ड्राई-टाइप ट्रांसफार्मर के चयन और तकनीकी मापदंडों के लिए एक व्यापक मार्गदर्शिका: 10 मुख्य बिंदु जिन्हें इंजीनियरों और खरीददारों द्वारा नज़रअंदाज़ किए जाने की सबसे अधिक संभावना है

In practical projects, the problem of selecting the wrong model for शुष्क प्रकार के ट्रांसफार्मर is very common.

The capacity is sufficient, but the temperature rise exceeds the standard;
Voltage matching, but noise is not qualified;
Parameter compliance, but overseas acceptance failed.

This article will delve into the most critical but easily overlooked technical details of dry-type transformers from the perspective of engineering selection.

1.क्षमता चयन: You cannot just look at kVA

1.1 Continuous load and intermittent load

Dry-type transformers are highly sensitive to ambient temperature and require appropriate derating in the following scenarios:

• high altitude
• high temperature environment
• Closed computer room

1.2 Overload Capacity Assessment

The short-term overload capacity of epoxy cast शुष्क प्रकार के ट्रांसफार्मर is significantly weaker than that of oil immersed transformers, and the load curve needs to be evaluated in advance.

2.Voltage level and wiring group

Common combinations:

• 10के.वी / 0.4के.वी
• 20के.वी / 0.4के.वी

The wiring group should match the system protection logic, such as:

• Dyn11
• हाँ0

3.Insulation level and temperature rise design

When choosing, consider long-term operating temperature rather than short-term limits.

4.Selection of cooling method

एक: Natural cooling, कम शोर
का: Forced air cooling, capacity can be increased by 30-40%

But the reliability and maintenance of the fan also need to be taken into consideration.

5.Partial discharge level

High quality dry-type transformers typically require:

• Partial discharge ≤ 10 pC

This is one of the core indicators for overseas project acceptance.

6.Noise control

Noise often becomes a veto in data center and commercial building projects.
Attention should be paid to:

• core structure
• Shock absorption design
• Installation foundation

7.Protection level and environmental adaptability

Common levels:

• IP00 (indoor)
• IP23/IP31 (anti drip, anti foreign object)

8.Energy efficiency and loss indicators

Critical loss parameters:

• no-load loss
• भार हानि

The EU and North American markets have particularly strict requirements for this.

9.मानकों, certifications, and documents

Common requirements:

• आईईसी / आईईईई
• सीई
• ISO system documents

10Hidden risks of export projects

Wooden crate packaging standard
Shipping moisture prevention
Technical document language

Dry-type transformers are not necessarily “the better the parameter table, the safer it is”, but rather highly coupled system equipment with application scenarios.
The truly professional selection is a comprehensive reflection of technical understanding, engineering experience, and standard awareness.

लुओयांग डेटांग एनर्जी टेक्नोलॉजी कंपनी, लिमिटेड. आर को एकीकृत करने वाला एक उच्च तकनीक उद्यम है&डी, ट्रांसफार्मर जैसे बिजली उपकरणों का निर्माण और आपूर्ति, नये ऊर्जा घटक, वितरण अलमारियाँ और इनवर्टर. तकनीकी नवाचार को मूल में रखते हुए, हम वैश्विक ग्राहकों की सेवा के लिए उच्च-विश्वसनीयता और उच्च-प्रदर्शन वाले पावर समाधान बनाने पर ध्यान केंद्रित करते हैं. सख्त गुणवत्ता नियंत्रण प्रणाली और अंतरराष्ट्रीय मानक प्रमाणीकरण के साथ, हम उत्कृष्ट उत्पादों का उत्पादन जारी रखते हैं और ग्राहकों को सुरक्षित और स्थिर बिजली प्रणाली बनाने में सक्षम बनाते हैं.