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LZZB9-24/220b/2(4) Type Current Transformer
Applications
Current transformer is suitable for power measurement, current monitoring and relay protection in power system with rater frequency 50Hz or 60Hz and rater voltage 10kV.
Applicable Standard: IEC60044-1, GB 1208 ¡¶Current transformer¡·.
Type Designation
Technical Parameter


Technical parameters of LZZB9-24/220b/2 Type Current Transformer
Model
Rated primary current
(A)
Combined accuracy classes
Rated output
(VA)
Rated short-time thermo current
(kA/s)
Rated dynamic stability current
(kA/s)
LZZB9-24/220b/2
20
0.2/0.2
0.2/0.5
0.2/10P10
0.5/10P10
0.2/10P15
0.5/10P15
10/10
10/10
10/20
10/20
10/15
10/15
3
7.5
30
4.5
11.25
40
6
15
50
7.5
18.75
75
11.25
28.125
100
15
37.5
150
22.5
56.25
200
31.5
80
300
45
112.5
400
500
600
0.2/0.2
0.2/0.5
0.2/10P10
0.5/10P10
0.2/10P15
0.5/10P15
15/15
15/20
10/30
15/30
10/20
15/20
63
130
800
1000
80
160
1200
1250
1500
0.2/0.2
0.2/0.5
0.2/10P10
0.5/10P10
0.2/10P15
0.5/10P15
20/20
20/30
20/30
30/30
20/20
30/20
100
160
1600
2000
2500


Technical parameters of LZZB9-24/180b/4 Type Current Transformer

Model
Rated primary current
(A)
Combined accuracy classes
Rated output
(VA)
Rated short-time thermo current
(kA/s)
Rated dynamic stability current
(kA/s)
LZZB9-24/220b/4
20
0.2/0.2/0.2
0.2/0.5/0.5
0.2/10P10/10P10
0.5/10P10/10P10
0.2/10P15/10P15
0.5/10P15/10P15
10/10/10
10/15/15
10/20/20
10/20/20
10/15/20
10/15/20
3
7.5
30
4.5
11.25
40
6
15
50
7.5
18.75
75
11.25
28.125
100
15
37.5
150
22.5
56.25
200
31.5
80
300
45
112.5
400
500
600
0.2/0.2/0.2
0.2/0.5/0.5
0.2/10P10/10P10
0.5/10P10/10P10
0.2/10P15/10P15
0.5/10P15/10P15
15/15/20
15/20/20
10/20/30
15/20/30
10/15/20
15/15/20
63
130
800
1000
80
160
1200
1250
1500
0.2/0.2/0.2
0.2/0.5/0.5
0.2/10P10/10P10
0.5/10P10/10P10
0.2/10P15/10P15
0.5/10P15/10P15
20/20/20
20/30/30
20/30/30
30/30/30
20/20/20
30/20/20
100
160
1600
2000
2500

Rated secondary current: 5A or 1A.
Rated insulation level£º24/65/125kV¡£
Operation Conditions
Installation area: Indoor.
Ambient temperature: Max. temperature 40¡æ;Min. temperature -5¡æ;Daily average temperature can't exceed 30¡æ.
Air conditions: No heavy pollution in air.
Structure and Feature
Current transformer have the whole-sealed structure with epoxty resin as its main insulation. Its core adopts the crystallitic alloy or excellent silicon steel sheets to enwind becoming annular, then secondary leads are enwinded on it evenly. Primary conducts are winded by insulation belt to avoid short circuit between conducts. There are earth bolts and holes suitable for mounting on the bottom of the product suitable the mounting.
Outline and Mounting Dimensions

Information Required for Order Placing
Model.
Rated current ratio A.
Combined accuracy classes and Rated output VA.
Altitude m.