Low-Voltage Current Transformer
●Current, electrical energy measurement or relay protection in 50Hz/60Hz A.C. circuits
●Rated voltage ≤0.5kV
●Middle open window area for let-through bus and Metal plate base for CT fixing installation
●Fully encapsulated by unsaturated resin casting.
Applications/Features:
●Current, electrical energy measurement or relay protection in 50Hz/60Hz A.C. circuits
●Rated voltage ≤0.5kV
●Middle open window area for let-through bus and Metal plate base for CT fixing installation
●Fully encapsulated by unsaturated resin casting.
●Comply to GB20840.1, GB20840.2, JJG1021 etc. relevant standard requirements
Service Conditions:
|
Installation location: |
Indoor and serious vibration and earth tremors are negligible |
|
Ambient Temperature: |
－5℃～＋40℃ |
|
Relative Humidity: |
Less than 80% |
|
Altitude: |
Not exceeding than1000m |
|
Atmosphere: |
No obvious contaminations, such as dust, smoke, corrosive gases, vapors or salt etc |
Technical Specification:
|
Rated Voltage: |
0.5 | 0.66kV |
|
Working frequency: |
50/60Hz |
|
Rated secondary current: |
5A/1A |
|
Polarity: |
Subtractive |
|
Rated Power Factor: |
cosφ=0.8 (lagging) |
|
Rated continuous thermal current: |
1.2 |
|
Rated insulation level: |
0.72/3kV |
|
Service life: |
MTTF: more than 20 years under normal operations |
|
Terminal indication |
P1、P2: Primary S1、S2: Secondary |
LMZ Series Low-Voltage Current Transformer
Outline Dimensions:
1.LMZ（J）1-0.5 /5～400A
|
Model |
Rated Primary Current (A) |
H |
h |
D |
d |
|
LMZ1-0.5 |
5，10，20，50，100 |
119 |
71 |
94 |
25 |
|
15，30，40，75，150，200 |
30 |
||||
|
250,300 |
125 |
74 |
97 |
35 |
|
|
400 |
45 |
||||
|
LMZJ1-0.5 |
5～300 |
35 |
|||
|
40,200,400 |
45 |
2.LMZJ1-0.5 /500～800A
|
Model |
Rated Primary Current (A) |
H |
h |
D |
d |
B |
N |
b |
|
LMZJ1-0.5 |
500,600 |
130 |
75 |
106 |
40 |
46 |
9 |
53 |
|
750,800 |
140 |
80 |
115 |
50 |
52 |
12 |
63 |
3.LMZJ1-0.5 /1000～4000A
|
Model |
Rated Primary Current(A) |
A1 |
A2 |
B |
h |
H |
L1 |
L2 |
E |
C |
|
LMZJ1-0.5 |
1000，1200，1500 |
171 |
98 |
50 |
91 |
152 |
152 |
120 |
37 |
41 |
|
2000，3000，4000 |
216 |
138 |
70 |
102 |
182 |
175 |
150 |
42 |
46 |
BH Series Low-Voltage Current Transformer
Outline dimensions:
|
Model |
Rated Current Ratio |
Rated Secondary Burden（VA） |
Primary Turns |
Note |
||||
|
1 class |
0.5 Class |
0.5S Class |
0.2 Class |
0.2S Class |
||||
|
BH-0.66Ⅰ LMK-0.66 |
5/5-75/5 |
5 |
2.5 |
/ |
/ |
/ |
/ |
Figure 1 |
|
5/1-75/1 |
5 |
2.5 |
/ |
/ |
/ |
/ |
||
|
BH-0.66 20Ⅰ |
75/5-100/5 |
2.5 |
/ |
/ |
/ |
/ |
1 |
|
|
75/1-100/1 |
2.5 |
/ |
/ |
/ |
/ |
1 |
Figure 2 |
|
|
BH-0.66 30Ⅰ LMZ-0.66/30 |
30∕5 |
5 |
2.5 |
