Disconnectors DSH Type 24kV/630A
Medium Voltage Disconnectors (20-24kV), single pole operating at 630 A and three pole at 630 A Nominal Current. Capable for outdoor installation, manually operated with vertical break.
The Disconnectors are built with porcelain or composite insulators and are usually used in 20/24 kV overhead distribution lines.
They are manufactured by STALCO S.A. according to IEC 62270-102 ,IEC 60694 (IEC 62271-1) Standards and the Technical Descriptions of the HEDNO:
|
|
Single Pole |
|
Three Pole |
Porcelain Insulator |
|
TD-309/30.08.06 |
|
TD-310/30.08.06 |
|
|
|
|
|
Composite Insulator |
|
TD-311/05.09.06 |
|
TD-312/05.09.06 |
This type of disconnector has been manufactured by our company for more than 30 years. Our products have been operating successfully in the Greek power grid throughout all this time.
Manufactured to withstand the harshest environmental conditions and high pollution levels. The base of the disconnector and all non-current carrying parts are made by formed hot dip galvanized steel.
The insulators are made of high-quality brown porcelain. The disconnector's contacts, terminals and blade are made of tin-plated copper.
The contacts are self-cleaning and always maintain constant pressure and once secured in the closed position can withstand seismic, wind and other vibrational forces without opening.
All screws, nuts and washers are made of hot dip galvanized steel to ensure long and trouble-free operation.
The operation of the Single Pole Disconnectors is done manually using a hookstick, whereas the Three Pole Disconnectors with a metal handle. The Disconnectors can be mounted vertically or with a 30o angle from the vertical on a steel structure.
Ambient Temperatures |
-250C to +450C |
Max. Operating Altitude |
1.000 m |
Relative Humidity |
≤95 % |
Max. Ice Coating |
10 mm |
Pollution Level |
Moderate to Heavy |
Wind Speed |
150 km/h |
The Single and Three Pole Disconnectors are manufactured to comply to the same operating conditions.
|
|
Single Pole |
|
Three Pole |
Nominal Voltage |
|
20 kV |
||
Max. Operating Voltage |
|
24 kV |
||
Frequency |
|
50 Hz |
||
Nominal Current |
|
630 A
|
||
Short Circuit Level |
|
10 kA (rms) / 25 kA (peak) |
||
Short Circuit Duration |
|
3 sec |
||
Insulation Level |
|
24 / 50 (60) / 125 (165) kV |
||
Mechanical Endurance |
|
1.000 operations |
||
Insulator |
|
Porcelain or Composite |
Contract No. |
Year |
Pieces |
5800011 |
1990 |
1.158 |
2830031 |
1993 |
445 |
2830021 |
1994 |
438 |
2870042 |
1995 |
468 |
2860052 |
1997 |
323 |
2880012 |
1999 |
279 |
2890022 |
1999 |
179 |
4083062 |
2003 |
156 |
7132112 |
2004 |
35 |
4084022 |
2005 |
499 |
4088081 |
2009 |
310 |
IPTO |
2013 |
200 |
6300003509 |
2020 |
114 |
5030081 |
2021 |
7.305 |
6300004983 |
2023 |
90 |
Total |
11.999 |
Single Pole |
|
331004560 |
Three Pole |
|
331009090 |
13 Str Nikitara, Chalandri P.C. 15123
+30 210 6824538
+30 210 6824661
+30 210 6826256
1st Industrial Area of Volos, P.C. 38500
+30 24210 95102
+30 24210 95124
+30 24210 95403
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