Hitachi Relion 650 Series Technical Manual page 394

Section 14
Basic IED functions
Table 358: Application selection
Setting name
LoadType
Grounding
Table 359: Load type selection for reactors and transformers
Actual load type
Reactor
Reactor
Reactor
Transformer
Transformer
Transformer
Transformer
Transformer
Transformer
Table 360: Grounding options
Source Grounding
Ungrounded
Solidly grounded
Solidly grounded
Solidly grounded
388
Description
This setting specifies the connected load.
Available options are:
• Capacitor
• Reactor
• Coupled reactor
• Power transformer
• Coupled transformer
• Transmission line/power cable
Refer to Table 359 for further selection of the load type for reactors and transformers.
For all load types, this setting specifies the effective grounding of both system and load.
Available options are:
• Star grounded
• Ungrounded / Delta
• Impedance grounded (only for reactor and transformer load types)
See Table 360 for details.
Core configuration
Individual bank
Common core 4/5-limb
Common core 3-limb
Individual bank
Common core 4/5-limb
Common core 3-limb
Individual bank
Common core 4/5-limb
Common core 3-limb
Load connection (of primary
winding for transformers)
any
Star connected, solidly grounded
(Yn)
Ungrounded star (Y) / Delta (Δ)
Star (Y) connected, grounded
through neutral reactor or neutral
resistor
For the purpose of controlled switching, "primary winding" of a transformer refers to
the winding that is switched under point-on-wave control.
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Secondary/ Tertiary
winding
n/a
n/a
n/a
No delta winding
No delta winding
No delta winding
At least one winding is
delta connected
At least one winding is
delta connected
At least one winding is
delta connected
Grounding in ANSGPROC
Ungrounded/Delta
Star grounded
Ungrounded star / Delta
Impedance grounded
1MRK 511 557-UEN Rev. A
LoadType in ANSGPROC
Reactor
Reactor
Coupled Reactor
Power transformer
Power transformer
Coupled transformer
Coupled transformer
Coupled transformer
Coupled transformer
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