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Products
ZW30-40.5 Outdoor HV Vacuum Circuit Breaker
ZW30-40.5 Outdoor HV Vacuum Circuit Breaker ZW30-40.5 Outdoor HV Vacuum Circuit Breaker is available in power T&D system with rated voltage of 35kV, rated current of 1600A, AC three phase and 50 Hz. It could be used in industrial enterprises and mines, power plant and substation for protection and controlling, as well as inter connection circuit breaker. This is also available in places for frequent operations.
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Product Description
ZW30-40.5 Outdoor HV Vacuum Circuit Breaker
1. Product Introduction
ZW30-40.5 Outdoor HV Vacuum Circuit Breaker accord with the requirement of GB 1984-89 'AC HV circuit breaker', IEC56 'HV AC circuit breaker' and JB3385-1996 '3.6-40.5kV indoor AC HV vacuum circuit breaker'.
2. Main technical data ofZW30-40.5 Outdoor HV Vacuum Circuit Breaker
Table1
|
No. |
Name |
Unit |
Parameter |
||||
|
1 |
Rated voltage |
kV |
40.5 |
||||
|
2 |
Rated insulation level |
Rated 1min power frequency withstand voltage |
Dry test (break point, phase to phase, |
95 |
|||
|
phase-to-earth) |
80 |
||||||
|
Lightning impulse withstand voltage(peak) |
185 |
||||||
|
3 |
Rated current |
A |
2000 |
||||
|
4 |
Rated short-circuit breaking current |
kA |
31.5 |
||||
|
5 |
Rated short-circuit making current |
kA |
80 |
||||
|
6 |
Rated operation sequence |
0-0.3s-CO**-180s-CO** |
|||||
|
7 |
Rated out-of-phase breaking current |
kA |
8 |
||||
|
8 |
Rated single capacitor bank breaking current |
A |
630 |
||||
|
9 |
Rated duration of short circuit |
s |
4 |
||||
|
10 |
Rated short-circuit breaking current break times |
times |
20 |
||||
|
11 |
Arcing time |
ms |
＜20 |
||||
|
12 |
Full breaking time |
ms |
≤85 |
||||
|
13 |
Mechanical life (CO) |
times |
10000 |
||||
|
14 |
Rated gas Insolating pressure |
Adopt TD-40.5W/2000-31.5(K) Vacuum arc extinguish room, filled with SF6 gas |
Mpa |
0.02(20°C) |
|||
|
Adopt TD-40.5W/2000-31.5(K) Vacuum arc extinguish room, filled with dry air and high pure nitrogen. |
|||||||
|
15 |
Annual gas leakage rate |
% |
≤1 |
||||
|
16 |
Vacuum arc Extinguish Room Vacuum degree |
New ex-work vacuum arc extinguish room |
Pa |
≤1.33X10 |
|||
|
20 years of storage |
<6.6X10 |
||||||
Note: Insulation level of porcelain knob and tube is tested as per height o * f above sea level 3000m.
Three values are 100kV, 120kV, 230kV.
CO make-break time is 0.1s.
Table 2
|
No. |
Name |
Unit |
Parameter |
|
|
1 |
Contact journey |
mm
|
20±1 |
|
|
2 |
Super journey |
4±1 |
||
|
3 |
Contact allowable abrasion thickness |
3 |
||
|
4 |
Average opening speed (before contacting cushion) |
m/s
|
1.85~2.15 |
Measured at base shaft |
|
5 |
Average closing speed (full journey is 20mm) |
0.7~1.0 |
||
|
6 |
Contact closing bounce time |
m/s |
≤3 |
|
|
7 |
3 phase opening insimultaneity |
≤2 |
||
|
8 |
3 phase opening insimultaneity |
≤2 |
||
|
9 |
Closing time |
45~100 |
||
|
10 |
Opening time |
33~65 |
||
|
11 |
Each electric circuit resistance |
μΩ |
≤40 |
|
|
12 |
Opening contact rebound value |
m/s |
3 |
|
|
13 |
Phase to phase central distance |
750±1 |
||
3.Service ambient condition ofZW30-40.5 Outdoor HV Vacuum Circuit Breaker
a. Altitude height: ≤3000m;
b. Ambient temperature: -40C~+40°C;
c. Ambient air may polluted with dust, smoke, corrosion gas, steam and salty fog. The pollution grade can't
beyond II grade of GB/T5582 when altitude is in 3000m, pollution grade may reach IV grade of GB/T5582 when
altitude ≤1000m;
d. Wind speed: ≤34m/s (correspond to exterior of column 700Pa )
e. Vibration and earthquake come from out of the product may ignored.
F. Other special service condition may settled by the user and manufacture.
4. Maintenance and repair for ZW30-40.5 Outdoor HV Vacuum Circuit Breaker
a. ZW30-40.5 Outdoor HV Vacuum Circuit Breaker and operation mechanism should be checked and lubricated termly to avoid rusting.
b. Check if screws and nuts of each part are flexible every 2000 times operation, if it is flexible, it should be screwed down in time.
c. Vacuum arc extinguish room enclosure should not stand with the force beyond 1000N and obvious pull force can't effected when & after installation.
d. Prohibit firm object (as tool) to impact insulation porcelain tube to avoid gas leakage and effecting insulation.
