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Lb6-110 Lb7-220 Type Oil-Immersed Oil-Filled Hair-Pin Type Fully sealed Structure Current Transformer CT with Protection Class 35kv, 66kv, 110kv, 220kv, 330kv power system

LB6-35(33)(TA,TH)(W1,W2,W3)/LABN6-35

Oil-immersed/filled outdoor single phase current transformer

 

 

Type description

LB6-35(33)(TA,TH)(W1,W2,W3)

L: Current transformer

B: With protective class

6: Design no.

35(33): Rated voltage(kV)

TA: Dry tropical zone

TH: Wet tropical zone

W1,W2,W3: Pollution level

 

LB6-35(33)(TA,TH)(W1,W2,W3)  100Ipn  2.5Ith  altitude≤1000m or ≤3500m

LB6-35(33)(TA,TH)(W1,W2,W3)  5-500A  600-1000A  1200-1600A  2000A  Oil weight  total weight

 

LVB(T)1-35(W1,W2,W3)

Oil-immersed/filled outdoor single phase current transformer

 

 

Type description

LVB(T)1-35(W1,W2,W3)

L: Current transformer

V: Inverted type structure

B: With protective class

T: With transient protective class

1: Design no.

35: Rated voltage(kV)

W1,W2,W3: Pollution level

 

LVB(T)1-35(W1,W2,W3)  100Ipn  2.5Ith  altitude≤1000m or ≤3500m  0.2  0.2S  0.5  0.5S  5P  10P

transient protective winding  accuracy class TPY

 

Primary conductive bar  Metal expander  porcelain bushing

Oil weight   total weight

 

Rated primary current I1n(A)

Thermal current/second

(kA effective value)

Ith/1s

(kA r.m.s)

Dynamic stable current

(kA peak)

Idyn

Accuracy class combination

1S/2S/3S/4S

Rated secondary output(VA)

Surface creepage distance(mm)

Double transformation ratio

Single transformation ratio

Thermal current/4 seconds

(kA effective value)

Ith/4s

(kA r.m.s)

two transformation ratio

three transformation ratio

Short time thermal current

(kA effective value)

Ith

(kA r.m.s)

Accuracy limit factor ALF

15, 20,25,30

Porcelain bushing creepage distance(mm)

Rated current ratio(A)

Rated resistance burden Rb(Ω)

7.5,10,15,20

Rated symmetrical short-circuit current factor K

10,15,20

Primary time constant Tp

40,60,80,100

Duty cycle

C-0.1s-O

C-0.1(0.04)s-O

C-0.1s-O-0.5s-C-0.1(0.04)s-O

 

 

 

 

 

 



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