ERFA Industries Group
ERFA Industries Group Xian ERFA Switchgear under ERFA Industries Group
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KYN61-40.5(Z) indoor high voltage vacuum switchgear
Main characteristicss
The switchgear is assembly type.The circuit breaker is floor roll-out.
Adopted new compound insulation vacuum circuit breaker has the features of good interchange ability and easy replacement.
The truck shelf is equipped with lead-screw drive mechanism, which can move truck easily and prevent the mechanism be damaged from faulty operation.
All the operations can be done with the door shut.
All interlocks connecting with the main switch,truck and door of switchgear adopt compulsive mechanical lock and can meet the requirements of "FIVE PREVENTION".
The space of the cable comparment is abundant for the connection of several cables.
The instant earthing switch is used for earthing and short-circuiting of the circuit .
The degree of protection for the enclosure is IP3X.It is IP2X when the door of truck comparment open.It conforms to GB3906-2006,DL404-2007 and refers to IEC-298 standard.
General description
KYN61-40.5(Z) type indoor HV vacuum switchgear(hereinafter called switchgear) is three-phase AC 50Hz indoor power distribution equipment with the rated range voltage of 40.5kV. It is used for power reception and distribution of the power station,substation mining and industrial enterprise for the control,protection and monitor of the circuits, It can be used in the fields where it is operated frequently. It confroms to GB/T11022-2011,GB3906-2006,and DL404-2007 standards.
Applying ambient conditions
Ambient temperature:The max temperature should be +40ºC.The average value in 24 hours should be no more than 35ºC,the min temperature should be -10ºC.
The height above sealevel should be no higher than 1000m.
Relative humidity:daily average relative humidity≤95%,monthly average relative humidity≤90%
Earthquake intensity:not exceed 8 degrees
Saturated vapour pressure:daily average value≤2.2kPa,monthly average value≤1.8kPa
It should be used in the place where it is free from fire,explosion,serious filth,chemical erosion and violent vibration.
Main technical data of the vacuum switchgear
| S.N. | Name | Unit | Date |
| 1 | rated voltage | kV | 40.5 |
| 2 | rated current | A | 1250 1600 2000 |
| 3 | rated frequency | Hz | 50 |
| 4 | rated short time withstand current | kA | 20 25 31.5 |
| 5 | rated peak withstand voltage | kA | 50 63 80 |
| 6 | rated power frequency withstand voltage | kV | 95/1 min |
| 7 | rated lighting impluse withstand voltage | kV | 185 |
| 8 | rated duration of short circuit | s | 4 |
| 9 | the degree of protection | IP3X |
Main technical data of the vacuum circuit breaker
| S.N. | Name | Unit | Date |
| 1 | rated voltage | kV | 40.5 |
| 2 | rated frequency | Hz | 50 |
| 3 | rated power frequency withstand voltage | kV | 95/1 min |
| 4 | rated lighting impluse withstand voltage | kV | 185 |
| 5 | rated current | A | 1250 1600 2000 |
| 6 | rated short time withstand current | kA | 20 25 31.5 |
| 7 | rated short circuit withstand current | kA | 20 25 31.5 |
| 8 | rated peak withstand voltage | kA | 50 63 80 |
| 9 | rated duration of short circuit | s | 4 |
| 10 | opening time | s | 30≤t≤60 |
| 11 | closing time | s | 50≤t≤100 |
| 12 | breaking times of the rated short circuit breaking current | cycles | 20 |
| 13 | mechanical endurance | cycles | 10000 |
Main technical data of spring operating mechanism
| Name | Unit | Data | |
| rated operate voltage | opening coil | V | DC220/110 AC220/110 |
| closing coil | |||
| rated operate current | opening coil | A | 0.96(220V) 1.05(110V) |
| closing coil | |||
| power of energy-stored motor | W | 230 | |
| rated voltage of energy-stored motor | V | DC220/110 AC220/110 | |
| distribution for storing energy | s | ≤12 | |
The overall dimension of the switchgear
Over dimension(width*depth*height):1400*2800*2600mm
The construction drawing of the switchgear
A. Relay instrument component
B. Bus-bar component
C. Circuit breaker component
D. Cable component
