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Capacitive voltage indicator (divider)
10 Delivered VT with
fixation
The transformer can be supplied with the capaci-
—
tive voltage indicator on the request. Integrated
11 Fixation removing
voltage detection system is corresponding to Sep-
arable Voltage Detection System according to IEC
61234-5. It is integrated coupling electrode con-
nected to secondary terminal (terminal Ck). Elec-
trode acts as a capacitor between electrode and
primary winding (C1), or electrode and ground
(C2). If the electrode is connected to indication de-
vice (not part of delivery – it is part of switchgear)
it works as indication of voltage presence – more
in IEC 61234-5.
Ub (kV)
3 – 5.4
5.5 – 7.2
10 – 13.5
13.8 – 17.5
20 – 40
Tab. 3. CE capacity according to nominal voltage
Note:
voltage.
Fuses
The fuse can be a part of a supply of voltage trans-
formers with fuse. We can supply following fuses:
Rated
current (A)
0.5 – 6.3
0.5 – 6.3
2 or 4
0.3 or 0.6
(*) Available only for certain types
Tab. 4. List of offered fuses
Warning:
TJPH 5.0; TJP 6.0, have fuse contact equipped
with fixation. Fuse contact fixation is used just
for transportation. Before installation must be
removed. See picture Fig. 9. and Fig. 10.
For safety fuse replacement see Instructions for
installation, use and maintenance for Voltage (po-
tential) transformers Fuse replacement
(1VLM000614).
C1 (pF) >
30
25
20
15
10
Recommended min. capacities for nominal
Rated voltage
Length
(kV)
(mm)
12/17.5
192
24
292
36
440
12/24
255
All VT's type TJP 4.0; TJPH 4.0; TJP 5.0;
—
10
C2 (pF) >
20
20
20
20
20
—
11
External fuse holder
No special tools are needed for the installation of
external fuse holder and It can be installed in any
direction. All the necessary mounting accessories
are a part of delivery and shall be used for fixing
Striker pin
the fuse holder on the top of the VT. Maximum al-
YES*/NO
lowed torque for screw connection is 20 Nm.
YES*/NO
NO
NO
4. Instructions for use
Current and Voltage instrument transformers are
used:
• to convert large currents or voltage in the pri-
mary circuit to an appropriate level for second-
ary circuit equipment (relays and meters);
• to insulate primary and secondary circuit from
each other to protect the secondary equipment
from the harmful effects of large current or volt-
age appearing during the operation (short cir-
cuits).
The use of current or voltage transformer for
other purpose than described above is forbidden
if not agreed with the producer.
7
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