Beijing GFUVE Instrument Transformer Manufacturer Co.,Ltd.
Beijing GFUVE Instrument Transformer Manufacturer Co.,Ltd. an exclusive current transformer, split core current transformer, current clamp & voltage transformer manufacturer.
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60mm High Voltage Cast Resin Ring Core Current Transformer for 35KV
LZCG series Cast Resin Straight-Through Current Transformer is suitable for current measurement and microcomputer protection of electrical equipment in 10KV and 35KV AC power system.
New magnetic material is taken to be the core of the current transformer, which has high magnetic permeability, low saturation magnetization and good stability. Therefore, the measuring accuracy is higher and the instrument security factor is lower. Since the high quality silicon processed by advanced technology is taken to be the core of the protection windings, which assured the accuracy limit factor is higher.
The semicircular ring core and secondary windings are vacuum poured by high quality epoxide resin in the fire retardant plastic casing, which has the characteristic of moisture proof, stable performance and dispensing with maintenance.Small size, light weight, small footprint, fixed in the ring network switchgear cable.The cable can cross the current transformer through its internal poles quickly and uniformly.
The Cast Resin Straight-Through Current Transformer can be divided several kinds according to the various current ratio, accuracy and rated loads. The specific parameters are showed in the corresponding to each model parameter tables.
Parameters
| Technical parameters | |
| Standards | IEC60044-1; IEC 61869-2; NTC 2205; ANSI C57.13; GB1208-2006 |
| Rated primary current | 30-1000A |
| Rated load | ≤30VA |
| Rated frequency | 50Hz or 60Hz |
| Rated secondary current | 5A or 1A |
| Rated short-time thermal current | 40kA, 1S |
| Rated continuous thermal current | 120%I1n |
| Secondary winding power-frequency voltage | 3kV, 1min |
| Instrument security factor | FS ≤10 |
| Mechanical parameters | |
| Dimensions (W×D×H) (mm) | φ60xφ155x60 |
| Weight (kg) | 3.6 |
| Operating conditions | |
| Operating temperature | -35°C to +55°C |
| Daily average temp | <+40°C |
| Storage temperature | -40°C to +70°C |
| Altitude | <3500 meters |
| Operating conditions - continued | |
| Condition | No existence of severely begrimed, erosive and radioactive gas in the air. Permission of long-term operation under rated current. |
Selection Guide
| Type | LZCG930-10 | LZCG930-10 | LZCG930-10 | |||||||
| Purpose | Measuring current transformer | Protection current transformer | Double winding current transformer | |||||||
| Rated primary current (AMP) | Accuracy class and rated load(VA) | Accuracy class and rated load(VA) | Composite accuracy class and rated load(VA) | |||||||
| 0.2S | 0.2 | 0.5 | 10P20 | 10P15 | 10P10 | 0.2S | 0.5 | 10P15 | 10P10 | |
| 30 | 2 | |||||||||
| 40 | 2.5 | |||||||||
| 50 | 3.75 | 2 | ||||||||
| 75 | 3.75 | 5 | 2 | 3.75 | ||||||
| 100 | 2.5 | 5 | 7.5 | 2.5 | 3.75 | |||||
| 150 | 5 | 7.5 | 10 | 2.5 | 3.75 | 6.25 | 2.5 | 3.75 | 2.5 | |
| 200 | 7.5 | 10 | 15 | 3.75 | 5 | 7.5 | 5 | 7.5 | 3.75 | |
| 300 | 10 | 15 | 20 | 5 | 7.5 | 10 | 7.5 | 10 | 2.5 | 5 |
| 400 | 15 | 20 | 25 | 6.25 | 7.5 | 15 | 10 | 12.5 | 3.75 | 5 |
| 500 | 20 | 25 | 25 | 6.25 | 7.5 | 15 | 15 | 15 | 3.75 | 5 |
| 600 | 20 | 30 | 30 | 7.5 | 10 | 20 | 15 | 20 | 3.75 | 7.5 |
The product picture:
