11kv 4000A Epoxy Casting Resin Insulator V. T Spout Bushing
1. Gas, Steam, dust without seriously affecting the insulation of
the contact box
No exploration or corrosive submission.
Technical Data & Requirements Requirement
Technical data and requirements .
2. Contact box and contact should be able to withstand frequency
test voltage(effectiveness) 42 KV, 5 minutes, lightning shock(peak)
75 KV;
3. The label contact to earth call with power freedom test volume
of 42 KV for 5 minutes and
lightning impact vplage(peace value) of 75KV;
4. The temperature rise of the end of the contact box at the end of
the line under long-term operation does not exceed 65 ℃ under the
rated electricity;
5. The experience of lead-out final call not more than 65 °C if the
contact box is used for long time in rate current con
6. The wall-piercing sleeve is used to increase the insulation
function of the mother-row in the cabinet and play a certain
supporting role. In the middle, in the end.
7. Insulators only act as support, sometimes using a belt point
sensor directly instead of an insulator as well as as as sensors.
8. So the current ring net cabinet is generally made maintenance
free, but the cost is higher. For opening and closing stations,
power substations, such as large power, the more important load to
use the cabinet to protect. At present, Wuhan city according to the
current power supply department requirements, generally choose ring
cabinet, the installation capacity of the Transformer with its
general requirements to control within 1250 KVA .
| Item | Technical data |
| Rated voltage (KV) | | | 12 | | |
| Rated frequency(Hz) | 50 |
| Insulator(capacity) | insulating | Frequency withstand voltage 5 min (KV) | | | 42 | | |
| Frequency withstand voltage 1 min (V) | 2000 |
| Lighting impulse withstand voltage (KV) | 40 | 60 | 75 | 125 | 185 |
| Rated Current | 4000A |
| Dispute bend (N) | ≥10000 |
| |
