Model NO.:

S-11

Application:

Power

Phase:

Three

Core:

Core-type Transformer

Cooling Method:

Oil-immersed Type Transformer

Winding Type:

Two-winding Transformer

Certification:

ISO9001-2000, ISO9001, UL/cUL CSA

Usage:

Power Transformer

Frequency Characteristics:

50/60Hz

Shape of Core:

Stacked

Brand:

Daelim Belefic

Type:

Oil-Filled Transformer

Capacity:

20mva

Standard:

IEEE/CSA/as

MOQ:

1 Unit

Winding Material:

Copper

Cooling:

Oana/Knan

Core Material:

Silicion Steel

Frequency:

50/60Hz

Output Voltage:

4.15kv

Input Voltage:

69kv

Tap Changer:

Oltc/Nltc

Temperature Rise:

55/65

Insulation Oil:

Mineral Oil, Vegetable Oil

Tank:

Silicon Carbon Steel

Oil Tank Material:

Stainless Steel

Trademark:

DAELIM BELEFIC

Transport Package:

Tray

Specification:

S-10000/69-4.15

Origin:

China

HS Code:

850421

Product Description

Power Transformer

Power transformers are a core component of power transmission system. The substation transformer used for power transmission and transformation in a unit or substation, and is also the core part of the substation. Transformers are the core equipment of the traction power supply system of electric locomotives, and also the key equipment to ensure the safe and stable operation of the traction power supply system.

Product Description

Design and Manufacture Standard ANSI-IEEE 57. 12/CSA/EN/BS/GOST/AS,IEC 600761

Design

Sealed-tank system /Inert-gas pressure system or Conservator-tank system without diaphragm

On load or no load voltage tap changer

ONAN/ONAF/ODAF/OFAF/OFWF/KNAN/KNAF

Insulation

Mineral Oil Inhibited I Not Inhibited I Vegetable oil

Primary voltage

Up to 230kv, up to 900kv BIL

Capacity

Up to 240MVA

Frequency

50/60 HZ

Operating Condition

Suitable for indoor and outdoor application.

Ambient temperature:	-50 ºC~40 ºC
Relative humidity:	ambient air relative humidity should be below93%,
Altitude:	≤1000m
Max wind speed:	≤35 m/s
Earthquake acceleration:	horizontal acceleration ≤0.3g
vertical acceleration	≤0. 15g
Special conditions:	customized products are available.

STANDARD FEATURES

Capacity range:Through 60 MVA (ONAN), with high-voltage
ratings through 230 kV (900 kV BIL)
Service Location: Outdoor
Core: Regular grain-oriented; mitered cruciform with step-lap construction
Coils: Cylindrical construction; all copper windings, custom tempered per design requirements; circular windings with rectangular or continuously-transposed conductor; helical low-voltage windings; continuous disc medium-voltage windings; shielded disc high-vollage windings
Radiators: Detachable panel type with shut-off valves; mild steel
Insulating oil: mineral oil type I & typell
Tank Cover.Welded,
Bolted Manholes: On cover or tank
Tank Base: Flat bottom or Skid under base
Tank Material: Mid Steel
Frequency: 60 Hertz Winding
Tem rise: 55 ºC
HV Taps; DETC, ETC in tank or out
- Above rated volts: 2 x2- 1/2% off load taps of full capacity
-Below rated volts: 2 x 2- 1/2% off load laps of full capacity
Valve: Drain and Fiter Valves, w/Sampler
Lifting, Moving, and Jacking Facilities

Technical Data

Technical Data for 69KV Class Three Phase Two Winding OLTC Power Transformer

(KVA) Rated Power	(KV) High Voltage	(KV) Low Voltage	Connection Symbol	Short Circuit Impendence (%)	No-load Loss (KW)	On-load Loss (KW)	No load Current (%)
10000	69	6.3 6.6 10.5 11	YNd11	9	12.1	47.6	0.75
12000					12.6	56.5	0.53
15000					15.1	69.5	0.49
20000					17.9	84.2	0.49
25000					21.1	99.5	0.42
30000					25.1	120	0.42
37500					30	140.3	0.39
50000					35.4	174.3	0.39
60000					42.1	210	0.39

Technical Data for 69KV Class Three Phase Two Winding NLTC Power Transformer

(KVA) Rated Power	(KV) High Voltage	(KV) Low Voltage	Connection Symbol	Short Circuit Impendence (%)	No-load Loss (KW)	On-load Loss (KW)	No load Current (%)
10000	69	6.3 6.6 10.5 11	YNd11	9	11.6	47.6	0.75
12000					13.6	56.5	0.53
15000					16.3	69.5	0.49
20000					19.2	84.2	0.49
25000					22.6	99.5	0.42
30000					26.8	120	0.42
37500					31.9	140.3	0.39
50000					38.6	174.3	0.39
60000					44.4	210	0.39

