Home Products Current TransformerCGIS1910

CGIS1910 Current Transformer Applied to CGIS Gas Insulated Switchgear

35kVCGIS1910

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:CGIS1910

CGIS1910 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
outer diameter Ø98mm

Engineering Data

Complete Electrical & Mechanical Specifications

Model Ref: CGIS1910

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

Indoor epoxy resin CT for CGIS at 35kV; multiple accuracy and burden options.

Comprehensive Spec Matrix

Parameter	Specification	Verification
Product Type	Current Transformer	[On Request]
Model Code	CGIS1910	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 applications
Current measurement and protection in GIS
Metering and relay protection with multiple accuracy classes
50/60Hz power systems

Not Recommended For

Outdoor installations
Voltage transformation (PT applications)
Non-gas-insulated switchgear (AIS) retrofits
Systems above 35kV

Topology & Wiring

connect secondary terminals 1S1/1S2 for metering, 2S1-2S2 for protection. Never open-circuit the secondary of a CT while energized - hazardous voltage. Ground the secondary winding 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 primary voltage rating?

A: 35kV.

Q: What is the insulation type?

A: Dry epoxy resin.

Q: What is the outer diameter?

A: Ø98mm.

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

CGIS1910
32 cols · 35 rows

CGIS1910 Current Transformer for Gas-Insulated Switchgear — Technical Data

Accuracy class	Rated output (VA)	(50)		(60)		(75)		(100)		(125)		(150)		(200)		(250)		(300)		(400)		(500)		(600)		(750)		(1000)		(1200)
Accuracy class	Rated output (VA)	h	l	h	l	h	l	h	l	h	l	h	l	h	l	h	l	h	l	h	l	h	l	h	l	h	l	h	l	h	l
0.2FS10 / 0.5FS10	2.5	—	—	—	—	—	—	130	100	65	45	35	30	30	30	30	30	30	30	30	30	30	35	35	—	—	—	—	—	—	—
0.2FS10 / 0.5FS10	5	—	—	—	—	—	—	165	100	65	50	40	30	30	30	30	30	30	30	30	30	30	35	35	—	—	—	—	—	—	—
0.2FS10 / 0.5FS10	10	—	—	—	—	—	—	165	100	70	50	35	30	30	30	30	30	30	30	30	30	30	35	35	—	—	—	—	—	—	—
0.2FS10 / 0.5FS10	15	—	—	—	—	—	—	140	95	65	45	40	35	35	35	35	35	35	35	35	35	35	35	35	—	—	—	—	—	—	—
0.2FS10 / 0.5FS10	20	—	—	—	—	—	—	175	120	80	50	45	40	40	40	40	40	40	40	40	40	40	40	40	—	—	—	—	—	—	—
0.2FS10 / 0.5FS10	25	—	—	—	—	—	—	145	95	80	50	45	45	45	45	45	45	45	45	45	45	45	45	45	—	—	—	—	—	—	—
0.2FS10 / 0.5FS10	30	—	—	—	—	—	—	170	110	65	55	50	50	50	50	50	50	50	50	50	50	50	50	50	—	—	—	—	—	—	—
0.5FS10	2.5	165	115	75	55	45	35	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30
0.5FS10	5	—	—	—	—	—	115	80	65	40	35	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30
0.5FS10	10	—	—	—	—	—	130	100	60	50	40	35	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30
0.5FS10	15	—	—	—	—	—	135	80	60	50	45	40	35	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30
0.5FS10	20	—	—	—	—	—	95	75	65	50	40	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30
0.5FS10	25	—	—	—	—	—	115	90	75	55	50	40	35	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30
0.5FS10	30	—	—	—	—	—	135	105	85	65	55	45	35	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30
5P10 / 10P10	2.5	150	110	65	70	55	45	35	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30
5P10 / 10P10	5	235	175	135	105	85	70	55	45	40	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35
5P10 / 10P10	10	—	—	—	235	185	145	115	85	70	60	55	45	40	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35
5P10 / 10P10	15	—	—	—	—	—	205	160	115	95	80	70	60	55	45	40	40	40	40	40	40	40	40	40	40	40	40	40	40	40	40
5P10 / 10P10	20	—	—	—	—	—	205	150	120	100	90	75	65	55	45	45	45	45	45	45	45	45	45	45	45	45	45	45	45	45	45
5P10 / 10P10	25	—	—	—	—	—	185	145	120	105	90	75	65	55	55	55	55	55	55	55	55	55	55	55	55	55	55	55	55	55	55
5P10 / 10P10	30	—	—	—	—	—	215	170	140	125	105	90	75	65	65	65	65	65	65	65	65	65	65	65	65	65	65	65	65	65	65
5P200 / 10P20	2.5	220	180	145	115	90	75	60	50	45	40	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35
5P200 / 10P20	5	—	—	—	235	185	145	120	80	60	50	45	40	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35
5P200 / 10P20	10	—	—	—	—	—	200	150	120	105	95	80	70	60	55	55	55	55	55	55	55	55	55	55	55	55	55	55	55	55	55
5P200 / 10P20	15	—	—	—	—	—	210	165	145	130	105	95	80	70	65	65	65	65	65	65	65	65	65	65	65	65	65	65	65	65	65
5P200 / 10P20	20	—	—	—	—	—	215	185	160	135	115	100	80	85	85	85	85	85	85	85	85	85	85	85	85	85	85	85	85	85	85
5P200 / 10P20	25	—	—	—	—	—	225	195	160	140	120	95	95	95	95	95	95	95	95	95	95	95	95	95	95	95	95	95	95	95	95
5P200 / 10P20	30	—	—	—	—	—	235	205	175	145	110	115	115	115	115	115	115	115	115	115	115	115	115	115	115	115	115	115	115	115	115
5P30 / 10P30	2.5	—	—	200	160	130	105	85	70	60	55	50	45	40	40	40	40	40	40	40	40	40	40	40	40	40	40	40	40	40	40
5P30 / 10P30	5	—	—	—	—	210	170	135	110	95	85	70	65	60	55	60	60	60	60	60	60	60	60	60	60	60	60	60	60	60	60
5P30 / 10P30	10	—	—	—	—	—	230	190	160	135	115	105	90	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80	80
5P30 / 10P30	15	—	—	—	—	—	—	—	—	225	190	160	140	120	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
5P30 / 10P30	20	—	—	—	—	—	—	—	—	—	—	—	—	205	175	135	125	125	125	125	125	125	125	125	125	125	125	125	125	125	125
5P30 / 10P30	25	—	—	—	—	—	—	—	—	—	—	—	—	215	190	150	150	150	150	150	150	150	150	150	150	150	150	150	150	150	150
5P30 / 10P30	30	—	—	—	—	—	—	—	—	—	—	—	—	225	175	175	175	175	175	175	175	175	175	175	175	175	175	175	175	175	175

Engineering Drawing

Specification & Outline Drawing

Original image, not compressed

Dimension & outline drawing of CGIS1910 — click image to zoom / view original.