch (safety switch)
18.Switch Ticino (Ticino) is a device excerpts and prevent another type which is most widely used because it can work well both over load. Short circuit and especially the specific control points such as pump, motor, refrigerator, sheet metal is called(shunt coil trip) to adjust the rate cut VT
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safety Swiss abort and controller
.Safety MDB is a main electrical switchboard, Main Circuit Breaker to edit all circuits of a building with a large electrical แผงจ่ generally used in buildings with medium. And large."The working principle of a safety switch board is receiving fire from electricity or low pressure resistance of the transformer. Then pay load to the various parts of the building. "And because most of the size of the safety MDB is large so popular on the floor!The internal components of the safety switch board

display components in the safety switch board
1 cabinet (Enclosure)
2 บัสบา square (Busbar)
3 circuit breaker (Circuit Breaker)

4 electric meter 5 props (Accessories)

.Project safety switch board made from sheet metal used in a cabinet possesses important:

mechanical properties to mechanical force from outside. Both normal and abnormal
.Thermal properties and can endure heat from the environment, disorder in the system. And the arc (or spark), which is the result of short circuit
properties against corrosion. Can withstand the corrosion of moisture and chemicals
.The cabinet of switch board also help
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prevent humans near the switch board. Touch current protect device, mostly with