AC Metal Closed Ring Network High voltage Switchgear Electrical Cabinet
Overview
KYN61-40.5(2)type altermating current metal-clad and meta-enclosed with drawable switchgear (hereinafter referred to as switchgear) is a indoor complete set of power distribution unit of three-phase AC50Hzand rated voltage of 40.5kV.Used for receiving and distributing the eleetric energy in power plants,transformer substations,mining and industrial enterprises,etc. it controls,protects and detects the circuits also is applicable to freauent operation locations.This swichgear complies with GB/T11022-1999,GB3906-1991,DL404-1997,etc.
Main feature
◇Cabinet structure is of assembled type,the circuit breaker adopts floor type handcart structure;
◇Equipped with brand new composite insulated vacuum circuit breaker,is featured with good interchangeability,and is simple to change;
◇The handcart frame is mounted with lead screw nut propelling mechanism,it is able to move the handcart easily,and prevent damage ol propelling mechanism caused by misoperation;
◇All operations can be carried out when the cabinet dooris closed;
◇Interlocking among the main switch,handcart and switchgear adopts compulsory mechanical locking mode, meeting the”five preventions”function;
◇Cable chamber is large enough,it could connect multi cables;
◇The fast earthing switch is used for earthing and circuit short-circuit;
◇Of protection of the enclosure is P3Xand isIP2X when the door of handcartchamber is opened;
◇The product complies with GB3906-1991DL404-1997and refers to IEC-298.
Use enviromental conditions
◇Ambient temperature:-10°C-+40℃，average value measured within 24h should not exceed35℃;
◇Altitude:≤1000m;
◇Relative humidity:daily≤95%.monthly≤90%;
◇Seismic intensity:≤s8;
◇Vapor pressure:daily<2.2kPa,monthly<1.8kPa;
◇Ambient environment: the installation site should be free of fire,explosive danger,serious pollution,chemical corrosion or severe vibration.
Vacuum breaker switchgear main technical parameters
| Name | Unit | Value |
| Rated voltage | KV | 40.5 |
| Rated current | A | 1250 1600 2000 |
| Rated frequency | Hz | 50 |
| Rated short-time withstand current | KA | 20 25 31.5 |
| Rated peak withstand current | KA | 50 63 80 |
| Rated power frequency withstand voltage | KV | 95/1min |
| Rated lighting impulse withstand voltage | KV | 185 |
| Rated short-circuit duration | S | 4 |
| Degree of protection | IP3X |
Vacuum circuit breaker main technical parameters
| Name | unit | value |
| Rated voltage | kV | 40.5 |
| Rated frequency | Hz | 50 |
| Rated power frequency withstand voltage | kV | 95/1min |
| Rated lighting impulse withstand voltage | kV | 185 |
| Rated current | A | 1250 1600 2000 |
| Rated short-time withstand current | kA | 20 25 31.5 |
| Rated short-time breaking current | kA | 20 25 31.5 |
| Rated peak withstand current | kA | 50 63 80 |
| Rated short-circuit duration | ms | 4 |
| Opening time | ms | 30≤t≤60 |
| Closing time | s | 50≤t≤100 |
| Rated short-circuit breaking current times | times | 20 |
| Protection Level | times | 10000 |
Spring operating mechanism main technical parameters
| Name | Unit | value | |
| Rated operating voltage | Opening coil | V | DC220/110,AC220/110 |
| Closing coil | |||
| Rated operating current | Opening coil | V | 0.96(220V),1.05(110V) |
| Closing coil | |||
| Power of energy-storage motor | W | 230 | |
| Rated voltage of energy-storage motor | V | DC220/110,AC220/110 | |
| Energy-storage time | S | ≤12 | |
Switchgear structure features
Outline dimension of switchgear
outline dimension(W×D×H)
1400×2800×2600
Structural schematic diagram of switchgear
A relay meter B bus chamber C ciircuit breaker D cable chamber
Switchgear
Schematic diagram of installation foundation of switchgear
a:Height of electrical room:≥4500mm;
b:Distance between cabinet back and wall:≥1500mm;
c:Flatness of foundation frame:≤1mm/m2;
d:The height of embedded channel steel of foundation shall not exceed 3mm above the ground;
e:It can be fixed on the foundation by bolts or welding;
f:The weight of switch cabinet is about 1800kg
g:The width of switch cabinet operation corridor(single row):≥3000mm;double face(face to face)≥4000mm.
Tranformer performance parameters
Primary wiring schemes of switchgear include 27 typical schemes,meeting users’ demands on cable incoming and outgoing lines,overhead incoming and outgoing lines tie,measurement and protection,if requine other schemes,required please conta with ct the manufacturer.
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