/ |
/ |
/ |
5 |
Figure 3 |
|
50∕5 |
5 |
2.5 |
/ |
/ |
/ |
3 |
||
|
75∕5 |
5 |
2.5 |
/ |
/ |
/ |
2 |
||
|
75∕5 |
2.5 |
/ |
/ |
/ |
/ |
1 |
||
|
100∕5 |
2.5 |
/ |
/ |
/ |
/ |
1 |
||
|
100∕5 |
5 |
5 |
/ |
/ |
/ |
2 |
||
|
150∕5 |
5 |
2.5 |
/ |
/ |
/ |
1 |
||
|
200∕5-400∕5 |
5 |
5 |
/ |
/ |
/ |
1 |
||
|
30/1 |
0.5 |
2.5 |
/ |
/ |
/ |
5 |
||
|
50/1 |
0.5 |
2.5 |
/ |
/ |
/ |
3 |
||
|
75/1 |
2.5 |
1 |
/ |
/ |
/ |
1 |
||
|
75/1 |
5 |
2.5 |
/ |
/ |
/ |
2 |
||
|
100/1 |
2.5 |
/ |
/ |
/ |
/ |
1 |
||
|
100/1 |
5 |
5 |
/ |
/ |
/ |
2 |
||
|
150/1 |
5 |
2.5 |
/ |
/ |
/ |
1 |
||
|
200/1-300/1 |
5 |
5 |
/ |
/ |
/ |
1 |
||
|
BH-0.66 30ⅠB LMZ-0.66/30 B |
30∕5 |
/ |
/ |
2.5 |
2.5 |
/ |
5 |
Figure 4 |
|
50∕5 |
/ |
/ |
2.5 |
2.5 |
/ |
3 |
||
|
75∕5 |
/ |
/ |
2.5 |
2.5 |
/ |
2 |
||
|
75∕5 |
5 |
5 |
/ |
/ |
/ |
1 |
||
|
100∕5 |
2.5 |
2.5 |
/ |
/ |
/ |
1 |
||
|
100∕5 |
/ |
/ |
5 |
5 |
5 |
2 |
||
|
150∕5 |
/ |
/ |
2.5 |
2.5 |
2.5 |
1 |
||
|
200∕5-300∕5 |
/ |
/ |
5 |
5 |
5 |
1 |
||
|
30/1 |
2.5 |
/ |
/ |
/ |
/ |
5 |
||
|
50/1 |
2.5 |
/ |
/ |
/ |
/ |
3 |
||
|
75/1-100/1 |
5 |
2.5 |
/ |
/ |
/ |
2 |
||
|
150/1 |
5 |
2.5 |
/ |
/ |
/ |
1 |
||
|
200/1-250/1 |
5 |
5 |
/ |
2.5 |
/ |
1 |
||
|
BH-0.66 40Ⅰ LMZ-0.66/40 |
30∕5 |
5 |
2.5 |
/ |
/ |
/ |
5 |
Figure 5 |
|
50∕5 |
5 |
2.5 |
/ |
/ |
/ |
3 |
||
|
75∕5 |
5 |
2.5 |
/ |
/ |
/ |
2 |
||
|
75∕5-100∕5 |
2.5 |
/ |
/ |
/ |
/ |
1 |
||
|
100∕5 |
5 |
5 |
/ |
/ |
/ |
2 |
||
|
150∕5 |
5 |
2.5 |
/ |
/ |
/ |
1 |
||
|
200∕5-400∕5 |
5 |
5 |
/ |
/ |
/ |
1 |
||
|
500∕5-600∕5 |
10 |
10 |
5 |
5 |
5 |
1 |
||
|
30/1 |
5 |
2.5 |
/ |
/ |
/ |
2 |
||
|
50/1-75/1 |
5 |
2.5 |
/ |
/ |
/ |
1 |
||
|
100/1-150/1 |
5 |
2.5 |
/ |
/ |
/ |
1 |
||
|
200/1-400/1 |
5 |
5 |
/ |
/ |
/ |
1 |
||
|
500/1 |
10 |
10 |
/ |
5 |
/ |
1 |
||
|
BH-0.66 50Ⅰ LMZ-0.66/50 |
150∕5 |
2.5 |
/ |
/ |
/ |
/ |
1 |
Figure 6 |
|
200∕5 |
5 |
2.5 |
/ |
/ |
/ |
1 |
||
|
250∕5-400∕5 |
5 |
5 |
/ |
/ |
/ |
1 |
||
|
500∕5-600/5 |
10 |
10 |
5 |
5 |
5 |
1 |
||
|
750∕5-1000∕5 |
10 |
10 |
10 |
10 |
5 |
1 |
||
|
1200∕5 |
20 |
20 |
20 |
20 |
5 |
1 |
||
|
150/1 |
2.5 |
/ |
/ |
/ |
/ |
1 |
||
|
200/1-400/1 |
5 |
5 |
/ |
/ |
/ |
1 |
||
|
500/1-600/1 |
10 |
10 |
/ |
5 |
/ |
1 |
||
|
750/1-1000/1 |
10 |
10 |
/ |
10 |
/ |
1 |
||
|
BH-0.66 60ⅠLMZ-0.66/60 |
200∕5 |
5 |
/ |
/ |
/ |
/ |
1 |
Figure 7 |
|
250∕5-400∕5 |
5 |
5 |
/ |
/ |
/ |
1 |
||
|
500∕5-600∕5 |
10 |
10 |
5 |
5 |
5 |
1 |
||
|
750∕5-1000∕5 |
10 |
10 |
10 |
10 |
5 |
1 |
||
|
1200∕5 |
20 |
20 |
20 |
20 |
5 |
1 |
||
|
1500/5 |
20 |
20 |
20 |
20 |
10 |
1 |
||
|
200/1 |
5 |
/ |
/ |
/ |
/ |
1 |
||
|
250/1-400/1 |
5 |
5 |
/ |
/ |
/ |
1 |
||
|
500/1-600/1 |
10 |
10 |
/ |
5 |
/ |
1 |
||
|
750/1-1000/1 |
10 |
