Active Member
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[China]
Address: Oriental HuaRui A, No. 150 Guanzhuang Road, Chaoyang District, Beijing, 100024, China
Contact name:Andy
Beijing GFUVE Instrument Transformer Manufacturer Co.,Ltd. |
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Cast Resin Zero Sequence Current Transformer Indoor
Introduction
Current transformers typically consist of a silicon steel ring core wound with many turns of copper wire as shown in the illustration to the right. The conductor carrying the primary current is passed through the ring. The CT's primary, therefore, consists of a single 'turn'. The primary 'winding' may be a permanent part of the current transformer, i.e. a heavy copper bar to carry current through the core. Window-type current transformers (aka zero sequence current transformers, or ZSCT) are also common, which can have circuit cables run through the middle of an opening in the core to provide a single-turn primary winding. To assist accuracy, the primary conductor should be centered in the aperture.
PARAMETERS
| Technical parameters | |
| Standards | IEC60044; DL/T 653; JB/T 8970 |
| Rated load | ≤150VA |
| Rated frequency | 50Hz or 60Hz |
| Cosø | 0.8 (lag) |
| Phase number | Single |
| Rated insulation level | 12/42/75KV,7.2/32/60KV |
| Class of pollution | II |
| Mechanical parameters | |
| Material | Epoxy resin |
| Weight (kg) | 23 |
| Operating conditions | |
| Operating temperature | -25°C to +55°C |
| Daily average temp | <+40°C |
| Storage temperature | -40°C to +70°C |
| Altitude | <1000 meters |
| Condition | No existence of severely begrimed, erosive and radioactive gas in the air. Permission of long-term operation under rated current. |
SELECTION GUIDE
| Model | Class Combination | Accuracy class and Rated output (VA) | Discharge Capacity (Mvar) | |||
| 0.2 | 0.5 | 1 | 3 | |||
| GFFDN0224-1.7G/6 | 6/√3/0.1/√3/0.1/3 | 15 | 30 | 60 | 150 | 1.7 |
| GFFDN0224-1.7G/10 | 10/√3/0.1/√3/0.1/3 | |||||
| GFFDN0224-1.7G/11 | 11/√3/0.1/√3/0.1/3 | |||||
Overall Dimensions
