10KV CAST RESIN DRY TYPE DISTRIBUTION TRANSFORMER

MAIN FEATURES

· Low loss, low noise, low partial discharge and high reliability.

· Great anti-short circuit capability

· High anti-lightning impulse capability.

· Anti-lightning capability.

TECHNICAL DATASHEET

GENERAL OUTLINE DRAWING

CRT TECHNOLOGY

MAGNETIC CORE

The core is made of high quality grain-oriented cold-rolled silicon steel of high magnetic conductivity, by using 45°five-step over- lapping method to reduce the no-load loss and no-load current. Simulation analysis method is applied for the core design, thus to precisely and effectively calculate the vibration frequency and scale. Flexible connections are adopted between the core and coils, core and clamps. With the these measures, transformer's noise level has been improved by 10~15dB over the convention- al products.

(LV) - LOW VOLTAGE WINDINGS

For LV coils above 400kVA capacity, superior foil conductors are adopted for winding manufacturing, thus to obtain better amper-turn balance and less transverse magnetic flux leakage, and finally to greatly improves transformer's anti-short circuit capability. By reasonably designing the oil passage within the coils, coil's heat dispersion effect is greatly increased. Thus the reasonable design has decreased temperature rise and improved product's overload capability.

(HV) - HIGH VOLTAGE WINDINGS

HV and coils is manufactured with superior wire conductors, insulated reinforced with fiber glass. The HV coils are cast under vacuum and high pressure conditions in Germany HÜBERS Vacuum Cast Machine, resulting the best resin penetration and very low partial discharge (partial discharge for 11kV product could be lower than 5pC). Optimized structure is adopted for HV coils to improve transformer's electric field. And Lightning impulse simulation calculation was adopted for coil model design, thus to substantially improve product's anti-lighting capability.

APPLICATION

Cast resin transformers can be used in a wide range of applicationsr for distribution systems, power production, rectification, traction and for special solutions.

The Cast Resin Dry Type Transformer provided by Pearl Electric mainly used in:

· SERVICE SECTOR

· INFRASTRUCTURES

· DATA CENTER

· INDUSTRY

MAJOR TEST REPORTS

For all products design and manufacturing by Pearl Electric could fulfill all the routine, type and special test items specified by IEC standards, with the only exception of short-circuit withstand test.

KEMA TEST REPORT	CE TEST REPORT	CCS TEST REPORT