Widely used in the fields of post office,store,elevator,hospital,school,publishing house and stock exchange where normal voltage is in need,and also can be used in the factories of large and middle-scale industrial and mining corp,it is very much suitable for some important devices and supporting single machine.
Three-phase four-line system phase voltage:220±20%
line voltage:380±20%,or phase voltage:220±30%
line voltage:380±30%(can be selected.Please specify when ordering)
Single-phase:220±20% or 220±30%(can be selected.Please specify when ordering.)
Phase voltage:220V Single-phase:220V Line voltage:380V
Output voltage accuracy
1-5%(can be adjusted)Frequency:50HZ/60HZ
≥98%(Power grade over 50KVA)
The voltage for electrical strength and power frequency sinusoidal is 2000V without breakdown and flash over when lasts 1minute
It can last 1 minute at the rated current of two times
Wave form Distortion
No additional waveform distortion
it offers the protections against over voltage,over current,phase shortage and phase-sequence(The single-phase offers no protection against the phase shortage and phase-sequence)and mechanical failure
≤1s(in the condition that the external voltage changes is 10%)
- Q:Why should lighting transformers be used in factories and mines?
- But in many cases, such as mines and machinery, the voltage is too high and unsafe. The lighting transformer is then used to reduce the voltage to the so-called "safety voltage""
- Q:How is the lighting power of the 380V transformer calculated?
- The transformer (Transformer) principle should change the AC voltage of the primary coil, the main component of the device level by using electromagnetic coil core (core) main functions: voltage transformation, current transformer, impedance converter, isolation, voltage regulator
- Q:Lighting, lights, transformers, bulb brightness is too low, what's the matter?
- Generally, the power of the transformer is the apparent power, and the light bulb is the active power, and the power matching is taken into account.
- Q:Our power lines and lighting lines are connected to the same transformer. Is there any effect?
- The transformer that power supply company manages, it is to supply motive power and illumination generally, namely the lighting transformer that does not have special illumination to illuminate. Units of their own transformers, is generally the case. The utility model has the advantages that the transformer and other equipment can be fully utilized, the efficiency is high, and the external power supply circuit does not need to be divided into power transmission lines and lighting circuits, and is simple and orderly, and the cost is low. As for the price of electricity, it is usually negotiated a power and lighting each percentage of the electricity to calculate and receive.
- Q:What transformer can be used in a safety voltage lighting transformer?
- Early European countries used in the power industry, widely used in the electronic industry or industrial and mining enterprises, machine tools and machinery equipment general circuit control power supply, safety lighting and indicator light power supply.
- Q:How many A leakage protection switches are used in 5000VA lighting transformers?
- Secondary current =5000VA/220=22A, you can select the 32A leakage protection switch.
- Q:Why is elevator lighting transformer installed?
- 1) a lamp shall be installed at the highest and lowest point 0.5m away from the hoistway, and a light shall be installed at intervals not exceeding 7m, and a control switch shall be installed in the engine room and the bottom pit respectively;2) the lighting power supply for car top and hoistway shall be 36V; when 220V is adopted, the residual current action protector shall be installed;3) there is no lighting device for a closed well road with sufficient lighting conditions around the hoistway.
- Q:Line lights, lighting transformers in use!! Can live line work?!! Be afraid of electric shock 40
- Line lights, lighting transformers in general how many low voltage, can live operation, but to do safety measures. For example, do not short-circuit, damp environment, wear insulation shoes, wearing insulating gloves and so on.In fact, all the voltage levels, as long as safety measures can be done live operation.
- Q:Is the substation separate from the power and illumination transformer?
- The power and lighting power supply in the substation need not be separated. In a large capacity power plant, the lighting can be electrically powered to ensure that the generator is stopped. The lighting source is often separated from the lighting transformer and powered by other power supplies.
- Q:Can the 500 volt lighting transformer be changed into an electric welder?
- The no-load voltage is higher (about 70~90 V), the arc can be smoothly started, and the voltage will be reduced to about 30 V when welding.
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1. Manufacturer Overview
|Annual Output Value
||US$50 Million - US$100 Million
2. Manufacturer Certificates
|a) Certification Name
3. Manufacturer Capability
||Shanghai Port,Ningbo Port,Guangzhou Port
||81% - 90%
|No.of Employees in Trade Department
||English, Chinese, Spanish, Arabic, French, Russian
||3,000-5,000 square meters
|No. of Production Lines
||OEM Service Offered Design Service Offered Buyer Label Offered
|Product Price Range