72.5kv 40mva Mobile Substation

• Application: Power
• Phase: Three
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001-2000
• Model NO.: MS40000
• Usage: Combined Transformer
• Frequency Characteristics: High Frequency
• Transport Package: Container
• Specification: 40mva
• Trademark: HEMG
• Origin: China
• Production Capacity: 50

Product Description

TECHNICAL SPECIFICATIONS            BASIC DATA
a     BRAND         HEMG

1.     SUPPLY DATA             

b.1  MODEL         HGIS
b.2  SWITCH TYPE       ZHW-72.5KV
b.3  QUANTITY            1
b.4  YEAR OF MANUFACTURE           2019

1.      MANUFACTURING STANDARD          IEC 62271-205, 62271-108, IEC 60694 Ed. 2.2
2.     THE SWITCH FEATURES            

d.1  Number of phases 3     3
d.2  Frequency            50HZ
d.3  Max System voltage            72.5kv
d.4  Nominal operating voltage        63KV
d.5  Internal insulation (BIL wave discharge 8/20 µs)              325KV
d.6  External insulation (BIL wave discharge 8/20 µs)             325KV
d.7  Creepage (Creepage distance)          31MM/KV
d.8  Nominal current          1250A
d.9  Short circuit (3 seconds)             31KA/3S
d.10 Noise level            74DB
d.11 Mounting height          1000M
d.12 Degree of seismicity           0.5g
d.13 Installation           Outdoor  on the Platform
d.14 Maximum wind speed         100km/h
d.15 Degree of pollution             IV
d.16 Relative humidity         100%
d.17 Temperature        − 15° C to + 50 ° C
d.18 Wrap switch, disconnector, and TC           SF6
d.19 Middle of the arc          SF5

1.     SWITCH COMPONENTS           

e.1   Three phase switches          Open-closed - grounded
                      Adjacent to the switch
e.2   Current per phase transformers         One for measuring,
Two for protection
e.3   Control cabinet            included
e.4   Connectors           500 MCM
e.5   Galvanized steel structure          included
(f).   BASIC CHARACTERISTICS OF THE SWITCH     
f.1   Nominal current          1250A
f.2   Nominal capacity of interruption, the effective value of the alternating component          40KA rms
f.3   Rated interruption, percentage of the DC         40%
f.4   Nominal capacity of closing short             31.5KA
f.5   Rated duration of short circuit           3S
f.6   Rated interruption in phase discordance          7.88KA
f.7   Sequence of operation        0-0.3s-CO-3 min-CO
f.8   Maximum total interrupt time            50MS