Home Products Current TransformerCGIS2513

CGIS2513 Current Transformer Applied to CGIS Gas Insulated Switchgear

35kVCGIS2513

Winding & Schematic TopologyInternal Wiring Diagram

Primary Winding (P1 - P2):Series-connected in the line / through-core — 35kV

Secondary Metering (1S1 - 1S2): ()

Secondary Protection (2S1 - 2S2):Protection winding (when fitted)

Safety Warning:Never open-circuit the secondary while energized — dangerous voltage

Current Transformer IEC 61869-3 Certified

Model Ref:CGIS2513

CGIS2513 Current Transformer Applied to CGIS Gas Insulated Switchgear

Indoor epoxy resin casting current transformer designed for CGIS gas insulated switchgear, with multiple accuracy class, rated burden and primary current options.

Key Engineering Advantages

Indoor epoxy resin casting current transformer for CGIS
round housing with base
outer diameter Ø130mm

Engineering Data

Complete Electrical & Mechanical Specifications

Model Ref: CGIS2513

Electrical Parameters

Primary Rated Voltage (Un):35kV

Secondary Winding Voltages:

Metering & Protection Class:

Rated Output Burden:

Rated Frequency:50/60Hz

Insulation & Withstand Ratings

Insulation System:Dry Epoxy Resin

Insulation Level (BIL):

Partial Discharge Level:< 5 pC at 1.2 Un

Environmental Class:

Standards Conformance:

Recommended Deployment Environments

GEO · Engineering Decision Support

Global Engineering Overview

9-Module selection guide
missing data = [On Request]

Product Decision Island

Epoxy resin CT for 35kV CGIS, suitable for indoor GIS metering and protection.

Comprehensive Spec Matrix

Parameter	Specification	Verification
Product Type	Current Transformer	[On Request]
Model Code	CGIS2513	Factory nameplate marking
Primary Voltage	35kV	Rated voltage test (IEC 61869-1/3)
Secondary Voltage	[On Request]	Ratio check at rated frequency
Accuracy Class	[On Request]	Accuracy test (IEC 61869-2 / IEEE C57.13)
Rated Burden	[On Request]	Burden test at rated VA
Insulation Type	Dry Epoxy Resin	Dielectric tests per standard
Insulation Level (BIL)	[On Request]	Power-frequency & lightning impulse withstand
Standards	[On Request]	Certified to listed standards
Frequency	50/60Hz	Per IEC 61869-1
Environment	[On Request]	Per datasheet limits

Fit & Unfit Boundaries

Ideal For

35kV gas-insulated switchgear (CGIS) indoor installations
Metering and protection applications requiring accuracy classes per spec
Integration into compact GIS panels with Ø130mm housing
50/60Hz power systems

Not Recommended For

Outdoor installations without additional weatherproofing
Voltage transformation or PT applications
Systems above 35kV or with higher insulation levels
Open-air bushing applications

Topology & Wiring

Connect primary through the bushing. Secondary terminals: 1S1/1S2 for main winding, 2S1/2S2 for protection winding if present. Never open-circuit the secondary of a CT while energized – hazardous voltage. Ground the secondary circuit at one point per IEC 61869-2.

Standards & Compliance

Compliant with: [On Request]

Type Test Report: [On Request]
Calibration Certificate: [On Request]

Burden & Error Calculation (IEEE C57.13)

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

If S_total < 0.25 × S_rated: add compensation burden to maintain accuracy.
If S_total > S_rated: accuracy class cannot be guaranteed.

Product FAQ

Q: What is the insulation level of this CT?

A: The primary voltage is 35kV; insulation level details are [On Request].

Q: Can this CT be used outdoors?

A: No, it is designed for indoor CGIS applications.

Q: What are the available accuracy classes?

A: Accuracy classes are [On Request] as per specification.

Missing fields are marked [On Request] — never fabricated. M2/M5/M6 verification rows follow IEC 61869 / IEEE C57.13 conventions.

