No Toxic Gas Dry Type Distribution Transformer Low Partial Discharge 22kV - 1250 KVA

Basic Information
Place of Origin: China
Brand Name: Pearl Electric
Certification: KEMA, CE, CCC, ISO9001
Model Number: PEC-S, SC(B) 9-15
Minimum Order Quantity: 1 unit
Price: USD/RMB
Packaging Details: Seaworthy wooden packing
Delivery Time: 30days-50days ex-work
Payment Terms: T/T, L/C
Supply Ability: 9000 units per year
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Cooling: AN Or Customized Capacity: 1250KVA Or Customized
Rated H. V.: 22Kv Or Customized Rated L. V.: 0.433kv Or Customized
Impedance: 6% Or Customized Insulation Level: H. V.: Li/AC 75/28 L. V.: 0/3
High Light:

dry type power transformer


dry cast resin transformers

 22kV - 1250kVA Cast Resin Dry Type Transformer, Three Phases, Two Winding, Power Distribution



 Cast Resin Dry Type Transformer, Low Noise, Low Loss and Low Partial Discharge.

  1. Flameproof and no blast, no pollution, no venomous gas.  Pearl has passed F1 test qualified by authority lab. 
  2. High dampproot, Safe operation in 100% vilative humidity and other tough environment, no demoisture procedure is needed.
  3. Strong capacity of heat resistant.
  4. High over-load capability, running at 110% rated load, and 150% rated load at AF.
  5. Contour artistic and compact size, low cost for installing. Easy assembly.
  6. Performance and parameter conform to or excel the standards of GB, IEC or industry.

Accessory for cast resin dry type transformer




The standard transformers is without enclosure, IP00 class. Type with enclosure is with  protection level is IP20. 


Temperature controller


Temperature controller is equipped as per required. They can be installed on the transformer boday or wall of IP enclosure and reliable and convenient for users to check.

Instruction for putting into Service

For on-load tap-changing transformers, please refer to the on-load tap changer Operation Manual. First, adjust the tap changer with the transformer switched off; if all indications are normal, then switch on the transformer.


1 Transformer with temperature control box and temperature indicator, please refer to respective operation manuals for detailed operation descriptions. After the temperature control box and temperature indicator is adjusted and all indications are normal, first switch on the transformer, then the temperature control box and temperature indicator.


2 Transformer should be switched on with no load. The peak switching inrush current could reach 10 times of the rated current. The fast motion protection set value should be higher than the switching inrush current.


3 When first switching on, avoid heavily loading the transformer. Beginning with a light load and increasing to a heavier load. While switching on the transformer, check for any abnormal noises.


4 Overload operation of the transformer should comply with IEC905 LOADING GUIDE FOR DRY-TYPE POWER TRANSFORMERS or the over-load curve in our Technical Manual.


5 The transformer can be switched on immediately after a period of service interruption. However, if humidity is high and condensation appears on the winding surface, the transformer can be operated again only after it is dried.


No. Items Unit  
I Basic Information       
1 Rated Voltage ratio kV 22kV / 0.433 kV
1.01 Rated Capacity kVA 1250
1.02 Applicable Standards   IEC 60076
1.03 Manufacturer   Pearl Electric
1.04 Country of Origin   China
II Electric Performance       
2.01 Rated Power kVA 1250
2.02 HV kV 22
2.03 LV kV 0.433
2.04 Frequency Hz 50
2.05 Number of phase   Three
2.06 Insullation Class   Class H
2.07 Temperature Rise (@40℃ ambient temperature) K 125K
2.08 Cooling Method   AN
2.09 Tapping Ranging   ±2*2.5%
2.1 Vector Group   Dyn11
2.11 Noise level dB 55
2.12 Impedance % 6
2.13 No-load loss W 2150
2.14 Load Loss (@120℃) W 11300
2.15 Local Partial discharge pC <10PC
2.16 Impulse Withstand Voltage (HV/LV) kV 75/0
2.17 Power Frequency Withstand Voltage
kV 28/3
2.18 Rated Duration of Short Circuit s 2
4.02 Total mass (without enclosure) kg 3030

2 Applied Standard
GB/T10228 , GB1094.11 , IEC60076-11 , DIN42523
 No Toxic Gas Dry Type Distribution Transformer Low Partial Discharge 22kV - 1250 KVA

Contact Details

Phone Number : 86-020-22626603

WhatsApp : +008618826241798