JMB portable lighting safety transformer is suitable for circuits with AC 50Hz and voltage of 1500V and below. It is used as the local lighting power supply for machine tools and other equipment. It is composed of BK series transformer and protective shell. There are terminals for input power supply and load wiring on both sides of the shell, and grounding screws for grounding; It is a safe isolation step-down transformer. Because the "traveling crane" in the factory is a metal frame, when workers work on the traveling crane, if they use high-voltage lighting lamps, leakage is easy to cause casualties. Therefore, the safety voltage of 36V and below is used as lighting power on the traveling crane. JMB portable lamp transformer is a safety isolation transformer that converts 220V or 380V AC into 36V and below safety voltage through the transformer for local lighting. It is generally converted into 12V, 24V, 36V, etc. it is mainly used in low-voltage power supply occasions, such as local lighting in factory production lines and site dormitories.

Features

1. Scientific and reasonable design can work effectively in the rated load for a long time.

2. It is made of high-quality new silicon steel sheet to effectively reduce iron loss and improve conversion efficiency.

3. It is wound with high temperature resistant high-quality wire to reduce the loss of the transformer, and soaked in insulating paint for drying.

4. H-class insulation material and high-temperature resistant DMD insulation material are adopted to improve the high-voltage strength, insulation grade and prolong the service life.

5. Patented design, beautiful and novel, high power density, small volume and high space utilization rate.

Model and its meaning

Technical parameters

Number of phases: single phase

Capacity: 50VA ~ 10KVA

Input voltage: single phase 220V, 380V

Output voltage: 12V, 24V, 36V, 220V, 380V, etc. (customizable)

Frequency: 50 / 60Hz

Efficiency: ≥ 90%

Insulation grade: F grade, H grade and HC grade are optional (conventional H grade) temperature resistance 180 °

Working efficiency: inductive (isolated)

Waveform distortion: no additional waveform distortion

Insulation resistance: ≥ 50m Ω

Temperature rise: 60K

Electrical strength: power frequency sinusoidal voltage 3000V for 1 minute without breakdown and flashover

Overload capacity: double the rated current for 1 minute

Executive standard: the product complies with vde0550, iec439, jb5555, gb226 and other international and national standards

Ambient temperature: - 20 ℃ ~ + 50 ℃

Humidity: ≤ 95% RH, no condensation

Altitude: ＜ 1000M

Relative humidity: ＜ 90%

Cooling mode: dry self cooling / air cooling

Workplace: no corrosive gas and conductive dust

Design life: more than 20 years

Stock: conventional single-phase 220V / three-phase 380V are available in stock. Please contact the sales personnel for details

Note: the installation site is free of gas vapor, chemical deposition, dust, dirt, other explosive and corrosive gases and conductive dust that seriously affect transformer insulation

Product model, outline and installation dimensions

Service conditions

1. The altitude shall not exceed 2500m.

2. The maximum ambient air temperature shall not exceed 40 ℃, and the minimum temperature shall not be lower than - 25 ℃.

3. Air relative humidity: the average maximum relative humidity in the wettest month is 90%.

4. No violent vibration and impulse.

5. In the medium without explosion danger, and there is not enough place in the medium to corrode metal, destroy insulation gas and conductive dust.

6. Places free from rain and snow.

Ordering instructions

1. Basic model, specification, capacity and quantity of transformer;

2. Primary (input) and secondary (output) voltage of transformer;

3. When there are multiple groups of secondary voltages, the capacity distribution of each output voltage shall be provided;

4. The outline and installation dimensions are for reference only. If the required dimensions need to be changed, they must be explained when ordering.

Note: if the user has special requirements, the company can carefully design and manufacture according to the user's needs.