50-1600/35kv Oil-Immersed Power Distribution Transfomers with off-Circuit Tap Changer

Product Description

Product Description

Overview & features

     These series transformers are with the following characteristics:low loss, low noise, protection against thunder and lighting, high short-circuit withstand capacity and beautiful appearance etc.
    

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These series transformers are mainly used in urban and rural power grids and other industrial,mining enterprises,power transmissions and distribution industry and also agricultural projects.


Iron
The iron core is processed by advanced vertical cut, horizontal cut, and stacking with stepped lap core and grade 3 seams.
It disperses the air distribution,improve flucx trend,thus,and decreases the no-load loss,no-load current and noise.

The core uses paticular adhesive for the plate,press ring, and silicon steel surface;and a range of overall structure and measures are used to increase  the mechanical strength.

Winding 
The winding adopts corrugated oil duct with non-dipping process, bound by shrinkable tape; all windings are of concentric coils; taps of HV winding with corresponding tapping voltage shall be led to the tap switch, and the switch shall be installed on the box cover. Power supply must be cut off first when changing the tapping voltage.
 
Tank
The tank is bell type or core-lifting type,and the tank side is as corrugated form,with flowing lines,simplicity and beauty.
New structure of HV,LV windings and reasonable layout of oil duct and connecting area increases the capacity of mechanical strength and short-circuit withstand capacity.

Installation of protection device 
Transformers of all capacity specifications have been equipped with pressure relief valve; 
Gas relay with alarm and tripping terminals is available on request. 

Oil-temperature measurement device 
All the transformers are equipped with tube holder for glass-stem thermometer that is set on the top of oil tank, and immersed in oil for about 120±10mm;
1000~2000kVA transformer is equipped with outdoor signal thermometer;

Transformer oil tank 
Transformer oil tank is composed of corrugated walls with powder painted surface and reinforced with film. Corrugated cooling fin not only has cooling function, but also has "breathing" function, the elasticity of corrugated cooling fin make it adapt to the change of oil volume due to change of temperature. So this hermetically sealed transformer does not have oil conservator, which decreases the height of transformer. 
The transformer adopts vacuum oil-injection technology during encapsulation that thoroughly removes the moisture from transformer, and keeps the transformer oil from contacting the air. This technology also avoid insulation performance reduction or oil aging due to entering of oxygen or moisture, it improves operation reliability of transformer. 

Service conditions
Installation height: altitude shall not exceed 1000m
Ambient temperature: -40ºC~40ºC


Dimensions & Schematic

50-1600/35  Series  Three-phase  Double-winding  Distribution  Transformers  with  Off-circuit  Tap  Changer
 

Rated apacity	Woltage  Ratio(kv)		Vector Group	Loss values for S9 serial transformer		Loss values for S10 serial transformer		Loss values for S11 serial transformer		No-load current	impedance	Weight		Outline Dimension			Gauge
(kVA)	HV	LV		No-load loss	Full-load loss	No-load loss	Full-load loss	No-load loss	Full-load loss	(%)	(%)	Oil weigh	Total weight	L	W	H	(mm)
50	35 38.5±5% or ±2×2.5%	0.4	YynO Dyn11	0.21	1.21	0.19	1.15	0.17	1.15	2	6.5	275	740	1100	1000	1700	660
100				0.29	2.02	0.26	1.92	0.23	1.92	1.8		350	995	1100	1150	1750	660
125				0.34	2.03	0.31	2.26	0.27	2.26	1.7		430	1250	1100	1150	1800	660
160				0.36	2.83	0.32	2.69	0.29	2.69	1.6		450	1405	1160	1150	1860	660
200				0.43	3.33	0.39	3.16	0.34	3.16	1.5		495	1460	1230	1300	1950	660
250				0.51	3.96	0.46	3.76	0.41	3.76	1.4		520	1625	1250	1300	2000	660
315				0.61	4.77	0.55	4.53	0.49	4.53	1.4		590	1915	1400	1320	2070	820
400				0.73	5.76	0.66	5.47	0.58	5.47	1.3		680	2175	1510	1350	2150	820
500				0.86	6.93	0.77	6.58	0.69	6.58	1.2		760	2485	1620	1370	2240	820
630				1.04	8.28	0.94	7.87	0.83	7.78	1.1		830	2950	1750	1390	2330	820
800				1.23	9.9	1.11	9.41	0.94	9.41	1		880	3370	1900	1420	2400	820
1000				1.44	12.15	1.3	11.54	1.15	11.54	1		1005	4140	2165	1450	2485	820
1250				1.76	4.67	1.58	13.94	1.41	13.94	0.9		1160	4700	2230	1500	2600	1070
1600				2.21	17.55	1.97	16.67	1.7	16.67	0.8		1250	5570	2250	1650	2650	1070

 

It is made by advanced assembling lines and method,with qualified and refined accessories.
It enjoys four remote functions:
 

1.remote communication

2.remote test 

3.remote adjustment

4.remote control

 

Application

These series transformers have passed the identification test by state bureau of machinery industry,and state power corporation.

ABOUT OUR COMPANY
a).HONLE Electronic co.,Ltd  is specified in producing Single phase and three phase voltage stabilizers, voltage regulator, distribution transformers, low-voltage switch gear assembly,complete plant equipment  
b)Passed the ISO9001 quality management system certification  
c).HONLE insist on the quality of survival ,innovation and development  all the time , try our best to be winner to give you the competitive product .
 

FAQ
Q 1. what's the payment terms? 
A. We accept LC, T/T, D/P,Western Union PayPal. If others, we can discuss.
Q 2. how's the delivery time ?
A. usually it will take about 30 days after order confirmed.
Q 3. tell me the standard of package?
A. For the small capacity, we will use carton, but for big capacity, we should use strong wooden case for protection.
Q 4.Could you offer Form A or C/O ? 
A. No problem. We can prepare relative documents to origin affairs office or other office to apply for related certificates.
Q 5.Would you accept to use our logo ?
A.If good quantity, it absolute no problem to do OEM.
Q 6.We want to know month capacity. 
A. It depends on which model.For example for relay type capacity , month capacity can reach near 5000pcs/month while big capacity near 2000pcs/month.
Q 7.Where is your market?
A. Our products are popular in North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western European so on. Some of them are our regular customers and some of them are developing. We hope you can join us and make mutual benefit from our cooperation.
Q 8. what kind of certificates you have ?
A. Our company already achieve ISO9001, and for products, we have CE,ISO9001,SGS and so on.

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