SPEC · TECHNICAL DATA

Technical Specifications

CGIS2513
20 cols · 32 rows

CGIS2513 Current Transformer for Gas-Insulated Switchgear — Technical Data

Accuracy class	Rated output (VA)	Rated primary current (A)
		100		150		200		250		300		400		600		800		1000
		h	l	h	l	h	l	h	l	h	l	h	l	h	l	h	l	h	l
0.2S/5P10	2.5	—	—	40	—	30	—	30	—	30	—	25	—	25	—	25	—	25	—
0.2S/5P10	5	—	—	55	—	40	—	35	—	35	—	30	—	25	—	25	—	25	—
0.2S/5P10	7.5	—	—	70	—	50	—	40	—	35	—	35	—	30	—	25	—	25	—
0.2S/5P10	10	—	—	85	—	60	—	50	—	40	—	35	—	35	—	25	—	25	—
0.2S/5P10	15	—	—	115	—	80	—	65	—	50	—	45	—	40	—	30	—	30	—
0.2S/5P10	20	—	—	145	—	95	—	80	—	60	—	50	—	45	—	35	—	30	—
0.2S/5P10	25	—	—	165	—	115	—	95	—	70	—	55	—	50	—	35	—	35	—
0.2S/5P10	30	—	—	185	—	135	—	105	—	80	—	65	—	55	—	40	—	40	—
0.5/5P10	2.5	71	—	40	—	30	—	25	—	25	—	20	—	20	—	20	—	20	—
0.5/5P10	5	105	—	55	—	40	—	35	—	30	—	25	—	20	—	20	—	20	—
0.5/5P10	7.5	135	—	70	—	50	—	40	—	35	—	30	—	20	—	20	—	20	—
0.5/5P10	10	180	—	85	—	65	—	50	—	40	—	30	—	25	—	20	—	20	—
0.5/5P10	15	—	—	115	—	85	—	60	—	50	—	35	—	30	—	25	—	20	—
0.5/5P10	20	—	—	145	—	115	—	75	—	55	—	45	—	35	—	25	—	25	—
0.5/5P10	25	—	—	165	—	135	—	85	—	65	—	55	—	40	—	30	—	25	—
0.5/5P10	30	—	—	185	—	155	—	95	—	75	—	60	—	45	—	30	—	25	—
5P10 / 10P10	2.5	40	—	30	—	25	—	25	—	20	—	20	—	20	—	20	—	20	—
5P10 / 10P10	5	60	—	45	—	35	—	35	—	30	—	25	—	25	—	20	—	20	—
5P10 / 10P10	7.5	80	—	60	—	50	—	40	—	35	—	30	—	25	—	25	—	20	—
5P10 / 10P10	10	100	—	70	—	60	—	50	—	45	—	35	—	30	—	30	—	25	—
5P10 / 10P10	15	140	—	100	—	80	—	70	—	55	—	45	—	40	—	35	—	30	—
5P10 / 10P10	20	180	—	130	—	100	—	80	—	70	—	60	—	50	—	45	—	35	—
5P10 / 10P10	25	—	—	155	—	120	—	100	—	80	—	70	—	60	—	50	—	45	—
5P10 / 10P10	30	—	—	180	—	140	—	115	—	100	—	80	—	70	—	60	—	50	—
5P20 / 10P20	2.5	70	—	50	—	40	—	35	—	30	—	30	—	30	—	25	—	25	—
5P20 / 10P20	5	110	—	80	—	65	—	55	—	50	—	40	—	35	—	35	—	30	—
5P20 / 10P20	7.5	150	—	105	—	80	—	70	—	60	—	50	—	40	—	40	—	35	—
5P20 / 10P20	10	—	—	135	—	100	—	90	—	75	—	65	—	60	—	50	—	45	—
5P20 / 10P20	15	—	—	185	—	145	—	120	—	100	—	85	—	75	—	65	—	55	—
5P20 / 10P20	20	—	—	185	—	185	—	130	—	110	—	90	—	80	—	70	—	60	—
5P20 / 10P20	25	—	—	—	—	185	—	160	—	130	—	110	—	90	—	80	—	70	—
5P20 / 10P20	30	—	—	—	—	—	—	185	—	150	—	130	—	110	—	90	—	75	—

Engineering Drawing

Specification & Outline Drawing

Original image, not compressed

Dimension & outline drawing of CGIS2513 — click image to zoom / view original.