Step-up and Step-Down Control Transformer Low Voltage Single Phase

• Customization: Available
• Application: Power, Electronic, Instrument
• Phase: Three
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Separated Winding Transformer
• Certification: ISO9001, CCC
• Usage: Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Brand: Zhengxi
• Rated Power: 50~31000kVA
• Voltage: 380V/3kv/6kv/11kv/33kv
• Connection: Dyn11/Yd11/Yyno
• No-Load Losses(Kw): 0.1~2.8
• Impedence: 4%
• Transport Package: Wooden
• Specification: 3000*2000*2500
• Trademark: ZHENGXI or OEM
• Origin: Zhejiang, China

Product Description

A single-phase dry-type isolation transformer ensures complete electrical isolation between the power source and sensitive equipment. Designed without oil, the dry-type construction offers enhanced safety and minimal maintenance. Built with premium materials and advanced techniques-such as vacuum pressure impregnation and high-temperature segmented baking-it delivers long-lasting performance and reliability. Integrated shielding and harmonic filtering effectively minimize interference and electrical noise, ensuring a clean and stable power supply. By isolating the input from the output, it improves equipment safety and operational stability across various industrial and commercial environments-all at a competitive cost.

 

Product Parameters

 

Parameter	Specification
Phase	Single-phase (1ϕ)
Capacity Range	0.5-30 kVA (various models)
Input Voltage	220 / 230 / 240 VAC (±10%)
Output Voltage	115 / 120 / 230 / 240 VAC (selectable)
Voltage Accuracy	±5% (at full load)
Voltage Regulation	±5-6% (no-load to full-load)
Waveform Distortion	<1% total harmonic distortion
Insulation Class	Class F (155°C) standard; optional Class H (180°C)
Frequency	50/60 Hz
Overload Capacity	150% rated current for 60s; 200% for 30s
Insulation Resistance	>100MΩ (500V DC)
Dielectric Strength	2× rated voltage, 60 seconds (primary-secondary)
Design Life	≥20 years (typical in normal use)
Operating Temperature	0°C to +40°C (ambient)
Relative Humidity	0-95% (non-condensing)
Applicable Standards	IEC60076-11, UL5085-3, CE mark, RoHS