Technical Data for 115KV Class Three Phase Two Winding OLTC Power Transformer

(KVA) Rated Power	(KV) High Voltage	(KV) Low Voltage	Connection Symbol	Short Circuit Impendence (%)	No-load Loss (KW)	On-load Loss (KW)	No load Current (%)
10000	115 138 161	6.3 6.6 10.5 11	YNd11	10.5	11.8	51.2	0.82
12000					13.7	59.5	0.82
15000					16.3	73.1	0.76
20000					19.5	88.4	0.76
25000					22.7	105	0.69
30000					27.4	126	0.69
37500					32.9	148	0.63
50000					38.9	184	0.63
60000					46.4	221	0.57

Technical Data for 115KV Class Three Phase Two Winding NLTC Power Transformer

(KVA) Rated Power	(KV) High Voltage	(KV) Low Voltage	Connection Symbol	Short Circuit Impendence (%)	No-load Loss (KW)	On-load Loss (KW)	No load Current (%)
10000	115 138 161	6.3 6.6 10.5 11	YNd11	10.5	10.5	50.2	0.64
12000					12.4	59.5	0.64
15000					15	73.1	0.59
20000					17.8	88.4	0.59
25000					21	105	0.54
30000					25	126	0.54
37500					29.9	148	0.56
50000					35.3	178.5	0.52
60000					41.9	221	0.48

Technical Data for 230KV Class Three Phase Two Winding OLTC Power Transformer

(KVA) Rated Power	(KV) High Voltage	(KV) Low Voltage	Connection Symbol	Short Circuit Impendence (%)	No-load Loss (KW)	On-load Loss (KW)	No load Current (%)
30000	230	6.3 6.6 10.5 11 34.5 66	YNd11	12	30	128	0.69
37500					36	149	0.63
50000					43	180	0.63
60000					50	209	0.57

Technical Data for 230KV Class Three Phase Two Winding NLTC Power Transformer

(KVA) Rated Power	(KV) High Voltage	(KV) Low Voltage	Connection Symbol	Short Circuit Impendence (%)	No-load Loss (KW)	On-load Loss (KW)	No load Current (%)
30000	230	6.3 6.6 10.5 11 34.5 66	YNd11	12	28	128	0.7
37500					33	149	0.7
50000					39	180	0.65
60000					46	209	0.65

Transformer Test

Winding resistance	Winding insulation resistance
Core insulation resistance	Ratio
Polarity and phase relation	Insulation power factor
Control(auxiliary) cooling losses	Single-phase excitation tests
Noload losses and excitation current	Impedance voltage and load losses
Zero-phase sequence impedance voltage	Temperature rise
Low frequency dielectric tests	Low frequency dielectric tests on axiliary devices
control, and current transformer circuits	Lightning impulse

Front of wave impulse	Swithing impulse
Partial discharge	Audible sound level
Operational tests (all devices)	Dissolved gases in oil
Leak test

Sales Record

Daelim's transformers are sold to nearly 100 countries including the United States, Canada, Mexico, Ecuador, Chile, and Australia. The picture below is part of the sales record.

DAELIM BELEFIC

Daelim Belefic builds power translormers that deliver power to the consumer efficiently and reliably.

Our single-phase and three-phase winding or autotransformer are according to international standards such as ANSI/IEEE/IEC/CSA/AS as well as NEMA standards, etc, the power ratings are up to 270 MVA and for vollages up to the highest insulation class of 900 kV.

Daelim's transformers have been exported to America, Canada, Mexico, Australia, Chile, Ecuador, Venezuela, Honduras, El Salvador, Panama and other countries. DAELIM have helped many international customers to successfully obtain transformer projects and continue to carry out in-depth cooperation.

DAELIM have 20 years of transformer export experience, moreover DAELIM have after-sales installation teams overseas, so if you also have transformer business, we can develop together.

Daelim Transformer High Quality Service

a.pre-sales

Daelim has a very serious quality control system, strictly controlling every detail from transformer design to raw material procurement, assembly, testing, packaging and delivery.

b.after sales

1.Up to 24 months quality guarantee period. If there is any problem in the operation of your transformer, Daelim's after-sales team will solve it promptly and quickly;

2.Local after-sales installation service team. Whether you are in North America, South America or other regions, Daelim's local team can provide you with professional transformer installation, commissioning, maintenance and other services;

3.Daelim provides remote video guidance for transformer installation.

Thank you for reading. If you need inquiries, please contact us.

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Jiangsu Daelim Electric Co., Ltd.