ABB GSB 245 Technical Manual page 6

6 T R A N S F O R M E R B U S H I N G S T Y P E G S B T E C H N I C A L G U I D E
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Table 1. General specifications
For conditions exceeding the standard specification, please consult the supplier.
Application:
Classification:
Ambient temperature:
Altitude of site:
Level of rain and humidity:
Pollution level:
Immersion medium:
Max pressure of medium:
Angle of mounting:
Test tap:
Voltage tap:
Capacitance C
Conductor:
Markings:
Cenelec Technical specification
50458
Transformers
Resin impregnated paper, capacitance graded, outdoor immersed bushing,
temperature class E (120 °C) according to IEC 60137
+40 to -40 °C (-60 °C according to GOST 10693-81 in applicable parts.)
< 1000 m
1-2 mm rain/min. horizontally and vertically, as per IEC 60060-1, and 5 mm/min. as per
IEEE
According to specific creepage distance and IEC 60815
Transformer oil.
Oil temperatures for normal load:
Maximum daily mean temperature +90 °C. Maximum temporary temperature: +100 °C.
Oil temperatures for long and short time overload:
Maximum daily mean temperature +90 °C. Maximum temporary temperature: +115 °C.
100 kPa (over pressure)
Horizontal to vertical
Dimensions according to IEEE Potential tap type A. U
Dimensions according to IEEE Potential tap type A. U
of test tap: < 5000 pF
2
Center tube or flexible draw lead conductor.
Conforming to IEC/IEEE.
Yes, for GSB 245 and GSB 420
= max. 600 V
r
= 6 kV
r