167 KVA Power Transformer On Pole
Description
Technical Parameters
Henan GNEE Electric Co., Ltd. is one of the leading manufacturers and suppliers of 167 kva power transformer on pole in China, also supports customized service with low price. Welcome to buy discount 167 kva power transformer on pole for sale here from our factory. If you have any enquiry about pricelist, please feel free to email us.
Product Introduction
A power pole transformer is a medium-capacity electrical solution designed for overhead power distribution. Ideal for residential, commercial, or light industrial use, it steps down high-voltage utility power (ranging from 2.4 kV to 35 kV) to safer low voltages like 120/240V for end-users. Built with an oil-immersed or dry-type design, it features high-efficiency cores and copper windings to minimize energy loss. Mounted on utility poles, its compact structure saves ground space while ensuring reliable performance. Equipped with safety features like fuses and lightning arresters, it withstands outdoor conditions, providing stable power supply for neighborhoods, small businesses, or rural electrification projects.
Should you require further details, our team is available at sales@gneesteels.com to provide personalized support.
Product video
transformer pole mounted Technical specification
General Assembly Drawing
maintenance of 167 kVA power transformer on pole
Routine Maintenance Tasks
Visual Inspections
Check for corrosion, cracks, or oil leaks on the 167 kVA power transformer on pole tank and bushings.
Inspect terminals for loose connections, burns, or oxidation (common signs of faults).
Verify that the grounding system is secure and free of damage.
Oil Level and Condition
For oil-filled transformers:
Monitor the oil level in the conservator or sight glass (ensure it matches the temperature chart).
Test the insulating oil annually for:
Moisture content (should be <20 ppm for new oil).
Dielectric strength (should exceed 30 kV in standard tests).
Gas chromatography (to detect dissolved gases indicating internal faults).
Electrical Tests
Insulation Resistance (IR) Test: Measure resistance between windings and ground to identify moisture or degradation.
Winding Resistance Test: Check for loose connections or conductor damage using a low-resistance ohmmeter.
Transformer Turns Ratio (TTR) Test: Ensure the voltage ratio matches design specifications.
Cooling System Checks
For oil-immersed units:
Clean radiators/fins to remove dust or debris that may impede heat dissipation.
Verify that the breather (if present) is unclogged and the desiccant is dry (replace if discolored).
Protective Devices
Inspect fuses (primary cutouts) for signs of arcing or damage; replace if blown or worn.
Test lightning arresters for proper operation (e.g., using a surge arrester tester).
Ensure pressure relief valves are unobstructed and functional.
Environmental and Safety Checks
Clear vegetation around the pole base to prevent fire hazards or accidental contact.
Check for loose hardware (bolts, clamps) on the pole or transformer mount.
Confirm that the transformer on utility pole is securely fastened and aligned on the pole.
Periodic Maintenance (Every 3–5 Years)
Load Tap Changer (LTC) Maintenance (if equipped):
Inspect and clean tap changer mechanisms; test for smooth operation.
Noise and Vibration Analysis:
Monitor for unusual hums or vibrations (may indicate core looseness or winding issues).
SFRA (Frequency Response Analysis):
Detect mechanical damage to windings (e.g., from short circuits or transportation shocks).
Emergency Maintenance Triggers
Oil Leaks: Address immediately to prevent fire risks or insulation failure.
Overheating: Signs include discolored paint, burning smells, or tripped fuses.
Abnormal Noise: Loud buzzing, hissing, or crackling may signal internal arcing.
Failed Tests: If IR, oil, or voltage tests fail to meet standards, schedule repairs or replacement.
Best Practices
Always perform maintenance by qualified technicians with proper PPE and fall-arrest equipment (due to elevated installation).
Maintain detailed records of tests, repairs, and replacements for compliance and lifecycle management.
In harsh environments (coastal, industrial), increase inspection frequency to combat corrosion.
By following these procedures, transformers on pole can operate efficiently and safely for their full design lifespan (20–30 years). Regular maintenance minimizes downtime, reduces energy losses, and ensures compliance with electrical codes.
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For more detailed information, we' d love to hear from you! Reach out to our team at sales@gneesteels.com.
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