ONAN / ONAF Packaged Transformer Prefabricated Substations 22 KV - Class Seaworthy Housing

Basic Information
Place of Origin: China
Brand Name: Pearl Electric
Certification: KEMA, CE, CCC, ISO9001
Model Number: PEO-S, S9~13
Minimum Order Quantity: 1 unit
Price: USD/RMB
Packaging Details: Seaworthy wooden packing
Delivery Time: 35~50days ex-work
Payment Terms: T/T, L/C
Supply Ability: 8000 units per year
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22 kV - Class , High Mechanical Strength , Container Substation Transformer , Seaworthy Housing

 

 

Introduction

 

1 Features

  1. High safety performance
  2. Functional maturation & Reliable performance
  3. Rich structure
  4. Convenient maintenance
  5. Low noise
  6. Wonderful weather resistance
  7. No-leakage

2 Applied Standards

  IEC 60076

 

Specifications:
Rated H.V.: 20 (10.5, 11, 6.3, 6) kV, ±2×2.5%
Vector Group Dyn11/Yyn0
Rated L.V.: 0.4/0.433 kV
Capacity: 50~4000
No-load Loss: 0.13~3.20kW
Load Loss 0.60~21.5kW
No-load Current: 0.6~2.3%
Impedance Voltage: 4/4.5/5.5%
Tap-changing On-load / Off-load Tap-changing
Cooling Method: ONAN/ONAF
Reference Standards IEC60076
Notes: The above specifications may be customized according to customer's requirement.
Features & Advantages
1. Low loss, low noise and high reliability.
2. Excellent dynamic thermal stability and high over-load capacity.
3. Simulation analysis was carried out for the core mould design, thus to greatly reduce noise level. Simulated lightning impulse wave process was carried out for HV winding mould design, thus to greatly improve product's anti-lightning impulse capability.
 

 

No. Item Interval Requirement Description
1 Oil-level When necessary The oil-level should be at normal position. In case of oil-leakage, the detailed causes must be found, for example, whether the bushings are broken, sealing components declines, cooling fins have small holes. After problem is solved, please append the oil.
2 Insulating oil test

1) Each 1~3 years or customer-defined interval.

2) When necessary.

Please refer to related quality standards or transformer oil maintenance guidance.
3 AC voltage withstand test

1) Each 1~5 years.

2) After overhaul

3) When necessary

1) For 10kV oil-immersed transformer, the test voltage is 30kV.

2) for 10kV dry-type transformer, the test voltage is 0.85 times of that applied during factory test.

1) Multiple-frequency induction method could be used

2) If the conditions are not allowed, only carry out externally-applied power frequency voltage-withstand test.

4 Temperature measuring device and the secondary circuit

1) Each 1~3 years.

2) After overhaul

3) When necessary

The sealing effect good and the indication are good.

The insulation resistance should not be less than 1 ohm.

Use 2500V megger to measure the insulation resistance.
5 Gas relay and its secondary circuit

1) Each 1~3 years.

2) After overhaul

3) When necessary

The settings conform to the operation regulations and it functions normally. The insulation resistance should not be less than 1MΩ. Use 2500V megger to measure the insulation resistance.

 

 

ONAN / ONAF Packaged Transformer Prefabricated Substations 22 KV - Class Seaworthy Housing

Contact Details
Sandy

Phone Number : 86-020-22626603

WhatsApp : 008618826241798