Fixed-Mounted Circuit-Breaker Switchgear, Rmu, Gas Insulated

• Customization: Available
• Certification: VDE
• Shell Material: Steel Plate
• Model NO.: 8DA10
• Voltage Level: Medium Voltage
• Installation: Fixed
• Structure: Cabinet
• Current: AC
• Rated Voltage: 12/24/36/40.5kv
• Rated Frequency: 50/60Hz
• Rated Normal Current: up to 5000A
• Rated Filling Level: 70/120kpa
• Transport Package: Wood Box Transportation
• Specification: Optional
• Trademark: Siemens-
• Origin: China

Product Description

Product Description

Fixed-mounted circuit-breaker switchgear 8DA and 8DB is indoor, factory-assembled, type-tested, single-pole metal enclosed, SF6-insulated switchgear with metallic partitions 3), for single-busbar and double-busbar applications, as well as for traction power supply systems. It is used in transformer and switching substations, e.g., in:

• Power supply companies

• Power stations

• Cement industry

• Automobile industry

• Iron and steel works

• Rolling mills

• Mining industry

• Textile, paper and food industries

• Chemical industry

• Petroleum industry

• Pipeline installations

• Offshore installations

• Electrochemical plants

• Petrochemical plants

• Shipbuilding industry

• Diesel power plants

• Emergency power supply installations

• Lignite open-cast mines

• Traction power supply systems.

Product Photos

Specification

Common electrical data, filling pressure and temperature	Rated insulation level			Rated voltage Ur			kV	12	24	36	40.5
				Rated short-duration power-frequency -phase-to-earth, open contact gap - across the isolating distance			kV kV	28 1) 32 1)	50 2) 60 2)	70 80	85 3) 90 3)
				-Rated lightning impulse withstand voltage Up : -phase-to-earth, open contact gap - across the isolating distance			kV kV	75 85	125 145	170 195	185 4) 220 4)
	Rated frequency fr				Hz			50 / 60	50 / 60	50 / 60	50 / 60
	Rated normal current Ir			for the busbar 9)	A A			1250 2000	1250 2000	1250 2000	1250 2000
					A			2500	2500	2500	2500
					A			3150	3150	3150	3150
					A			4000	4000	4000	4000
					A			5000	5000	5000	5000
	Rated filling level pre			for the busbar				70/120 kPa at 20 °C
	Minimum functional level pme							50/100 kPa at 20 °C
	Ambient air temperature							- 5 °C to + 55 °C
Data of the switchgear panels
Circuit-breaker panel, discon nector panel 6)	Rated normal current Ir 9)                                                                                                                                       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 Ik     tk = 3 s                                                up to kA							40	40	40	40
	Rated peak withstand current Ip 5)                                                                                                 up to kA							100/104	100/104	100/104	100/104
	Rated short-circuit making current Ima 5)					up to	kA	100/104	100/104	100/104	100/104
	Rated short-circuit breaking current Isc					up to	kA	40	40	40	40
	Electrical endurance of vacuum circuit-breakers		at rated normal current      at rated short-circuit breaking current					10,000 operating cycles
								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 Ir 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 Ik     tk = 3 s                                                up to kA							40	40	40	40
	Rated peak withstand current Ip 5)                                                                                                 up to kA							100/104	100/104	100/104	100/104
	Rated short-circuit making current Ima 5)                                                                                   up to kA							100/104	100/104	100/104	100/104
	Rated short-circuit breaking current Isc                                                                                       up to kA							40	40	40	40
	Electrical endurance of vacuum circuit-breakers							10,000 operating cycles
								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 connec- tion panel, metering panel		Rated normal current Ir 8) 9)                                                                                                                                  A						1250	1250	1250	1250
		A						1600	1600	1600	1600
		A						2000	2000	2000	2000
		A						2500	2500	2500	2500
		Rated short-time withstand current Ik     tk = 3 s                                                up to kA						40	40	40	40
		Rated peak withstand current Ip 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