Toshiba GR 200 Series, Instruction Manual

Page: 918 / 1563

6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 897 -
5.1.2
Type using ring terminals
(i)
1/1 size case
Figure 5.1-2 shows diagrams of the 1/1 size case constructed with type using ring terminals:
(a) IED internal structure seen from the front, (b) Terminal block arrangement seen from the
rear, and (c) schematic diagram.
Viewing from the front side (Figure 5.1-2.a)
Slots are provided for mounting modules. A transformer module (VCT), a signal processing and
communication module (CPU), and a power supply module (PWS) are mounted at predefined
locations in the case. Binary IO modules (BI, BO, and BIO) are placed in slots (IO#1 to IO#7),
these slot locations are determined before factory shipment. For detailed information on slot
locations, module types and their connections for all IEDs, see external connection figures. (See
Appendix: Typical external connection
).
Viewing from the rear side (Figure 5.1-2.b)
The terminal blocks for the case viewed from the rear is shown. They are labeled with alpha-
numeric reference “T1”, “T2” and so on. Terminal screw numbers relate to circuits individually,
and the user has to check their circuits (see section 5.4 or later). A BIO module is identified by
its alpha-numeric reference (or slot reference) on the IED case. For example, the user can
identify that slot “IO#1” is linked with alpha-numeric reference “T1”.
PWS terminal block is placed on the far left side; hence, the user finds it with alpha-
numeric reference “T8”. That circuit is discussed later (see section 5.5)
Communication modules, which are between VCT and BIOs, are labeled with “C11” to
“C15”. Those are used for LAN, IEC61850 communication, etc.
Schematic figure (Figure 5.1-2.c)
A schematic figure illustrates the location of slots and terminals: VCT, BIOs, and PWS. The
figure is useful when the user need to set BIO modules using their setting tables (see section
5.4).