ODRA – Medium voltage switchgears
Medium voltage air insulated metal-clad switchgear ODRA are designed for primary distribution of AC three-phase electric energy with a rated frequency of 50/60 Hz and rated voltage up to 36 (40,5 kV) in power plants, distribution networks of public utilities and industrial power engineering sectors. Switchgear may be executed either in free standing or against wall setup. The ODRA switchgear may be applied for operation in both standards and special conditions.
The construction is made from steel plates covered by aluminum-zinc coating. Side covers of the external panels and doors are covered with polyester powder paint, which ensures excellent protection from corrosion.
The color is adapted to the Customer needs. Switchgears are designed for installation in electrical rooms.
Switchgear ODRA were type tested and come with the certificates verifying their rated parameters and admitting them for use at power distribution plants, power stations, industrial plants and other facilities generating, transmitting or using electric energy.
ODRA construction with withdrawal element.
A – Bus-bar compartment;
B – withdrawal element compartment;
C – cable connection compartment;
D – secondary wiring compartment;
On the trolley can be installed circuit breaker, disconnector, contactor, instrument voltage transformers.
TECHNINIAI DATA
ODRA 12
ODRA 17
ODRA 24
ODRA 36(40,5)
Add Yor Heading Text Here
| Rated insulation voltage | kV | up to 12 | up to 17,5 | up to 24 | up to 36/40,5* | ||
| Rated lightning impulse withstand voltage (1,2/50μs) | kV | 75/85 | 95/110 | 125/145 | 170/190* | ||
| Rated power frequency withstand voltage | kV | 28/32 42/48* | 38/45 | 50/60 | 70/95* | ||
| Rated frequency | Hz | 50 | |||||
| Rated continuous current | A | up to 3150 | up to 2500 | up to 2000 | up to 1250 | ||
| Rated short time withstand current | kА | up to 31,5/3s up to 40/1s | up to 31,5/3s | up to 25/3s | |||
| Rated peak withstand current | kА | up to 100 | up to 80 | up to 63 | |||
| Withstand for internal arcing fault | kА | up to 40/1s | up to 31,5/1s | up to 25/1s | |||
| Degree of protection | IP 41/IP4X | ||||||
| IAC classification (class of resistance to internal arc) | AFLR | ||||||
| PM/PI classification (class of partitions) | PM | ||||||
| LSC classification (class of compartment accessibility) | LSC2B | ||||||
| Weight | kg | 550-1200 | 900-1600 | ||||
| Bus-bar system | single | ||||||
| Overall dimensions**) | Width | mm | 600-1000 | 750-1000 | 1200,1600 | ||
| Depth | mm | 1250,1450 | 1430 | 1950 | |||
| Height | mm | 2150,2250 | 2300 | 2500 | |||
| Standards | PN-EN 62271-200:2007PN-EN 62271-1:2009 ГОСТ 14693:1990 ГОСТ 1516.3:1996 | ||||||
*) required according to GOST
**) without external guards, covers, doors
Switchgear ODRA with installed equipment are adapted for indoor operation under normal conditions, with the following environmental conditions:
Installation altitude above sea level | to 1000 m | |
Ambient temperature: | peak short-time | +40°C |
maximum average during the day | +35°C | |
maximum average yearly | +20°C | |
minimum sustained | -5°C | |
Air relative humidity at +40°C: | during the start up | max. 80% |
during standstill or operation | max. 95% | |