Experimental Training Board has been designed specifically to study the behavior of the Reactive Elements and Time Dependent Network Analysis. Practical experience on this board carries great educative value for Science and Engineering Students.
Object:
01. To study Charging & Discharging of a Condenser.
02. To Calibrate D.C. meter for A.C. voltage measurements.
03. To construct the vector (phasor) diagram for series L-R circuit and to calculate the power factor and "Q" at 50 Hz.
04. To study series LCR resonance circuit and its "Q".
05. To study series L-C resonance circuit and from it to find out the true value of "L".
06. To study series C-R circuit.
07. To study different types of filters.
08. To study the parallel R-C resonance circuit.
09. To study the parallel L-C resonance circuit and to find its "Q".
10. To verify circuit laws.
11. To find out the impedance and reactance of LCR reactive elements and to plot their reactance curves.
12. To plot "LISSAGOUS" figures.
Features:
The board consists of the following built-in parts:
01. Mains Transformer having secondary tappings of 10V, 20V, 30V, 40V, 50VA.C. at 500mA.
02. D.C. Voltmeter, 65mm rectangular dial with switch selectable ranges of 10V, 20V, 30V, 40V and 50V.
03. Four Rectifier diodes.
04. SPDT switch.
05. Potentiometer and adequate no. of other electronic components.
06. Mains ON/OFF switch, Fuse and Jewel light.
* The unit is operative on 230V ±10% at 50Hz A.C. Mains.
* Adequate no. of patch cords stackable from rear both ends 4mm spring loaded plug length ½ metre.
* Good quality, reliable terminal/sockets are provided at appropriate places on panel for connections & observation of waveforms.
* Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book References.
PTC thermistors current protector, also called PTC thermistor resettable fuses, protect load against over-current, overload, short circuit. No need for replacement, resume protective function after a short cooling-down time.
Ceramic PTC (positive temperature coefficient) thermistors are used instead of conventional fuses to protect load, such as motors, transformers, or electronic circuit, against overcurrent for circuit protection. PTC thermistor protector not only respond to inadmissibly high currents but also if a preset temperature limit is exceeded. PTC thermistor over-current protector limits the power dissipation of the whole circuit by increasing their resistance and thus reducing the current to a harmless residual value. In contrast to conventional fuses, PTC thermistor resettable fuses do not have to be replaced after elimination of the fault but resume their protective function immediately after a short cooling-down time.
PTC Thermistor Over-current Protector Application
It applies in the over-current overload and short circuit protection of transformers, battery charger, switches, switch power supply, adaptor, meter, instrumentation, apparatus, electronic coils, control panels, air conditioner, automotive electron, etc.
Operating Principle of PTC Thermistor for Overload Over-current Protection
The operating principle is as indicated in the following. When a circuit is in the normal status, the current through PTC is lower than the rated current and PTC thermistor protector is in the normal state with small resistance value, which will not affect the normal operation of the protected circuit. In case of some fault in the circuit and the current is greater than the rated current, the PTC thermistor protector will become hot quickly and present a high resistance state, which sets the circuit relatively "off" to protect the circuit from damage. After the fault is removed, PTC thermistor protector will automatically restore its low resistance state and the circuit will resume normal operation.
Normally, when PTC thermistor is used as an overcurrent protection component, it is preferred to select maximum operating current, maximum operating voltage and proper specifications. Furthermore such factors should be taken into consideration as the dimensions of the components, rated zero-power resistance, operating temperature range, etc.
PTC thermistors current protector, also called PTC thermistor resettable fuses, protect load against over-current, overload, short circuit. No need for replacement, resume protective function after a short cooling-down time.
Ceramic PTC (positive temperature coefficient) thermistors are used instead of conventional fuses to protect load, such as motors, transformers, or electronic circuit, against overcurrent for circuit protection. PTC thermistor protector not only respond to inadmissibly high currents but also if a preset temperature limit is exceeded. PTC thermistor over-current protector limits the power dissipation of the whole circuit by increasing their resistance and thus reducing the current to a harmless residual value. In contrast to conventional fuses, PTC thermistor resettable fuses do not have to be replaced after elimination of the fault but resume their protective function immediately after a short cooling-down time.
PTC Thermistor Over-current Protector Application
It applies in the over-current overload and short circuit protection of transformers, battery charger, switches, switch power supply, adaptor, meter, instrumentation, apparatus, electronic coils, control panels, air conditioner, automotive electron, etc.
Operating Principle of PTC Thermistor for Overload Over-current Protection
The operating principle is as indicated in the following. When a circuit is in the normal status, the current through PTC is lower than the rated current and PTC thermistor protector is in the normal state with small resistance value, which will not affect the normal operation of the protected circuit. In case of some fault in the circuit and the current is greater than the rated current, the PTC thermistor protector will become hot quickly and present a high resistance state, which sets the circuit relatively "off" to protect the circuit from damage. After the fault is removed, PTC thermistor protector will automatically restore its low resistance state and the circuit will resume normal operation.
Normally, when PTC thermistor is used as an overcurrent protection component, it is preferred to select maximum operating current, maximum operating voltage and proper specifications. Furthermore such factors should be taken into consideration as the dimensions of the components, rated zero-power resistance, operating temperature range, etc.
