Togami Electric Mfg. Co., Ltd.

Togami Electric Mfg. Co., Ltd.

PRODUCTS

  
RMU

RMU

 
CUS

CUS

Ring Main Unit(RMU)

RMU is a SF6 gas insulated metal-enclosed switchgear that is used in 24kV, 3 phase 3 wire, 50Hz underground solidly grounded distribution systems. RMU has 2-load break switches and a 1- fuse combination switch. This equipment also works as an Automatic Transfer Switch (ATS).

Specifications

                                            
Rated voltage [kV]24
Rated frequency [Hz]50
Number of circuit2-incoming feeder [LBS]
1-outging feeder[LBS w/ HRC fuse]
Rated current [A]630 A [2-in],200 A [1-out]
BIL(Basic Impulse Level) [kV]125
Rated power frequency withstand voltage [kV]50(Dry)
Mechanical endurance [operations] LBS1,2,31,000(M1)
ES1,21,000(M0)
Electrical endurance LBS1,2E2
ES1,2E1
Rated short time withstand current [kA/1sec] LBS1,216
ES1,2
Rated short circuit making current [kApeak] LBS1,240
ES1,2
Rated SF6 gas pressure [kPa・G at 20℃]50
Ambient temperature [℃]-5 to +40
Total weight [kg]680

Dimensions

rmu

RMU/FAULT CLEAR® for a wind farm

wind farm

Compact unit substation (CUS)

CUS consists of RMU, distribution transformer, and low-voltage equipment. This is an all in one package as minimal distribution system.


cus

The slim size advantage

slim size

Internal arc safety design

Our CUS is certified by a STL laboratory. (IEC62271-202 6.102) The test is carried out 4 patterns [IAC-A & B with 2 ignition points each]

           
Test current16 kA r.m.s
Test duration1 s
Internal arc classificationIAC-A & B
Arc ignition pointPoint A : MV cable box in RMU
Point B : inside RMU
safety

Single line diagram

Single line diagram of CUS ( RMU with plug in voltage transformer)

diagram
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