1.
|
№
|
Parameters
|
ВГТ-УЭТМ®-500
|
|
1
|
Rated voltage, kV
|
500
|
|
2
|
Max operating voltage, kV
|
525
|
|
3
|
Rated current, A
|
4000
|
|
4
|
Rated breaking current, kA
|
40
|
|
5
|
Rated aperiodic component, %, maximum
|
47
|
|
6
|
Rated through short-circuit current, kA:
|
|
Peak (electrical endurance);
|
100
|
|
Root-mean-square current value during its flow (thermal stability current);
|
40
|
|
Thermal stability current time, s.
|
3
|
|
7
|
Rated parameters of making current, kA:
|
|
Peak;
|
100
|
|
Initial value of periodic component.
|
40
|
|
8
|
Commutation of capacitive current (class С1):
|
|
Rated commutation current of unloaded air line, А;
|
500
|
|
Rated commutation current of cable line, А;
|
500
|
|
Rated commutation current of single capacitor bank, А.
|
400
|
|
9
|
Rated breaking current of shunt reactor, А
|
315±63
|
|
10
|
Minimum breaking current of shunt reactor, А
|
100±20
|
|
11
|
Own breaking time, s
|
0,018…0,025
|
|
12
|
Total breaking time, s
|
0,050
|
|
13
|
Own making time, s, max
|
0,070
|
|
14
|
Diversity of poles operation, s, max
|
|
At making
|
0,005
|
|
At breaking
|
0,0033
|
|
15
|
Annual gas leakage rate, % of gas mass, max
|
0,5
|
|
16
|
Test lightning impulse, kV:To earth / between open contacts |
1550 / 1850
|
|
17
|
Test commutation impulse voltage, kV:To earth / between open contacts |
1230 / 1660
|
|
18
|
Testing one-minute voltage of commercial frequency, kV:To earth / between open contacts |
760 /1030
|
|
19
|
Rated DC voltage of the drive control magnets, V |
110 или 220
|
|
20
|
Number of control magnets:
|
|
making
|
1
|
|
breaking
|
2
|
|
21
|
Breaking current of commutation contacts for auxiliary circuits (drive)
|
14НО + 14НЗ + 2 sliding
|
|
22
|
Spring wind up motor power for making springs, kW
|
2х1,175
|
|
23
|
Rated voltage of motor of making springs, V
|
=110, = 220 or ~230
|
|
24
|
Time of making springs winding up, s, max
|
15
|
|
25
|
Rated capacity of drive heaters, W:
|
|
Continuous anti-condensate heating;
|
50
|
|
Main heating automatically turns up at lower temperature
|
600
|
|
26
|
AC voltage of feeding heaters, V
|
230
|
|
27
|
Max. vertical dynamic force on the foundation of 1 of 4 supports of the pole at CB operation (w/o own weight), kN:
|
|
upward
|
55,4
|
|
downward
|
41,9
|
|
28
|
Max static load on the foundation of 1 of 4 supports of the pole , kN
|
8,8
|
|
29
|
Circuit breaker’s weight w/o metal supports, kg, maximum
|
9700
|
2. Cycles and Operations of Circuit Breakers:
Breaking (О);
Making (В);
Making-breaking (ВО) including – without intended delay between operations (В) and (О);
Breaking - making (ОВ) at any contact-free pause;
Breaking – making - breaking (ОВО) with intervals between operations according to items 3 & 4;
Commutation cycles:
О - 0,3с – ВО - 180с - ВО;
О - 180с – ВО - 180с – ВО.
3. Permissible breaking operations number for each pole without review and maintenance of arc chutes (commutation stability lifespan) at short-circuit currents and load currents:
At the current 100% of the rated breaking current: 15 operations
At the current 60 % of the rated breaking current: 26 operations
At the operating currents equal to 3150A: 5000 operations «Making-random pause-breaking».
At the operating currents equal to 4000A: 1700 operations «Making-random pause-breaking»
Permissible number of making operations for short-circuit currents should be not more than 50% of the permissible breaking operations; permissible making operations at load currents is equal to permissible breaking operations.
4. Reliability of Circuit Breakers:
Mechanical strength before overhaul maintenance: 10000 operations «Making –random pause - breaking» with no current in the main circuit;
Lifespan before the first maintenance at least 25 years, provided that mechanical strength or communication stability life was not spent. Maintenance necessity is judged by diagnostics of the circuit breaker technical condition;
Circuit breaker lifespan before retirement at least 40 years.
5. Absolute pressure of gas brought to temperature plus 20°С, MPa
|
Versions Т1 and У1
|
Version ХЛ1*
|
|
|
Filling pressure (nominal)
|
0,5
|
0,7
|
|
Warning alarm pressure
|
0,44
|
0,62
|
|
Locking pressure
|
0,42
|
0,6
|
6. Weight of gas required for filling circuit breaker, kg
|
Versions Т1 and У1
|
Version ХЛ1*
|
|
|
SF6 gas
|
SF6 gas
|
Tetra fluorine methane
|
|
|
56,2
|
39,6
|
22,3
|
21,0
|
