Product Introduction
We have customized a 1000KVA 33/0.415 Kv Transformer for Ethiopian clients, featuring a high input voltage of 33KV and a low output voltage of 0.415KV. Given the potential instability of Ethiopia's national power grid-with high voltage fluctuating between 36KV and 26KV-conventional 33/0.415KV transformers fail to adapt to such grid voltage variations. To address this challenge, Hebei Hozee Electric has specially developed a transformer equipped with a 14-level automatic on-load tap changer for the client. Post-installation, the client feedback indicated that this custom-designed 33/0.415 Kv Transformer performs exceptionally well in adapting to grid fluctuations and maintaining stable output voltage.
Hozee Electric adheres to stringent quality management and process control to ensure every delivered transformer meets quality standards, achieving a 100% pass rate in acceptance tests. To date, we have maintained a factory zero-failure record, earning high recognition from clients and the market. Our single-phase transformers are designed in compliance with major international standards, including
Scope of Supply
Product: Distribution transformer
Number of phases: 3 phase
Rated power: 30-40000 kva distribution transformer
Primary voltage: 33KV
Secondary voltage: 415V
Vector Group:YD11,DYn11,YND11
Customizable production：yes
33KV Transformer Application Scenarios
Large scale manufacturing industries：
such as steel plants, cement plants, chemical plants, etc., have numerous production equipment and consume a large amount of electricity.
Mining:
In coal and metal mining operations, reliable power support is required for ventilation equipment, lifting equipment, drainage equipment, and beneficiation equipment.
Large Commercial Complexes:
Urban landmarks like shopping malls and office buildings house lighting, air conditioning, elevator systems, and various commercial equipment, all with high power load demands that our transformers can efficiently support.
Hospitals and Schools:
Hospitals need stable power for medical devices such as CT scanners and MRI machines, while schools require reliable electricity for classrooms, laboratories, and libraries. The 33/0.415 Kv Transformeredical services and educational activities.
Regional Power Supply:
In urban power grids, 33KV high-voltage electricity transmitted from power plants or higher-voltage substations is stepped down by our transformers and distributed to residential, commercial, and industrial areas, meeting diverse user needs and enabling efficient power allocation.
Grid Optimization and Expansion:
With urban development and growing electricity demand, 33KV transformers can be flexibly integrated into power grids for optimization and expansion. This enhances power supply capacity, improves power quality, reduces energy loss, and strengthens grid stability and reliability.
Product advantages
Hozee's 33kV-415V transformers inherit the inherent advantages of this equipment type and gain differentiated competitiveness through technological upgrades, scenario adaptation, and comprehensive service guarantees. Core advantages include:
1, Ultimate Energy Efficiency, Reducing Losses by an Additional 10%
Adopting B23P080 high magnetic induction silicon steel sheets and stepped winding technology, no-load loss is 10% lower than the industry average. The 1600kVA model can save up to 12,000 kWh annually. Equipped with a low-power cooling structure, load loss is controlled between 0.8% and 1.5%, making it ideal for high-load continuous operation scenarios.
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2, Customized Adaptation to Complex Environments
For harsh environments such as high temperatures and sandstorms, oil-immersed products use anti-corrosion fluorocarbon coatings and wide-spacing radiators. Dry-type products are upgraded to IP55 protection, resisting dust and low-pressure water spray to meet strict industrial-grade requirements.
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3, Reliable Safety Redundancy Design
The insulation system adopts NOMEX paper + insulation oil composite insulation (withstand temperature of 155℃), and the 33kV side power frequency withstand voltage is increased to 80kV. Short-circuit impedance is precisely controlled at 5% ± 0.5%, capable of withstanding 25 times the rated current impact. A built-in intelligent temperature control module supports dual monitoring of oil temperature and winding temperature, with a response speed 30% faster than industry standards.
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4, Full-Cycle Service Coverage
PWe provide end-to-end services from product selection and installation to operation and maintenance.
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5, High Cost-Effectiveness and Compliance Assurance
Localized assembly reduces costs, and our products hold CE and ISO certifications, compatible with multiple national grid standards to achieve "one-time procurement, global applicability."
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Technical Specification for 3 phase Transformer
|
Model |
S-M-1000kVA-33/0.415 |
|
Type |
Oil Immersed Power Transformer |
|
Standard |
IEC60076 |
|
Rated Power |
1000kVA |
|
Frequency |
50HZ |
|
Phase |
Three |
|
Cooling Type |
ONAN |
|
Primary Voltage |
33 KV |
|
Secondary Voltage |
0.415KV |
|
Winding Material |
Copper |
|
Vector Group |
Dyn11 |
|
Impedance |
6.5% |
|
Tap Changer |
OLTC |
|
Tapping Range |
±7*3% @ Primary Side |
|
No Load Loss |
1.44 KW |
|
On Load Loss |
12.15KW |
|
Accessories |
Standard Configuration |
Transformer drawings
▼ 14 level on load tap changer voltage regulation range and current：
TRANSFORMER SPECIFICATION FOR 1000KVA,33/0.415KV
DESCRIPTION OF GOODS
TRANSFORMER 1000KVA,33/0.415KV
Dyn11,50Hz,Oil immersed transformer,Copper
14 level on load tap changer switch position
HIGH VOLTAGE LOW VOLTAGE
|
VOLTAGE(V) |
CURRENT(A) |
VOLTAGE(V) |
CURRENT(A) |
|
|
1 |
36000 |
16 |
415 |
1391.2 |
|
2 |
35000 |
16.49 |
||
|
3 |
34000 |
16.98 |
||
|
4 |
33000 |
17.49 |
||
|
5 |
32000 |
18 |
||
|
6 |
31000 |
18.62 |
||
|
7 |
30000 |
19.24 |
||
|
8 |
29000 |
19.9 |
||
|
9 |
28000 |
20.62 |
||
|
10 |
27000 |
21.38 |
||
|
11 |
26000 |
22.2 |
||
|
12 |
25000 |
23.09 |
||
|
13 |
24000 |
24.05 |
||
|
14 |
23000 |
25.1 |
Gas Relay：
Also known as a Buchholz relay, it is a critical protective device for oil-immersed transformers. It monitors gas accumulation and oil flow changes caused by internal equipment faults, issuing timely alarm or trip signals to prevent fault escalation.
Oil Level Gauge：
The YZF₂-140TH oil level gauge is a magnetic-type gauge widely used in oil-immersed transformers. It intuitively displays the internal oil level via a dial pointer. When combined with other operating parameters such as oil temperature and load, it enables comprehensive evaluation of the transformer's operational status.
FAQ
Q: As a partner, how can you support us?
A: We offer competitive pricing, premium services, and supporting documents including quotations, technical data sheets, drawings, reference lists, manufacturing plans, quality control plans, testing plans, and test reports.
Q: Where is your main market?
A: Our transformers are exported to over 30 countries worldwide, with core markets covering African, North & South American, and Asian countries.
Q: Why choose HOZEE?
A: We are an experienced transformer supplier with a professional engineering team and comprehensive customer service, ensuring reliable product quality and seamless cooperation.
Q: What is your scope of supply?
A: We provide distribution transformers up to 5000KVA/35KV, power transformers up to 200MVA/230KV, dry-type transformers up to 10MVA/35KV, and special transformers such as rectifier transformers and furnace transformers.
Q: May I visit your company?
A: You are welcome to visit our company at any time. Please contact us to arrange your trip and start our cooperation journey.
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