7.3. Structural diagram of the current unit (БТ)

16

7.3.1. Actual circuit

Note: Element designations on the diagram (Д1, Д5, Кпз) are kept

 in original Russian layout.

7.3.2. According to adjustment data
ΔUосIf = 10V at Δif = 3850/0.817 by AC current
In relative units by DC current   Δif* =
3850
1750
Kотс.б=
ΔUосIf
Δif*
=
10·1750
3850
=4.62
7.3.3. Gд1(p)=
1
1+p·Tд1
; Tд1=0.47·10-6·
51
2
·103=0.012s
7.3.4. Gд5(p)=
p·T0д5
(1+p·Tд5-1)(1+p·Tд5-2)
T0д5=0.47·10-6·200·103=0.094s
Tд5-1=0.47·10-6·51·103=0.024s
Tд5-2=0.47·10-6·200·103=0.094s
7.3.5. Kпз =
3
5
=0.6 (Position of the switch "Iв"-10)
7.3.6. Gбт(p)=Kдтв·Kпз·Gд5(p)·Gд1(p)=
=
Kотс.б·p·T0д5·Kпз
(1+p·Tд1)(1+p·Tд5-1)(1+p·Tд5-2)
  V/pu
Kпз·T0д5·Kдтв = 0.6·0.94 · 4.62 = 0.26