Low Loss Dry Type Electrical Transformers Energy Saving 20kV - 160 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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Core: Silicon Steel Sheet Cooling: AN Or Customized
Capacity: 160KVA Or Customized Rated H. V.: 20Kv Or Customized
Rated L. V.: 0.433kv Or Customized Impedance: 4% Or Customized
High Light:

air cooled transformer dry type


dry type power transformer

 20kV - 160kVA Cast Resin Dry Type Transformer , Three Phases , Two Winding , Power Distribution​

The product has the following advantages: 
1. High mechanical strength and strong short circuit resistance ability;
2. Effect of moisture proof and dust-proof, and enhancing level and additional value of products.
3. Advanced structure, small dimension, light weight and low partial discharge;
4. High insulation level and equal electric field distribution;
5. Easy maintainability;
6. Strong heat dissipation, run with rated load under forced air cooling;

7. Fireproof, explosion-proof, pollution-free and low-noise and able to be directly installed in the load


Energy conservation


Made by amorphous material or high permeability silicon steel, it conforms to low no-load loss and energy-saving standard requirements so that it meets the needs of low current density as well as low load loss.



The product can be universally used in places with high fireproofing requirements, such as power transmission and transformation system, high building, commercial center, sport stadium, petrochemical enterprise, metro, station and airport. The epoxy resin cast dry type power transformer has the richest manufacturing experience and the best running performance.
Packaging & Shipping
1, Wrapped with plastic film.
2, Fixed in a wooden case.
3, Wooden case on a pallet.
4, Delivery Details : 10-30 days according to order quantities
Cast Resin Dry Type Transformer, Low Noise, Low Loss and Low Partial Discharge.

I Basic Information     
1Rated Voltage ratiokV20kV / 0.433 kV
1.01Rated CapacitykVA160
1.02Applicable Standards IEC 60076
1.03Manufacturer Pearl Electric
1.04Country of Origin China
II Electric Performance     
2.06Insullation Class Class H
2.07Temperature Rise (@40℃ ambient temperature)K125K
2.08Cooling Method AN
2.09Tapping Ranging ±2*2.5%
2.1Vector Group Dyn11
2.11Noise leveldB48
2.13No-load lossW610
2.14Load Loss (@120℃)W2250
2.15Local Partial dischargepC<10PC
2.16Impulse Withstand Voltage (HV/LV)kV75/0
2.17Power Frequency Withstand Voltage
2.18Rated Duration of Short Circuits2
III Materials & Accessories     
3.01Core Materials Silicon Steel Sheet
3.02Winding Materials Copper conductor/foil
3.03Insulation methods HV vacuum cast / LV impregnant
3.04Main Insulation Materials Epoxy Resin
3.05Tap-changerpcsOff-load tap-changer
3.06Sensor for Temperature Alarm and TrippcsYes, contact provided
3.07Protective EnclosurepcsIP00

 Thermal endurance graph
When corresponding values of ln h and 1/T are plotted in a Cartesian diagram, the points will
be situated on a straight line. Such a graph is called a thermal endurance graph. An example
is shown in Figure A.2.
The experiments are made at higher temperatures than the expected temperature of the
temperature index (TI). In the example in Figure A.2 the experiments are made at four
different temperatures, 170 ºC, 160 ºC, 150 ºC and 140 ºC.
In the experiments an end-point of the material property under investigation (for example the
a.c. breakdown voltage) must be defined. The end-point may be defined as a minimum
absolute value (e.g. in kV/mm) or a percentual remaining value of the property before the
experiment started. Such end-points are suggested in IEC standards for some materials and
properties but not for all. IEC 60216-2 contains some suggestions for a number of material
properties. In other cases the definition of end-points may be subject to agreement between
supplier and purchaser of the material.
An end-point defined as for example 50 % remaining value could be perceived as ‘end of life’
for the insulation. However, this should not be taken too literally. Definition of end-points in
IEC is mainly conventional and is not functional. The deterioration of the material happens
gradually. The end-point represents no sharp limit between ‘life’ and ‘death’ of the
transformer. Reaching the end-point means only that the particular material property has been
reduced to a certain percentage of its original value, and that the safety margins and
consequently the service reliability of the transformer have been reduced in relation to a new
transformer. With respect to for example dielectric properties, the transformer may still
perform well for many years if no serious over voltages occur.
 Applied Standard
GB/T10228 , GB1094.11 , IEC60076-11 , DIN42523
 Low Loss Dry Type Electrical Transformers Energy Saving 20kV - 160 KVA

Contact Details

Phone Number : 86-020-22626603

WhatsApp : +008618826241798