Air Insulated Switchgears (AIS)

---

Gas Insulated Switchgears (GIS)

                  BGA

---

Ring Main Units

---

Distribution Transformers

---

Busway System

---

Solar Power System

BGA

EPE Type BGA Compact Gas Insulated Switchgear
Characteristics	Unit	12kV	24kV	36kV
Configuration		Single Busbar / Double Busbar
Rated voltage	kV	12	24	36
Maximum operating voltage	kV	12	24	36
Rated frequency	Hz	50
Rated power frequency withstand voltage, 1 min	kV	28	50	70
Rated lightning impulse withstand voltage, 1.2/50 us	kV	75	125	170
Rated busbar current	A	2000	2000	2000
Rated feeder current	A	630/1250/2000
Rated peak withstand current	kA	63	63	63
Rated short time withstand current, 3 sec	kA	25
Internal arc protection		ALFR – 25kA, 1 sec
Insulating medium		SF6
Rated pressure (gauge)	MPa	0.08
Low pressure alarm stage – 1	MPa	0.06
Low pressure alarm stage – 2	MPa	0.05
High pressure	MPa	0.12
Leakage rate	% pa	0.1
Degree of protection
- High voltage live parts	IP	65
- Low voltage compartment	IP	4X
Ambient temperature – maximum value	°C	40
Relative humidity, 24 average / 1 month average	%	95/90
Standard altitude for erection above sea level	m	1000

 

EPE Type DGA 3 Position Isolator
Operation of 3 position isolator		Motorised / Manual
Auxiliary voltage
Control circuit	Vdc	110
Motor circuit (Vac/Vdc)	Vdc	110

 

EPE Type VGA Vacuum Circuit Breaker
Characteristics	Unit	12kV	24kV	36kV
Rated voltage	kV	12	24	36
Maximum operating voltage	kV	12	24	36
Rated frequency	Hz	50
Rated power frequency withstand voltage, 1 min	kV	28	50	70
Rated lightning impulse withstand voltage, 1.2/50 us	kV	75	125	170
Rated short circuit breaking current of circuit breaker	kA	25
Rated short circuit making current of circuit breaker	kA	63	63	63
Rated operating sequence		O – 0.3 s – CO – 3 min – CO
Rated closing time	msec	70	70	80
Rated opening time	msec	50	50	50
Rated TRV for terminal fault / FPTC factor	p.u.	1.5	1.5	1.5
Rate of rise	kV/us	0.34	0.47	0.57
TRV peak voltage	kV	20.6	41.2	61.7
Type of operating mechanism		Motor charged spring stored energy
Tripping system		Shunt trip
Spring charging motor	Vdc	110
Output	W	60
Current	A	2 ~ 3
Closing coil auxiliary voltage	Vdc	110
Current	A	4
Tripping coil auxiliary voltage	Vdc	110
Current	A	5

 

Dimension
	Unit	Feeder	Incomer	Bus Section	Riser	Bus Coupler
Single Busbar
- Height	mm	2610				na
- Depth	mm	1580				na
- Width (630A, 1250A)	mm	700	700	700	700	na
- Width (2000A)	mm	800	800	800	700	na
- Approx. weight per panel	kg	1300	1450	1200	1000	na
Double Busbar
- Height	mm	2610
- Depth	mm	2405
- Width (630A, 1250A)	mm	700	700	700	700	700
- Width (2000A)	mm	800	800	800	700	800
- Approx. weight per panel	kg	1900	2100	1800	1600	1900