Description
- Place of Origin: China (Mainland)
- Brand Name: SIHU
- Model Number: LZZB7-35
- Transformer: Medium Voltage 35kV Current Transformer
- Quality warranty: 18 months
- Color: Brown
- Service condition: Indoor or ouitdoor
- Insulation material: Epoxy resin
- Coil Structure: Toroidal
1. Application:
Guangdong Sihui instrument current transformers are widely used in commercial, industrial and residential areas. They are for current measuring and protection, delivering high accuracy in current metering. Our current transformers are having a wide range, including epoxy resin medium voltage current transformers, epoxy resin Low voltage current transformers, oil immerged current transformers, dry-type high voltage current transformers and gas SF6 high voltage current transformers and so on.
2. Main Features
1).All outside parts, such as terminal box and mounting plate, are made of corrosion proof materials.
2). Low partial discharge
3). Matching different sizes switchgears
4). Used in current measuring and protection, high accuracy
5). Less maintenance and pollution free
6). Easily operated and mounted
7). High mechanical strength and high dielectric strength
8).For cast resin current transformers, we have: post type CTs, contact cover enclosed CTs, wall gone-thru CTs, bar type CTs, special application CTs, plateau type CTs, TAT CTs , low voltage CTs, ring type CTs , window type CTs and CTs for residual current and so on.
3. Technical Specifications
1) Rated Primary Current: up to 8000A
2) Rated Secondary Current: 1A or 5A
3) Rated Primary Voltage: 0.66kV up to 1000kV
4) Thermal Burden Value: up to 200VA or custom specified
5) Insulation Material: epoxy resin, oil or gas SF6
6) Winding: high quality enameled copper wire
7) Frequency: 50Hz or 60Hz
8) Accuracy Class: 0.2, 0.5, 10P10, 10P, 3, 0.2S, 0.5S, PR, PX and PTS and so on
9) Installation Place: indoor or outdoor
10) Multi windings, up to 3 windings or more
*Except for the parameters listed above, we can design as per clients’ requirements.
4. Manufacturing Standard: IEC 61869-2:2012, GB20840.2.
5.Technical Parameters for LZZB7-35 Current Transformers.
Technical Parameters Table
|
Rated Primary Current In
(A)
|
Accuracy Class
|
Rated Output at Relative Accuracy Class of Common Twin Secondary Windings,
cosΦ=0.8 (lag)(VA)
|
Rated Short-time Thermal Current Ith
(r.m.s.)(kA)
|
Rated Dynamic Current Idyn (Peak)
(kA)
|
Rated Insulation Level
(kV)
|
|
Cl. 0.2S
|
Cl. 0.2
|
Cl.0.5S
|
Cl. 0.5
|
Cl. 5P
|
Cl.10P
|
|
15~100
|
0.2S/0.2
0.5S/0.5
5P10 (15/20)
10P10 (15/20)
|
15
|
20
|
20
|
3~20
|
8~50
|
40.5/95/185
|
|
150
|
25
|
62.5
|
|
200
|
20
|
20
|
30
|
3.15
|
80
|
|
300~500
|
30
|
30
|
30
|
3.15
|
80
|
|
600~800
|
|
1000~2000
|
40
|
100
|
| |
|
|
|
|
|
|
|
|
|
|
Notes:
1. Those listed in the table above are the routine parameters, if there is any different parameter required, we can design it according to the technical parameters of the clients.
2. Detailed technical data and outline drawings are provided upon request.

Guangdong Sihui Instrument Transformer Works Co., Ltd.
Year Established:2003
Business Type:Manufacturer, Trading Company
Management Certifiation:
Operational Address: No. 8, Fuhua Road, Dongcheng Street, Sihui, Zhaoqing, Guangdong, China (Mainland)
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