Quality Oil Immersed Distribution Transformers Directly from Factory

Product Description

Oil immersed distribution transformer with conservator

This type of oil immersed distribution transformer is equipped with conservator which mounted above the main tank.

This is not hermetic type transformer, so the transformer oil is always in contact with the air. The main function of the transformer oil conservation is to prevent the transformer oil in the oil tank from contacting with the air, so as to avoid the oxidation and deterioration, water infiltration and reducing the insulation dissipation. Due to the difficult sealing of large transformer, when the transformer oil expands with heat and shrinks with cold, there must be water in the oil tank. After installing the oil gasket, when the oil is heated and expanded, part of the oil will enter the conservator, and when the oil is cooled, part of the oil will return to the tank, so as to avoid large area contact between the insulating oil and the air and reduce oxidation and water infiltration.

When the volume of transformer oil expands or shrinks with the temperature of oil, the conservator plays the role of oil storage or oil replenishment to ensure that the oil tank is full of oil. At the same time, it also reduces the contact area between oil and air and reduces the deterioration speed of oil. Its side is also equipped with an oil standard tube (ferromagnetic oil level gauge) to monitor the oil level change. The volume of the transformer oil is about 1 / 10 of the volume of the transformer oil, which is based on the standard that it can be seen when the transformer is stopped in winter and does not overflow when the maximum load is in summer. The indicated value of the ferromagnetic oil level gauge shall correspond to the temperature oil level curve on the transformer body.

There are two types of conservator (conservator) of transformer: main body (oil tank) and tap changer (conservator). It is required that the oil level of the main body is slightly higher than the tapping oil level to prevent the oil of the tapping oil tank from infiltrating into the main body oil tank and affecting the insulation of the oil tank of the transformer main body. Because the oil in the tap tank has arc extinguishing effect, the oil deteriorates quickly and there are many impurities. The function of tap changer oil filter is to automatically filter oil once after each action and pressure regulation of on load tap changer.

Application

Power stations, switchgear, factory, agriculture, hospitals, buildings, airports, tunnels, chemical plants, nuclear power plants etc.

Service Environment

Device types: outdoor type

Normal environment conditions of use: the elevation not more than 1000 m

Environmental highest temperature + 40°C, minimum-25°C

The special environment conditions of use: elevation of more than 1000 m

Environmental highest temperature + 40°C, minimum-45°C. (when you order details)

Mounting ambicnt: no corrosive gas, no obvious dirt environment

Rated capacity	Voltage Combination			Connection symbol	Loss(KW)		No-load current (%)	Short-circuit impedance %	Weight (Kg)
(KVA)	High voltage (KV)	High voltage tapping range	Low voltage (KV)	Connection symbol	Load	No-load	No-load current (%)	Short-circuit impedance %	Oil weight	Overall weight
10	6KV 6.3KV 6.6KV 10KV 11KV 13.8KV	+5% ±2×2.5%	0.4	Yyn0 Dyn11	0.26	0.09	3.2	4	45	172
20					0.44	0.1	3		57	230
30					0.6	0.13	2.3		75	295
50					0.87	0.17	2		88	395
63					1.04	0.2	1.9		95	420
80					1.25	0.25	1.9		103	480
100					1.5	0.29	1.8		115	540
125					1.8	0.34	1.7		130	645
160					2.2	0.4	1.6		145	740
200					2.6	0.48	1.5		175	885
250					3.05	0.56	1.4		195	1010
315					3.65	0.57	1.4		230	1205
400					4.3	0.8	1.3		255	1375
500					5.1	0.96	1.2		285	1620
630					6.2	1.2	1.1	4.5	350	1960
800					7.5	1.4	1.1		405	2310
1000					10.3	1.7	1		490	2690
1250					12	1.95	1		550	3315
1600					14.5	2.4	0.8		625	3985
2000					18	2.6	0.7		745	4520

S1 Type Oil immersed Distribution Transformer
Rated capacity	Voltage Combination			Connection symbol	Loss(KW)		No-load current (%)	Short-circuit impedance %	Weight (Kg)
(KVA)	High voltage (KV)	High voltage tapping range	Low voltage (KV)	Connection symbol	Load	No-load	No-load current (%)	Short-circuit impedance %	Oil weight	Overall weight
10	6KV 6.3KV 6.6KV 10KV 11KV 13.8KV	+5% ±2×2.5%	0.4	Yyn0 Dyn11	0.26	0.060	2.2	4	61	220
20					0.44	0.060	2.2		82	270
30					0.6	0.090	2.1		97	350
50					0.87	0.130	2.0		110	430
63					1.04	0.150	1.9		140	500
80					1.25	0.175	1.8		175	580
100					1.5	0.200	1.6		195	690
125					1.8	0.235	1.5		220	760
160					2.2	0.270	1.4		230	910
200					2.6	0.325	1.3		260	1035
250					3.05	0.395	1.2		290	1220
315					3.65	0.475	1.1		310	1450
400					4.3	0.565	1.0		350	1750
500					5.1	0.675	1.0		410	2170
630					6.2	0.805	0.9	4.5	490	2450
800					7.5	0.980	0.8		580	2980
1000					10.3	1.155	0.7		710	3590
1250					12	1.365	0.6		770	4410
1600					14.5	1.650	0.6		1000	5600
2000					17.15	1.950	0.5		1060	6310

FAQ

Q: Dose your company is a manufacturer or trader?

ROOQ: We are a professional and leading manufacturer for transformer, MV/LV switch-gear, compact transformer substation and other distribution equipments in China.

Q: What is your after-sales service?

ROOQ: 5 years warranty, free repair and free spare parts during this 5 years, lifetime repair and maintenance. As generally , the life time can be over 30 years.

Q: What is the delivery Time?

ROOQ: As to oil immersed distribution transformer with conservator, the delivery time is about 10-15 working days.

Q: What are the standards and the certificates about your products?

ROOQ: We customize the transformer according to the standards as belowing:

IEC 60076 Power Transformer

IEC 60137 Insulated Bushings for Alternating Voltages Above 1 kV

IEC 60296 Unused mineral insulating oils for transformers and switchgear

IEC 76 50 GB1094.1-1996 GB1094.2-1996 GB1094.3-2003 GB1094.5-2003 GB/T6451-2008 GB/T10237-1988 JB/T10088-2004 GB311.1-1997 GB/T7595 JB/T3837-1988

We have got the certificates of ISO9001, CCC,CE etc.

Q: Does your company can accept OEM or ODM?

ROOQ: Yes, we can accept OEM or ODM. Our Research & Development team is very professional ,we have the latest technology ,can develop and customize the products base on the customers' requirements.

Q: What is your payment terms?

ROOQ: T/T or L/C and other payments terms can be accepted.