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8DA10-8DB10

Medium Voltage Switchgear

Gas Insulated Switching Device & Busbar
Rated Voltage: Up to 40.5 KV
Rated Current: Up to (5000A busbar/2500A feeder)
Rated short-time withstand current, 3 s: 40 KA(3s)
Type of Switchgear: Metal Enclosed (Fix-SF6)
Classification of switchgear is according to: IEC 62271-200
Advantages:
Suitable for applications under aggressive ambient
Conditions such as : saline air humidity Dust Condensation
It is Tight to ingress of foreign object such as : Dust, Pollution, Small animal
Compact Design
Maintenance-Free Design
Extendable

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Electrical data (maximum values) and dimensions

Single-busbar and double-busbar switchgear

Rated voltage	KV	12	24	36	40.5
Rated frequency	Hz	50/60	50/60	50/60	50/60
Rated short-duration Power-frequency Withstand voltage	KV	28 ¹⁾	50	70	85 ²⁾
Rated lightning impulse Withstand voltage	KV	75	125	170	185
Rated peak Withstand current	KA	100/104	100/104	100/104	100/104
Rated short-circuit making current	KA	100/104	100/104	100/104	100/104
Rated short-time Withstand current 3 s	KA	40	40	40	40
Rated short-circuit Breaking current	KA	40	40	40	40
Rated normal current of the busbar	A	5000	5000	5000	5000
Rated normal current of feeders	A	2500	2500	2500	2500
width	mm	600	600	600	600
Depth  • Single busbar  • Double busbar	Mm Mm	1625 2665	1625 2665	1625 2665	1625 2665
Height • Standard • With high low-voltage compartment	Mm mm	2350 2700	2350 2700	2350 2700	2350 2700

 

Electrical data, filling pressure, temperature for single-busbar and double-busbar switchgear

Common electrical data, filling pressure and temperature

Rated insulation level

Rated voltage U₂	KV	12	24	36	40.5
Rated short-duration power-frequency Withstand voltage  • phase-to-earth, open contact gap  • across the isolating distance		28 ¹⁾ 32 ¹⁾	50 ²⁾ 60 ²⁾	70 80	85 ³⁾ 90 ³⁾
Rated lightning impulse withstand voltage Uᵨ:  • phase-to-earth, open contact gap  • across the isolating distance		75 85	125 145	170 195	185⁴⁾ 220⁴⁾
Rated frequency f₂		50/60	50/60	50/60	50/60

Rated normal current I ₂

For the busbar ⁹⁾	A A A A A A	1250 2000 2500 3150 4000 5000	1250 2000 2500 3150 4000 5000	1250 2000 2500 3150 4000 5000	1250 2000 2500 3150 4000 5000

Rated filling level p me	70/120kpa at 20 c

Minimum functional level p me	50/100kpa at 20 c

Ambient air temperature	-5 c to+55 c

 

Data of the switchgear panels

Circuit-breaker panel, discon-nector panel⁶⁾

Rated normal current I r⁹⁾	A A A A A	1250 1600 2000 2300 2500	1250 1600 2000 2300 2500	1250 1600 2000 2300 2500	1250 1600 2000 2300 2500
Rated short-time withstand current I ₖ I ₖ- 3 s	Up to kA	40	40	40	40
Rated peak withstand current I ᵨ ⁵⁾	Up to kA	100/104	100/104	100/104	100/104
Rated short-circuit making current I ma ⁵⁾	Up to kA	100/104	100/104	100/104	100/104
Rated short-circuit breaking current I sc	Up to kA	40	40	40	40

Electrical endurance of vacuum circuit-breakers	At rated normal current	10,000 operating cycles
Electrical endurance of vacuum circuit-breakers	At rated short-circuit breaking current	50 breaking operations
Rated filling level Pre	For feeders	70/120 kpa at 20 c
Minimum functional level Pme		50/100 kpa at 20 c

 

Bus section-alizer bus coupler ⁷⁾

Rated normal current I r⁹⁾	A A A A	1250 2000 2300 2500	1250 2000 2300 2500	1250 2000 2300 2500	1250 2000 2300 2500
Rated short-time withstand current I ₖ I ₖ- 3 s	Up to kA	40	40	40	40
Rated peak withstand current I ᵨ ⁵⁾	Up to kA	100/104	100/104	100/104	100/104
Rated short-circuit making current I ma ⁵⁾	Up to kA	100/104	100/104	100/104	100/104
Rated short-circuit breaking current I sc	Up to kA	40	40	40	40

Electrical endurance of vacuum circuit-breakers	At rated normal current	10,000 operating cycles
Electrical endurance of vacuum circuit-breakers	At rated short-circuit breaking current	50 breaking operations
Rated filling level Pre	For feeders	70/120 kpa at 20 c
Minimum functional level Pme		50/100 kpa at 20 c

 

Cable connection panel metering panel

Rated normal current I r ⁸⁾⁹⁾	A A A A	1250 2000 2300 2500	1250 2000 2300 2500	1250 2000 2300 2500	1250 2000 2300 2500
Rated short-time withstand current I ₖ I ₖ- 3 s	Up to kA	40	40	40	40
Rated peak withstand current I ᵨ ⁵⁾	Up to kA	100/104	100/104	100/104	100/104

Rated filling level Pre	For feeders	70/120 kpa at 20 c
Minimum functional level Pme		50/100 kpa at 20 c

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