Quality Inspection for 11kv Power Substation - KYN61-40.5(z)high voltage armored Removable Ac Metal-enclosed Switchgear – Pengbian

Product Description

KYN61-40.5 air-insulated metal-clad withdrawable switchgear (hereinafter as switchgear is a kind of MV switchgea r.

It is designed as a withdrawable module type panel, and the withdrawable part is fitted with VD4-36E,VD4-36 withdrawable vacuum circuit breaker,It can also be fitted with isolation truck, PT truck, fuses truck and so on. It is applicable to three phase AC 50/60 Hz power system

KYN61-40.5 armored metal-enclosed switchgear (switchgear for short) is a switchgear designed and improved by our factory on the basis of the original product. It is suitable for three-phase AC 50Hz power system, used for receiving and distributing electric energy and controlling, protecting and monitoring the circuit.
This switchgear has various functions to prevent misoperation, including preventing the load from moving the handcart, preventing the live connection of the grounding switch, and preventing the charging of the live interval.
This switchgear is equipped with excellent ZN85, VN1 vacuum circuit breakers or ABB’s VD4, HD4 series vacuum circuit breakers. Switchgear is a power distribution equipment with advanced technology, stable performance, reasonable structure, convenient use, safe and reliable.

 Model meaning

MODEL:KYN61-40.5 □ □ □

K: Metal armored
Y: move away
N: Indoor
61: Design serial number
40.5: Rated voltage (kV)
□: Circuit breaker type Z vacuum SF6 sulfur hexafluoride
□: Rated current
□: Rated short-circuit breaking current (kA)

Main Feature

•The cabinet body is made of aluminum-zinc-coated sheets processed by numerical control equipment, and then spliced by bolts or willows. The structure is fully assembled.
• It can be equipped with ZN85-40.5 vacuum circuit breaker handcart, VN1, VD4 or HD4 vacuum circuit breaker handcart at the same time, and the main busbar of the switch cabinet is through without transition cabinet transfer.
• There is ample space in the cable room, and the air gap between phases can be guaranteed to be greater than 300mm, and there is no need to install insulating partitions between phases.

Service environment

Normal Operating Conditions

A. Ambient temperature: -15 40
B. Ambient humidity:
Daily average RH no more than 95%;Monthly average RH no more than 90%
Daily average value of the steam pressure no more than 2.2k Pa, and montly no more than 1.8kPa

C. Altitude no higher than 1000m;
D. The air around without any pollution of duty,smoke,ercode or flammable air,steam or salty fog;
E. External vibration from switchgear and controlgear or land quiver can be neglected;
F. The voltage of the secondary electromagnetism interference induced in the system shall no more than 1.6kV.

Special Operating Conditions

According to IEC60694, GB/T11022, the manufacturer and user may agree on special service conditions whic hdeviate from the normal service conditions.

To prevent the condensation phenomena,the heater is necessary for switchgear and needs to be put into service

when the switchg ear is in readiness and service conditons. The heat dissipation probl em of switchg ear can be sloved by ventilation facilities.

Product Paramenters

Main technical parameters of switchgear

project
unit
parameter
Rated voltage
kV
40.5
Rated insulation level
1 min power frequency withstand voltage (effective value)
kV
Meet and face 95
Isolation fracture 118
Lightning impulse withstand voltage (peak value)
kV
185
215
One minute power frequency withstand voltage of auxiliary control circuit
V
2000
 
Rated frequency
Hz
50/60
Rated current
A
1250、1600、2000
Rated short-circuit breaking current
kA
20、25、31.5
Rated short-circuit making current (peak value)
kA
50、63、80
Rated short-time withstand current (4s)
kA
20、21.5、31.5
Rated peak withstand current
kA
50、60、80
Rated voltage of auxiliary control circuit
V
-100、-220、-220

Technical parameters of ZN85-40.5 vacuum circuit breaker

project
unit
parameter
Rated voltage
kV
40.5
Rated insulation level
power frequency withstand voltage (effective value)
kV
95
Lightning impulse withstand voltage (peak value)
kV
185
Rated frequency
Hz
50
Rated current
A
630,1250、1600、2000
Rated short-circuit breaking current
kA
20、25、31.5
Rated short-circuit making current (peak value)
kA
50、63、80
Rated short-time withstand current (4s)
kA
20、25、31.5
Rated peak withstand current
kA
50、63、80
Rated capacitor bank breaking current
A
630/400
Breaking times of rated short circuit breaking current
Times
20
Rated operation sequence
 
O-0.3s-CO-180s-CO
Opening time
ms
20-60
Closing time
ms
40-100
Mechanical time
Times
10000