Fuse holder
We have a series of high quality fuse holder, and sell very well in australia. Such as alstom australia. We can also develop the fuse holder you need.
According to our customer
660 Ptc Resettable Fuse Kt Smd Series Suppliers
Short on time? Let Ptc Resettable Fuse Kt Smd Series sellers contact you.
Ptc air heater is one kind of heater that are able to maintain automated temperature control and power saving.
It depends on ptc elements as its heating resources, and corrugated plate made of aluminum alloy as its radiator.
The heaters are processed by conglutination and welding.
Heat resistant plastic (pps) frame is equipped for more easy installation for final applications.
Product features:
- very low air resistance
- long service life
- no thermostat required
- virtually unlimited life
- no moving parts to wear
- very low cost
- no electrical noise
- the higher the temperature, the more electricity efficient
- does not burn when in contact with paper, matches or clothes
Typical applications:
- air conditioners
- drier
- warm air generator
- air conditioner for both warm and cold temperature
- automobiles
1) dimension(mm): 1.6*0.8
2) colors: red, green, yellow, blue and white.
3) price: most favorable and competitive price
4) quality: total quality control of material as well as product
Features: Rating Current and Voltage 10/15A250V; Tolerant voltage: above 1500; Rated functioning temp. TF deg C:70-360degrees Celsius;Over 100 Varieties; Certification: PSE CCC ISO9001; Having Applied for the National Patent(above 240degreesCelsius)
Small resistance, Low central temperature;Tolerance:- 2 +2
The thermal fuses/cutoffs are widely used for security to prevent damage of device due to the rise in the ambient temperature.Transmission of heat to the thermal pellet due to the rise in the ambit dangerous(opening temperature),causes melting of the thermal pellet,cutting off and opening the contact of Lead Wire A and Electrde by means of extending Spring-S type and pushing electrode away.It can't be recovered after functioning even if the temperature is reduced.The thermal cutoffs(JPE series) are widely used for security to prevent damage of devices by over-heating.
Packing: Anti-electrostatic foil
Cartons
Carton:12.5 cm*12.5 cm*7.5 cm
Weight:0.63 kg
Qty:500 PCS
Application:Glass fuses, are widely used in power supplies, switching power supply, adapter, charger, LED driver power supply, all kinds of household appliances
The Product Sells Point:
Key Specifications/Special Features:
Functional Characteristics
Testing current
Blow Time
Min
Max
150%
1hour
/
210%
100ms
1800s
275%
50ms
2s
400%
10ms
300ms
1000%
/
20ms
5 * 20 fast Blow glass fuse
Breaking Capacity
35A or 10In whichever is greater
Material
Fuse body –glass tube
End cap--nickel plated brass
Pigtail--tin plated copper on nickel plated brass cap
Application:Product use: ceramic fuse, products widely used in power supplies, switching power supply, adapter, charger, LED driver power supply, all kinds of household appliances. LED power supply recommended use, mainly for export to the United States, designed for industrial voltage 277V
The Product Sells Point:
Key Specifications/Special Features:
Product Description:
Product Name: High Voltage Fuses
Product Type: 31FB
fusing characteristics: fast-break
Product Package: Epoxy
body size: 4 * 11mm
Operating temperature: -55 ? - + 125 ?
Product Features: 1, small size: the smaller the size of the ease of use of the design and installation;
2, the outer layer of insulation: epoxy resin and other components to prevent short circuit caused by touch;
3, explosion-proof characteristics: high rugged ceramic tubes with epoxy-proof packaging can enhance the safety performance;
Application:Product use: ceramic fuse, products widely used in power supplies, switching power supply, adapter, charger, LED driver power supply, all kinds of household appliances. LED power supply recommended use, mainly for export to the United States, designed for industrial voltage 277V
The Product Sells Point:
Key Specifications/Special Features:
Product Description:
Product Name: High Voltage Fuses
Product Type: 31FB
fusing characteristics: fast-break
Product Package: Epoxy
body size: 4 * 11mm
Operating temperature: -55 ? - + 125 ?
Product Features: 1, small size: the smaller the size of the ease of use of the design and installation;
2, the outer layer of insulation: epoxy resin and other components to prevent short circuit caused by touch;
3, explosion-proof characteristics: high rugged ceramic tubes with epoxy-proof packaging can enhance the safety performance;
Application:Household appliances products; such as iron, hair dryer (hairdryer), ovenhair straightener, vacuum cleaners, heaters, fans, juicer, mixer, power, motors, printers, copiers, fax machines, HID ballasts, fluorescent lighting ballasts, transformers, chargers, battery packs, heating appliances, electric heaters, electric cookers, electric thermos, coffee maker, fan, fans, sewing machines, water heaters, power converters, power plugs and sockets, refrigerators, air conditioners, car air conditioners, instruments, equipment, and so do overheat protection.
