Powtier Controls MAXIWAT TC230E Series, Инструкция по эксплуатации, Страница: 3 / 8

Powtier Controls Limited TC230E Instruction Manual
230E\IM - 3 - 20 June 1998
Issue 1.0
Under normal operating conditions it is important
that the TC230E power switching unit should be
mounted VERTICALLY (as shown in figure 1
and 2), with the FAN end facing DOWNWARDS.
Also the ambient temperature should not exceed
50ºC.
If the TC230E cannot be mounted vertically or if the
ambient temperature is higher than 50ºC, please
contact your supplier or Tactical Controls directly to
determine suitability and possible operating
constraints.
PROTECTION FUSE
The integral fuse in a MAXIWAT thyristor unit is
designed primarily to protect the thyristors from any
excessive over current condition. In the event of a
fuse blowing, the replacement must be a high
speed H.R.C. fuse of an approved type.
Replacement fuses can be ordered directly from
Tactical Controls or an equivalent type can be used.
Fuse types for different current ratings are given in
Table 1.
WIRING
There are four basic load configurations to the
three-phase zero-voltage thyristor switching units;
and these are:-
Figure 1b. 3-phase, star connected load.
Figure 1c. 3-phase, 3-wire, closed delta connected
load.
Figure 2b. 3-phase, 4-wire, star connected load.
Figure 2c. 3-phase, open-delta connected load.
The basic wiring is as follow: the (LINE) terminal
must be connected to the load supply L1, L2 or L3.
One end of the load must be connected to the
(LOAD) terminal LOAD1, LOAD2 or LOAD3. The
loads can be connected in star or delta as shown in
figure 1 and 2.
When connecting the LINE and LOAD to the
TC230E, it is important to have the user connection
and internal connection right next to each other so
that the two crimps make direct contact. This is to
minimise contact resistance.
The input logic signal supply must be connected to
the terminals marked with `I/P+' and `I/P-', and
these can be connected in parallel. The
recommended minimum input cable size is 0.5mm
square.
Table 1. Fuses and fuse ratings for the TC230E
MAXIWAT range.
Current Voltage Tactical
Equivalent
Rating Rating Part no. Type
(Arms) (Vrms)
40A
240V FUS-50LET BRUSH-50LET
440V FUS-45ET BRUSH-45ET
55A 240V FUS-63LET BRUSH-63LET
440V FUS-80ET BRUSH-80ET
75A 240V FUS-80LET BRUSH-80LET
440V FUS-90EET BRUSH-90EET
100A 240V FUS-140EET BRUSH-140EET
440V FUS-140EET BRUSH-140EET
125A 240V FUS-160EET BRUSH-160EET
440V FUS-160EET BRUSH-160EET
INSTALLATION
M6 SCREW
SPRING WASHER
PLAIN WASHER
M6 NUT
PCB
USER CONNECTION
INTERNAL CONNECTION
User connection for LOAD and LINE.