SMS SHZV - Technical Data; Type SHZV On-Load Tap Changer Technical Data

HM0.460.3901
11
3. Technical data
SHZV tap-changer complies with IEC 60214-1: 2014 standard.
3.1 Type SHZV On-Load Tap Changer Technical Data
Item
Description
SHZVIII SHZVI
1
Max. rated through current (A) 400*
600
*
1000
1300
400 600
1000
1200
*
1500
*
1600
2400
3000
2
Rated frequency (Hz) 50 or 60
3
Connection
3-phase Y-connection
for neutral point only
Single-phase for any selectable
winding connection
4
Max. rated step voltage (V) 4000
5
Rated step capacity 1500 1600 3000
3300
1500
1600
3000
3000
4000
4400
5600
6000
6
Short-circuit
current test
(kA)
Thermal (3s)
6
8 12
15
6
8 12
24
24
24
24
30
Dynamic (peak)
15
20 30
37.5
15
20 30
60
60
60
60
75
7
Max. operating positions 18 without change-over selector; 35 with change-over selector
8
Insu
lation
to
ground
The highest voltage
for equipment (kV)
72.5 126 170
2
52 362
Rated separate source AC
withstand voltage
(kV/50Hz,1min)
140 230 350 260 550
Rated lightning impulse
withstand voltage
(kV,1.2/50μs
350 550 750 1050 1175
9
Tap
selector Categorized into B, C, D & DE four sizes
10
Mechanical life Not less than 1,500,000 operations
11
Electrical
life Not less than 600,000 operations
12
Oil compartment
of diverter switch
Service
pressure
0.03 MPa
Leakage test
No leakage under 0.08 MPa for 24 hours
Over
pressure
protection
Rupture disc bursts at 300 ± 20% KPa
Protective
relay
Set oil flow speed at 1.0m/s ± 10%
13
Motor drive unit SHM-D or CMA7
Note:
1) SHZV with cylinder tap selector is applicable for the contact pitches of 10, 12 and 14 in linear, reversing and
coarse and fine regulating.
2) SHZV with cage tap selector is applicable for the contact pitches of 12,14,16 and 18 in linear, reversing and coarse
and fine regulating.
3) Marked* indicate that these tap changer’s Max operating positions can be 35 without change-over selector 107
with change-over selector.
Table3-1 Type SHZV (Cylinder Tap Selector) Series of On-Load Tap Changer Technical Data
.