Toroidal Transformer 15 - 4000va Step up and Down Transformer

• Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio, UPS
• Phase: Single
• Core: Core-type Transformer
• Cooling Method: Dry-type Transformer
• Winding Type: Auto-transformer
• Certification: ISO9001-2000, ISO9001, CCC
• Model NO.: 15-4000va
• Usage: Single-phase Transformer, Rectifier Transformer, Power Transformer, UPS Transformer
• Frequency Characteristics: Low Frequency
• Shape of Core: Ring
• Brand: Okd
• Transformer for Equipment: Low Rise High Efficiency
• Transformer Type: Toroidal/Ring Transformer
• Transformer Voltage: Customized
• Isolating Transformer: Waterproof Transformer
• Transformer Quality: High Quality Transformer
• Transport Package: Carton on Pallet
• Specification: 15-4000va
• Trademark: OEM
• Origin: China
• HS Code: 8504319000
• Production Capacity: 800000PCS/Month

Product Description

Toroidal transformer 15-4000va step up and down transformer

Features:

• Basic data:
  • Capacity: 15VA - 4000VA
  • Phase: single
  • Input voltage: AC power with voltages of various countries
  • Output voltage: AC, according to customers' requirement
  • Frequency: 50/60Hz
  • Power factor: 0.9 to 0.98
  • Efficiency: 75 to 98%
  • Voltage Regulation: 12 - 3%
  • Output no-load loss: 0.5 to 10.0W
  • Temperature-rise: ≤85°C
  • Insulation class: B, 130°C; E, 120°C
• General features:
  • 100% QC from raw material to finished products
  • Good price-function ratio
  • Reliable performance and safety
  • Small volume and low weight
  • Low mechanical hum
  • Good shielding performance, low magnetic leakage
  • Dimension adjusted freely
  • Easy to mount and fasten
  • Excellent workmanship
• Testing items:
• • No-load test (no-load current, no-load voltage, no-load loss)
  • Load test (load voltage, temperature-rise)
  • Inductive voltage test
  • DC resistance test
  • Safety test
• Key parts:
  • Core:
    • Wound by high-quality cold grain silicon
    • Annealed by advanced vacuum annealing furnaces to improve electronic data
    • Any dimension from customer available
  • Wire: copper and aluminum available
  • Weld aluminum enamel wire well to save your cost 15 - 35%, based on our know-how technology
  • Thermal protector: cutoff and switch both available
• Application:
  • Electronic meter and apparatus
  • Cable TV and digital network
  • Electronic control
  • Medical Equipment
  • New electric power supply
  • Decorative illumination system
  • Monitoring and control equipment
• Installation: horizontal (non-conventional-type base plate), sunk, side type, bridge

Model Number	Power (VA)	Adjusting Rate(%)	Efficiency (%)	Exterior Dimension(mm)		Weight (kg)	Installing Aperture(mm)	Screw (mm)
				Height(A)	Exterior(B)
OKD-15	15	20	73	25	65	0.38	Φ6.5	M6
OKD-30	30	16.5	76.6	30	78	0.6	Φ6.5	M6
OKD-50	50	15.2	82.4	35	82	0.85	Φ6.5	M6
OKD-80	80	12.6	84.7	38	88	1.1	Φ6.5	M6
OKD-100	100	11.2	86.5	45	93	1.5	Φ8.5	M8
OKD-120	120	9.6	88	42	115	1.6	Φ8.5	M8
OKD-150	150	7.2	88.1	47	103	1.9	Φ8.5	M8
OKD-160	160	6.6	88.6	42	118	2.1	Φ8.5	M8
OKD-200	200	6.1	89.7	48	120	2.4	Φ8.5	M8
OKD-250	250	5.5	90.3	50	127	2.9	Φ8.5	M8
OKD-300	300	5.2	91.7	55	127	3.2	Φ8.5	M8
OKD-400	400	4.6	93	56	146	4.5	Φ8.5	M8
OKD-500	500	4.0	94	57	147	5.0	Φ8.5	M8
OKD-600	600	4.1	95	72	155	6.7	Φ8.5	M8
OKD-700	700	3.8	95	82	162	8.9	Φ8.5	M8
OKD-800	800	3.8	95.1	72	170	8.2	Φ8.5	M8
OKD-1000	1000	3.3	95	83	163	9.5	Φ10.5	M10
OKD-1200	1200	2.9	96.2	85	165	11.00	Φ10.5	M10
OKD-1500	1500	2.9	96	90	170	13.00	Φ10.5	M10
OKD-2000	2000	2.8	96	105	180	15.6	Φ10.5	M10
OKD-3000	3000	2.5	97	110	210	22.3	Φ10.5	M10
OKD-3500	3500	2.4	97	115	245	25.2	Φ13.5	M13
OKD-4000	4000	2.3	97	130	260	31.5	Φ13.5	M13

 

Testing process 
1. No-load test (included no-load voltage, no load current and no load loss);
2. Inductive voltage test;
3. Load test (load voltage and temperature rise;
4. Temperature rise test;
5. Insulated resistance;
6. Hi-pot test;
7. Leakage inductance test;
8. DC resistance test;
9. Surface inspection.

WORKSHOP



Our Advantages:
1. 20 years experience in transformer and inductor manufacturing;
2. Scientific management system, strong technical team, and strict quality control system;
3. RoHS,CE,TUV and UL certified;
4. OEM & ODM;
5. Competitive price,in time delivery and perfect after-service online.