OverviewThe sectionalizer is applied in three phase power system with AC 50Hz and rated voltage 10-40.5kV. It is installed on distribution overhead line to isolate fault when corporate with recloser or circuit breaker. When fault occurs on the line, the faults current reaches or exceed preset threshold value, the sectionalizer can memorize the tripping times of upstream recloser. When it reaches preset times, it drops down to trip automatically.
Sectionaliser will drop down to trip automatically on the condition as given below:
First, the faults current exceeds presetting pickup current. Next, the counting time reaches presetting value (1, 2, 3 or 4). Third, the circuit loses voltage and the current is lower than 300mA. And then the Sectionlizer will trip automatically when the aforesaid conditions occur simultaneously. If any of aforesaid conditions doesn't occur, the Sectionlaizer will not trip automatically.
This sectionalizer uses micro-computer and operating trip mechanism and does not require external auxiliary supply.
The catalog number system:
Technical data
S/N |
name |
unit | RDK10-12/D315 |
RDK-12/D200 | RDK
-40.5/D200 |
| 1 | Rated voltage | KV | 12 | 12 | 40.5 |
| 2 | Rated current | A | 315 | 200 | 200 |
| 3 | Rated frequency | Hz | 50 | 50 | 50 |
| 4 | Pickup current rating | A | 8~500A | 8~400A | 8~400A |
5 | Short time withstand
current(RMS) |
KA |
10 |
10 |
10 |
| 6 | Short circuit withstand time | s | 4 | 1 | 1 |
7 | Short time withstand current
(PEAK) |
KA |
25 |
16 |
20 |
| 8 | Counting time | time | 1, 2, 3 | 1, 2, 3,4 | 1, 2, 3,4 |
| 9 | Max memory time | S | 15 | 20 | 20 |
| 10 | Max reset time | S | 30 | 20 | 20 |
11 | Permissible deviation of pick up
current for memory rest time |
% |
±10 |
±10 |
±10 |
| 12 | Opening time | ms | ≤180 | ≤200 | ≤200 |
| 13 | Main circuit resistance | μ Ω | ≤300 | ≤400 | ≤400 |
| 14 | Mechanic life | Time | 500 | 500 | 500 |
| 15 | Horizontal pulling force of terminal | N | 250 | 250 | 250 |
| 16 | Manual open moment | N·m | ≤4 | -- | -- |
| 17 | Manual open force | N | -- | ≤120 | ≤120 |
| 18 | BIL(phase to ground) | KV | 75 | 110 | 185 |
| 19 | BIL(between gap) | KV | 85 | 110 | 220 |
20 | PFWV
(phase to ground) | dry |
KV | 42 | 55 | 95 |
| wet | 30 | 45 | 80 |
21 | PFWV
(between gap) | dry |
KV | 48 | 55 | 110 |
| wet | 34 | 45 | 95 |
| 22 | PFWV of control circuit | KV | 2 | 2 | 2 |
| 23 | Dirty proof grade | Class | | | |
| 24 | Ice proof thickness | mm | ≤7 | ≤1 | ≤1 |
25 | Pickup current (four classes) and
Counting time can be set | | -- |
YES |
YES |
26 | Mechanical interlocking for 3 phase devices and automatic reset | | -- |
YES |
YES |
ATTENTION:
1.The payment term: We accept TT,30% deposit and 70% balance against copy of BL.
2.The delivery time: Usually it will take about 15-20 days.
3.The standard of package: Usually use strong plywood case for protection.
4.The material of transformer: We have two types, one is with copper and another one is with aluminum. It depends on your requirement. In fact, those two have difference if normal work well. Only except the long life. Copper is better and also higher price.
5.The logo: If you have good quantity, it absolute no problem to do OEM.
6.Our market: our products are popular in Indonesia, Philippines, Russia, USA, Middle East and so on. Some of them are our regular customers and some of them are developing. We hope you can join us and make mutual benefit from our cooperation..
7.Warranty: in 12 month since BL date.
OUR SERVICE:
1.quick response in before sales period help you got order.
2.excellent service in production time let you know each step we made.
3.reliable quality solve you after sale headache.
4.long period quality warranty ensure you can buy without hesitate.
WHY CHOOSE ROCKWELL:
1. One-stop supplier globally.
2. More than 10 years professional experiences in electrical appliance industry.
3.We offer professional online technology support for perfecting your electrical solution free.
4. Experienced sales service and suggestion.
5. All the products with accessories under strict quality control and final inspection before shipping.
6. We can assure the powerful competitive price and reliable quality products.
7. Most competitive shipping rate from our own shipping forwarder.
8. Warranty assurance: 12 month
9. Whatever big or small order, we can provide you one-to-one service.
CONTACT US:
Contact person: Mr. Chen Chengming
Tel:86-577-27869969
Mobile:86-18668777248
Your Best Choice for Electrical Appliances Industry!!!
Please leave an inquiry to know more details about Price , Packing ,Shipping and Discount.
Wenzhou Rockwell Transformer Co., Ltd. is a high-tech enterprise invested by Rockwill Transmission and distribution Group Co., Ltd. Our company is specialized in developing, manufacturing and marketing Single phase & three phase automatic step voltage regulator, Auto-transformers, power transformers, preventive auto transformer, CT and PT combinated Metering unit, and compact transformer and pad moubted substations.
Our company enjoys a worldwide reputation for our superior quality and service. In addition to the domestic market, our products are exported to America, Australia, Central Europe, Eastern Europe, Southeast Asia, the Middle East, Africa and other regions and countries.
Besides a great variety of products, we also provide you with professional technical solutions and services. If you have any problem, please feel free to contact us and our technicians will find a complete solution for you.
We always embrace the idea of developing together with customers and always try our best to provide users with safer, easier, greener and more energy-saving high and medium voltage electric equipment and components.
Note:
Rockwell's sister company Rockwill is offering manufacturing for MV and LV switchgears, ring main units, vacuum(gas) circuit breakers, reclosers, load break switches and Low voltage metering unit, Current transformer, Voltage transformer.
