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1. General Introduction
Power Range: 75 kVA – 5,000 kVA
Key Features:
Built-in fuses & switches
Elbow connectors for primary cables (hot-stick operable, enabling live maintenance)
Compliance Standards: IEC, CSA, ANSI C.57, DOE, IEEE
Core
Three-Legged Step-Lap Mitered Core
Precision-cut, burr-free grain-oriented silicon steel
Minimizes gaps for maximum efficiency
Alternative Core Types:
Five-legged wound core (for Wye-Wye configurations)
Shell-type triplex designs (special applications)
Coils
Rectangular Coil Configuration
HV Primaries: Wire-wound
LV Secondaries: Sheet-wound
Enhanced Durability Features:
Diamond-pattern epoxy-coated paper insulation
Heat-cured under hydraulic pressure for short-circuit resistance
Optimized cooling ducts for fluid circulation
Tank
Robust Construction:
Welded hot-rolled steel (pickled & oiled)
Pressure Tested:
7 psig (no permanent deformation)
15 psig (no rupture)
Sealed Design: Protects insulating fluid & internal components
ITEM
ZGSB-1500/13.8/0.4
Manufacturer
Pearl Electric Co., Ltd.
Standard
IEEE 57
Transformer Type
Pad-mount Transformer
Primary Voltage
13.8KV(H.V)
Secondary Voltage(L.V)
0.4KV(L.V)
Rated Rating
1500KVA(H.V)/1500KVA(L.V)
Temperature Rise
65°C(H.V)/65°C(L.V)
Impedance (Uk=)
4% at 1500KVA
Insulation Class
A-Class
Phase
three phase
Frequency
60hz
Cooling Way
ONAN
Insulation Liquid
Mineral oil
Winding Material
Copper
Core Material
STAINLESS STEEL
Vector Group
Dyn1