10 |
/ |
10 |
/ |
1 |
||
|
1200/1 |
20 |
20 |
/ |
20 |
/ |
1 |
||
|
BH-0.66 80Ⅰ LMZ-0.66/80 |
300∕5-400∕5 |
5 |
5 |
/ |
/ |
/ |
1 |
Figure 8 |
|
500∕5-600∕5 |
10 |
10 |
/ |
/ |
/ |
1 |
||
|
750∕5-1000∕5 |
10 |
10 |
10 |
10 |
5 |
1 |
||
|
1200∕5 |
20 |
20 |
20 |
20 |
5 |
1 |
||
|
1500∕5-2000∕5 |
20 |
20 |
20 |
20 |
10 |
1 |
||
|
300/1-400/1 |
5 |
5 |
/ |
/ |
/ |
1 |
||
|
500/1-600/1 |
10 |
10 |
/ |
/ |
/ |
1 |
||
|
750/1-1000/1 |
10 |
10 |
/ |
10 |
/ |
1 |
||
|
1200/1-1500/1 |
20 |
20 |
/ |
20 |
/ |
1 |
||
|
BH-0.66 100ⅠLMZ-0.66/1000 |
600∕5 |
10 |
10 |
/ |
/ |
/ |
1 |
Figure 9 |
|
750∕5-1000∕5 |
10 |
10 |
10 |
10 |
5 |
1 |
||
|
1200∕5 |
20 |
20 |
20 |
20 |
5 |
1 |
||
|
1200∕5-2000∕5 |
20 |
20 |
20 |
20 |
10 |
1 |
||
|
2500∕5 |
40 |
40 |
40 |
40 |
10 |
1 |
||
|
600/1-1000/1 |
10 |
10 |
/ |
10 |
/ |
1 |
||
|
1200/1-2000/1 |
20 |
20 |
/ |
20 |
/ |
1 |
||
|
BH-0.66 120Ⅰ LMZ-0.66/120 |
1000∕5 |
10 |
10 |
10 |
10 |
5 |
1 |
Figure 10 |
|
1200/5 |
20 |
20 |
20 |
20 |
5 |
1 |
||
|
1500∕5-2000∕5 |
20 |
20 |
20 |
20 |
10 |
1 |
||
|
2500∕5-4000∕5 |
40 |
40 |
40 |
40 |
10 |
1 |
||
|
1000/1 |
10 |
10 |
/ |
10 |
/ |
1 |
||
|
1200/1-2000/1 |
20 |
20 |
/ |
20 |
/ |
1 |
||
|
2500/1-3000/1 |
40 |
40 |
/ |
40 |
/ |
1 |
||
LQG Series Low-Voltage Current Transformer
Applications/Features:
Current, electrical energy measurement or relay protection in 50Hz/60Hz AC circuit
Rated voltage: 0.66kV or below
With plastic casing and full encapsulation
Comply to GB20840.1, GB20840.2 and JJG1021 etc. standard requirements
Service Conditions:
|
Installation location: |
Indoor and serious vibration and earth tremors are negligible |
|
Ambient Temperature: |
－5℃～＋40℃ |
|
Relative Humidity: |
Less than 80% |
|
Altitude: |
Not exceeding than1000m |
|
Atmosphere: |
No obvious contaminations, such as dust, smoke, corrosive gases, vapors or salt etc |
Technical Specification:
|
Rated Voltage: |
0.66kV |
|
Working frequency: |
50Hz |
|
Rated secondary current: |
5A |
|
Rated continuous thermal current: |
1.2 |
|
1 Second Thermal current (r.m.s) （kA） |
50Ipr |
|
Dynamic stable current (Peak value) (kA) |
100Ipr |
|
Polarity: |
Subtractive |
|
Rated Power Factor: |
cosφ=0.8 (lagging) |
|
Rated insulation level: |
0.72/3kV |
|
Service life: |
MTTF: more than 20 years under normal operations |
|
Terminal indication |
P1、P2: Primary S1、S2: Secondary |
|
Model |
Rated Current Ratio（A） |
Rated Burden |
||
|
0.5 |
0.5S |
0.2 |
||
|
LQG-0.66A |
5/5-400/5 |
10 |
10 |
5 |
|
500/5-1500/5 |
10 |
10 |
10 |
|
|
LQG-0.66B |
5/5-1500/5 |
10 |
10 |
10 |
Outline dimensions:
1.LQG-0.66A
2.LQG-0.66B
FAQ
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