WHBD Toroidal Transformer

PRODUCT

Transformer
WSG Three-phase dry type isolation transformer WSBK Three-phase open type isolation transformer 380V to 380V filtering anti-interference isolation transformer WOSG three-phase dry-type transformer SG-F PV isolation transformer K-factor isolation transformer WBK single-phase control isolation transformer DG-P zero-ground voltage isolation transformer IT medical set isolation transformer KSG/BBK explosion-proof transformer Isolation transformer for imported equipment Isolation transformer for export equipment 220V/220V shielded isolation transformer High voltage test transformer WSCD Marine Transformer Low voltage high current SDDG transformer JBK series transformers Tunnel long-distance step-down transformer Rectifier transformer Toroidal transformers Multi-tap energy-saving transformers Three-phase to single-phase Scotch transformer Single-phase to three-phase dry-type transformers JMB BJZ Lighting Transformer QZB step-down starting transformer
Voltage Regulator
SBWDBW compensating regulator SBW-F split-regulation compensation regulator Printing laser CNC machine regulator SVC TND Regulator TNS SVC high precision automatic voltage stabilizer Microcomputer non-contact voltage regulator JJW JSW Precision Voltage Regulator TNSJA Tunnel Oil Regulator SBW-SG Stabilizer
Regulators
TSJA contactless oil regulator 650V500V induction regulator TESGZ column regulator TSGC TDGC Contact Regulator TC-G Isolated Regulator
Reactors
Inverter input reactor Inverter output reactor Series reactor DC flat wave reactor Shunt reactor Filter reactors High voltage reactor Hollow shunt reactor
Power supply sets
Three-phase inverter power supply Single-phase inverter power supply 400Hz Medium Frequency Power Supply DC Power Supply Medical Insulation Monitor 24V medical special power supply Voltage and frequency stabilization power supply Lightning Surge Tester Pulse voltage generator ESD Tester
Indoor and outdoor components
Vacuum Breaker High voltage load switch Vacuum load switch High voltage disconnect switches High voltage lightning arrester

Tel：400-685-8582

Tel：+86-21-57715555
+86-21-37831986

Fax：+86-21-37831846

Phone：13817716438

Email：weho@chinaweho. com

Address：Building 2, No.8 Nanle Road, Songjiang District, Shanghai

Category：Toroidal transformers
Overview of toroidal transformers The core of the toroidal transformer is a transformer seamlessly rolled from high-quality cold-rolled silicon steel sheets. The coil of the toroidal transformer is evenly wound on the iron core, and the direction o

Hotline：021-57715555 13817716438

Product Description

Overview of toroidal transformers

The core of the toroidal transformer is a transformer seamlessly rolled from high-quality cold-rolled silicon steel sheets. The coil of the toroidal transformer is evenly wound on the iron core, and the direction of the magnetic field lines generated by the coil almost completely coincides with the magnetic circuit of the iron core. Compared with the laminated type, the excitation energy and iron core loss will be reduced by 25%.

Internal structure advantages of toroidal transformers

The core of the toroidal transformer is made of high-quality cold-rolled silicon steel sheets (thickness is generally below 0.35mm), seamlessly rolled, which makes its core performance better than traditional laminated cores. The coil of the toroidal transformer is evenly wound on the iron core, and the direction of the magnetic field lines generated by the coil almost completely coincides with the magnetic circuit of the iron core. Compared with the laminated type, the excitation energy and iron core loss will be reduced by 25%. The toroidal core is wound by silicon steel tape, the toroidal core has a continuous magnetic circuit, and the laminated core transformer has an air gap between the EI sheets; therefore, there is a large air gap and the magnetic resistance is laminated The main disadvantage of transformers. The toroidal core has no air gap, and the electrical noise is much smaller than that of the EI-type and C-type core transformers. The use of vacuum impregnation technology can make the iron core a solid whole without deformation during winding and processing; because the ring-shaped iron core is very strong, vibration and audio noise are reduced.

Toroidal transformer fixing method

There are many fixing methods for toroidal transformers, the most common method is to use the center hole of the toroidal transformer to fix. It should be noted that fixing parts such as screws should not ground the top pressure plate and the lower bottom plate of the transformer at the same time, so as not to form a short-circuit ring;

Toroidal isolation transformer performance index list

Toroidal isolation transformer performance index list (some examples)
model	Power ( VA)	Primary DC copper resistance ( Ω±20% )	No-load current ( ≤mA )	No-load loss (≤W)	Dielectric strength between primary and secondary (KV)	Adjustment rate (≤%)	Insulation class	Full load temperature rise (≤℃)	Efficiency ( ≥% )
WHDB-50	50	35	15	1.5	3.5/60S	10.5	B	35	88
WHDB-100	100	15.5	25	2.5	3.5/60S	8.5	B	40	89
WHDB-200	200	6.2	35	4.5	3.5/60S	7	B	50	90
WHDB-500	500	1.9	45	7.5	3.5/60S	5.5	B	65	92
WHDB-1000	1000	0.85	80	12	3.5/60S	5	B	75	93

Common specifications and dimensions of toroidal (type) isolation transformers

Ring (type) isolation transformer model list (some examples)
power	All copper ( WHDB series)		Semi-aluminum ( WHDB-L series)		All aluminum ( WHDB-2L series)
power	Dimensions H×Φ ( mm )	Installation hole distance a×b ( mm )	Dimensions H×Φ ( mm )	Installation hole distance a×b ( mm )	Dimensions H×Φ ( mm )	Installation hole distance a×b ( mm )
100VA	54×98	78×78	55×100	78×78	55×103	78×78
200VA	65×108	90×90	66×110	90×90	72×113	90×90
320VA	72×127	105×105	73×128	105×105	75×130	105×105
400VA	77×133	105×105	78×135	105×105	82×135	105×105
500VA	79×138	115×115	85×140	115×115	90×140	115×115
800VA	91×148	130×130	93×150	130×130	97×155	130×130
1000VA	97×157	130×130	100×165	130×130	102×165	135×135
Remarks: Dimensions can be customized according to customer requirements, please contact customer service & call: 021-57715555

No more Back No more