INNO फाइबर ऑप्टिक तापमान सेंसर ,तापमान निगरानी प्रणाली.
ट्रांसफार्मर दबाव राहत उपकरण – PRD Safety Valve System
Automatic Overpressure Protection | Explosion Prevention | Fast-Acting Relief Valve | फ़ैक्टरी प्रत्यक्ष आपूर्ति
Responds within milliseconds
No manual intervention required
All-climate operation capability
50kVA to 10MVA+ transformers
What Is a Transformer Pressure Relief Device?
ए transformer pressure relief device (पीआरडी) is a critical safety component that prevents catastrophic transformer tank rupture by automatically venting excessive internal pressure. When internal faults generate rapid gas expansion or oil vaporization, the PRD opens instantly to release pressure buildup, protecting the transformer tank from explosive failure.
Also known as a ट्रांसफार्मर सुरक्षा वाल्व या pressure relief valve, this device acts as the last line of defense against transformer explosions caused by internal arcing faults, इन्सुलेशन टूटना, or thermal overload conditions.
Why PRDs Are Essential
Internal transformer faults can generate pressure rises exceeding 100 psi within seconds. Without proper pressure relief, this buildup causes violent tank rupture, oil fires, and severe equipment damage. Transformer explosion prevention devices उपलब्ध करवाना:
- कार्मिक सुरक्षा: Prevents dangerous tank explosions near personnel and facilities
- उपकरण सुरक्षा: Safeguards expensive transformer assets from catastrophic structural damage
- अग्नि निवारण: Controlled venting reduces risk of ignition and oil fires
- Insurance Compliance: Required by most electrical codes and insurance policies
तकनीकी निर्देश
Common models of pressure relief valves are displayed. Please contact us for more information
| नमूना | Transformer Capacity | Operating Pressure | Connection Size |
|---|---|---|---|
| PRD-50 | 50-315 केवीए | 7-10 साई | DN50 |
| PRD-80 | 315-1000 केवीए | 7-10 साई | DN80 |
| PRD-100 | 1-3.15 एमवीए | 7-10 साई | DN100 |
| PRD-150 | 3.15-10 एमवीए | 7-10 साई | DN150 |
Standard Features
- सामग्री: Stainless steel construction
- प्रतिक्रिया समय: Less than 30 मिलीसेकंड
- Reset Type: स्वचालित (spring-loaded)
- परिचालन तापमान: -40°C to +90°C
- सील: Viton/EPDM gaskets
- Mounting: Flange or threaded connection
- सुरक्षा रेटिंग: आईपी65
- मानकों: आईईसी 60076, IEEE C57.12.00
How PRDs Work
The transformer overpressure protection system uses a spring-loaded diaphragm or disc mechanism calibrated to open at predetermined pressure thresholds (आम तौर पर 7-10 साई). When internal pressure exceeds this setpoint:
- Excessive pressure overcomes spring force, lifting the relief disc
- Pressurized gas and oil vapor vent rapidly through discharge ports
- Pressure drops below threshold; spring force reseats the disc automatically
- Optional contact switches signal SCADA systems when activation occurs
PRD Operating Principle
Normal Condition
PRD Housing
Relief Disc
Spring Force
Normal Pressure
Overpressure Event
Disc Lifted
Gas Venting
HIGH PRESSURE
Pressure Force
Fault Occurs
Operation Sequence
1. सामान्य संचालन:
Spring force keeps relief disc sealed against normal pressure (0-6 साई)
2. पता लगाने के दोष:
Internal fault creates rapid pressure rise (7-10+ साई)
3. Automatic Relief:
Disc lifts, venting gas/vapor in milliseconds
4. Auto-Reset:
Spring reseats disc when pressure normalizes
Installation Guidelines
Important Safety Notice
PRD installation must be performed by qualified transformer technicians following manufacturer specifications and local electrical codes. Improper installation can compromise transformer safety.
- Mounting Position: Install vertically on transformer cover to ensure proper venting direction away from personnel and equipment
- निकासी आवश्यकताएँ: Maintain minimum 3-foot radius clear zone around discharge path
- Torque Specifications: Follow manufacturer torque values for flange bolts to prevent oil leaks
- विद्युत कनेक्शन: Wire optional alarm contacts to monitoring systems using shielded cable
- परीक्षण: Never test PRD operation while mounted on energized transformer
अनुप्रयोग
हमारा transformer pressure relief valves रक्षा करना:
- वितरण ट्रांसफार्मर (50केवीए – 3.15एमवीए)
- बिजली ट्रांसफार्मर (3.15एमवीए – 100एमवीए+)
- सबस्टेशन ट्रांसफार्मर
- जेनरेटर स्टेप-अप ट्रांसफार्मर
- Industrial plant transformers
- Mobile/temporary transformers
Why Choose Our PRDs?
🏭 Factory Direct Pricing
Competitive wholesale rates with volume discounts for projects requiring multiple units.
✓ Quality Certified
आईईसी 60076 and IEEE C57.12.00 compliant. आईएसओ 9001 manufacturing facility.
🚚 Fast Delivery
Standard models ship within 7-10 कार्य दिवस. Global freight forwarding available.
🔧 Custom Solutions
Specialized pressure setpoints, flange configurations, and alarm contact options available.
अक्सर पूछे जाने वाले प्रश्नों
How do I select the correct PRD size for my transformer?
PRD sizing is based on transformer capacity (kVA/MVA rating). Use PRD-50 for 50-315kVA, PRD-80 for 315-1000kVA, PRD-100 for 1-3.15MVA, and PRD-150 for 3.15-10MVA transformers. For transformers above 10MVA or special applications, contact our engineering team for custom sizing calculations.
Does the PRD require periodic replacement or maintenance?
PRDs are maintenance-free during normal operation. तथापि, after any activation (pressure relief event), the device should be inspected for seal integrity and proper reset. Replace gaskets if oil leakage is detected. We recommend visual inspection annually during transformer maintenance outages. Typical service life is 15-20 years without activation.
Can PRDs be tested without removing from the transformer?
नहीं. Never attempt to test PRD operation while installed on an energized or oil-filled transformer. Testing requires controlled bench conditions using specialized pressure test equipment. PRD functional verification should only be performed by qualified technicians following manufacturer procedures in a workshop environment.
Request Your PRD Quotation Today
🏭 Manufacturing Facility:
लियानडोंग यू ग्रेन नेटवर्किंग इंडस्ट्रियल पार्क
नंबर 12 ज़िंगे वेस्ट रोड, फ़ूज़ौ, फ़ुज़ियान प्रांत, चीन
फाइबर ऑप्टिक तापमान सेंसर, बुद्धिमान निगरानी प्रणाली, चीन में वितरित फाइबर ऑप्टिक निर्माता
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