CGIS9817S Current Transformer for Inflatable Switchgear

Synthèse de décision produit

CGIS9817S is a three-phase integrated current transformer for 35kV inflatable switchgear, offering customizable accuracy and primary current ranges. Suitable for metering and protection in RMU applications.

Limites d'adéquation et d'inadéquation

Topologie et câblage

For current transformers (CT), secondary terminals are designated 1S1/1S2 for the main winding, and 2S1/2S2 for the protection winding if present. Never open-circuit the secondary of a CT while energized – hazardous voltage may occur. Ground the secondary circuit at one point only, in accordance with IEC 61869-2 and IEEE C57.13. Ensure shorting links are provided before disconnecting the secondary wiring.

Normes et conformité

Conforme à : [On Request]

• Rapport d'essai de type : [On Request]
• Certificat d'étalonnage : [On Request]

Calcul de charge et d'erreur (IEEE C57.13)

S_total = ΣS_instrument + I₂² × (ρ × 2L / A)

• Si S_total < 0.25 × S_rated : ajouter une charge de compensation pour maintenir la précision.
• Si S_total > S_rated : la classe de précision ne peut pas être garantie.

FAQ produit

CGIS7515S, 9817S, 1021S Current Transformer for Gas-Insulated Switchgear — Technical Data