The Product Sells Point:
Key Specifications/Special Features:
Features:
1, to prevent overheating, cut off the circuit, disaster prevention, to ensure safety;
2, set temperature, high accuracy, large carriers, with minimal impact current impact;
3, durability and sustainability is good, fast response to the ambient temperature;
4, resistance to vibration, impact resistance, cut off the circuit accurately, not reset;
5, easy to install;
Main purpose:
RY is a thermal fuse when it reaches the set temperature, a one-time change the conductive state (or action). And non-resettable thermal protection components.
Application:Household appliances products; such as iron, hair dryer (hairdryer), ovenhair straightener, vacuum cleaners, heaters, fans, juicer, mixer, power, motors, printers, copiers, fax machines, HID ballasts, fluorescent lighting ballasts, transformers, chargers, battery packs, heating appliances, electric heaters, electric cookers, electric thermos, coffee maker, fan, fans, sewing machines, water heaters, power converters, power plugs and sockets, refrigerators, air conditioners, car air conditioners, instruments, equipment, and so do overheat protection.
The Product Sells Point:
Key Specifications/Special Features:
A, the design and operating principle of thermal fuse
Temperature fuse functional circuits to detect abnormal temperature and cut off. It can detect domestic or industrial heating temperature anomalies and electrical products quickly cu
t off the circuit can be achieved by preventing the effects of fire in unburned.
Temperature fuse wire type with axial and radial lead type two. Use thermal particles (organic matter).
Safety Certification: UL, CSA, VDE, BEBA, PSE, JET, CQC ... certificate, EU ROHS environmental directives
Second, the application: thermal fuse to prevent overheating of the following areas
Ramming mass is commonly used in metallurgy, building materials, non-ferrous metal smelting, chemical, machinery and other manufacturing industries.
Ramming mass is widely used in non-core intermediate frequency furnace and core induction furnace.
As an intermediate frequency furnace ramming material, refractory ramming is applied to melt gray cast iron, nodular cast iron, malleable cast iron, vermicular cast iron, and cast alloy steel; to melt carbon steel, alloy steel, high manganese steel, tool steel, heat resistant steel, stainless steel, molten aluminum and its alloys; to melt red copper, brass, white brass, bronze and its alloys, etc.
Induction furnaces are used for melting cast iron, mild steel and various alloy steels in foundries and making of steel in mini steel plants using sponge iron
The refined high silicon, low iron quartz sand and quartz powder are selected and the fused quartz sand is added as the refractory material., with no slag, no crack, damp proof, convenience of repair, and the corrosion resistance, thus greatly improving the furnace service life span and the economic benefit..
Silica ramming mass can safely be used up to an operating temperature of 1600 deg C. Since it expands very little, it is superior to both alumina and magnesia refractories to resist thermal shocks
Acid ramming material is the premixed ramming mass of the lining material. The acid ramming mass is used to smelt a series of metal materials such as ordinary steel and carbon steel.
The lining practice best suited to a particular furnace depends upon the capacity and design of the furnace, operation practice adopted during making of a heat, and furnace output.
Ca45 series solid smd tantalum capacitors are sinter-anode and molded with small sizes while high capacitance, reliability and excellent operation performances. The series capacitor is designed and manufactured to meet the growing demand for surface mount technology. There are p, a, b, c, d, e six case codes available for choice. Comparing with dipped tantalum capacitor, they have lower esr. The products are widely used in telecommunications, computer, military equipments and other electronic products. They meet the requirements of eia 535baac.
Thermal fuse manufacturing
The thermal fuse is a non-resettable, one-time overheat protection element, and the current fuse is a one-time overcurrent protection element. Series connection in a variety of electrical power input, when the use of household appliances in the abnormal temperature changes, or temperature out of control lead to excessive temperature rise, the thermal fuse can quickly cut off the circuit to avoid the occurrence of fire.
Commonly used in: hair dryer, iron, rice cookers, electric stoves, transformers, motors, drinking fountains, coffee pots and so on.
We not only related to the product structure and technology, more in-depth to the core of the product - Fuse materials development and application, such as fusible alloy wire, lead antimony alloy wire, organic mixture and so on. To provide you with one-stop from the rapid proofing to small batch production services. Please contact our professional team, let us come for you to achieve all the technical requirements.
What Is A Thermal Fuse?
Thermal fuse, is overheat protection components, also known as temperature fuse or Thermal Cutoff (GB GB1616.1-2013), widely used in electrical overheating protection.
The temperature sensing portion can be divided into:Fusible alloy wire and organic particle type temperature fuse, after fusing once cut off the current, non-recovery type thermal fuse.
Features Of Thermal Fuses
In Yaxun can provide a full range of thermal fuses, from your first consultation message to the final product delivery, you can get our engineers and sales staff professional, personalized service.
(1) high precision operating temperature, fusing action is reliable, not premature or delayed blown;
(2) good thermal stability, long-term in a high temperature state will not get out of control;
(3) load current up to 20A, it can be adapted to use a large current household appliances;
(4) the shell is not charged, the use of safe, easy to install;
(5) low prices, to adapt to mass production.
(6) temperature response speed;
(7) small size, easy to install.
(8) Structural accurate, resistance to vibration, impact resistance, applicable to household appliances, industrial circuit overheating protection;
