IGS-NT Installation Guide
74
G
I1k I1l
I3k I3l
I2k I2l
K L
k l
L1
L2
L3
N
Ink Inl
K L
k l
K L
k l
L
K
l
k
The simplest arrangement covers all zones from the
generator windings to the final circuits in the load
network.
G
L1
L2
L3
N
Ink Inl
k l
k l
k l
k l
This arrangement covers earth faults in the load
network only.
G
L1
L2
L3
N
Ink Inl
L
K
l
k
k l
k l
k l
k l
K L
This arrangement necessary for restricted earth fault
protection. The location of the neutral earthing point in
relation to the protection current transformers in the
neutral conductor determines whether four or five
current transformers are employed.
G
L1
L2
L3
N
Ink Inl
k l
k l
k l
k l
This arrangement necessary for restricted earth fault
protection. The location of the neutral earthing point in
relation to the protection current transformers in the
neutral conductor determines whether four or five
current transformers are employed.
Summary of Contents for IG-NT
Page 24: ...IGS NT Installation Guide 24 5 2 3 InteliVision 5 5 2 4 InteliVision 8...
Page 75: ...IGS NT Installation Guide 75 9 Recommended Wiring 9 1 SPtM application...
Page 76: ...IGS NT Installation Guide 76 9 2 SPI application...
Page 77: ...IGS NT Installation Guide 77 9 3 MINT application...