HJ-Eco Series (Eco-Gas Insulated RMU)

Name: HJ-Eco Series (Eco-Gas Insulated RMU)
Brand: HJATIS

The HJ-Eco Series is a 12 kV ring main unit that uses dry air or N2 as the insulating gas and vacuum switching, without SF6 in the primary circuit. C, F and V modules are available, with catalogue rated currents up to 1250 A and short-circuit withstand ratings up to 31.5 kA.

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HJATIS

PUBLISHED PRODUCT DATA

Catalogue ratings and configurations.

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Module Technical Specifications Matrix

Module Technical Specifications Matrix
Technical Parameter	C-Module / (Load Break Switch)	F-Module / (Switch-Fuse Combo)	V-Module / (Vacuum Circuit Breaker)
Rated Voltage (Ur)	12kV
Rated Current (Ir)	630A	125A	630A / 1250A
Power Frequency Withstand Voltage (1 min)	42kV (Phase/Earth) / 48kV (Across isolation gap)
Lightning Impulse Withstand (BIL)	75kV (Phase/Earth) / 85kV (Across isolation gap)
Short-Time Withstand Current (4s)	25kA	-	25kA / 31.5kA
Peak Withstand Current	63kA	-	63kA / 80kA
Rated Short-Circuit Breaking Current	-	31.5kA (Fuse link limit)	25kA / 31.5kA
Active Load Breaking Current	630A	-	-
Mechanical Endurance (Operations)	5,000	5,000	10,000
Arc Extinguishing Technology	Vacuum Interrupter
Operating Gas Pressure (20°C)	0.025 MPa (Micro-positive pressure)
Protection Degree (Tank / Enclosure)	IP67 (Gas Tank) / IP4X (Outer Enclosure)

CONFIGURATION

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ParameterCatalogue indicationProject input required

01Rated Voltage12kVSystem voltage

02Rated Current630A / 1250A (V-module)Load current requirement

03Short-Time Withstand Current (4s)25kA / 31.5kA (V-module)Fault level

04Mechanical Endurance5,000 / 10,000 operationsExpected switching frequency

05Protection DegreeIP67 (tank) / IP4X (enclosure)Installation environment

STANDARDS & REPORTS

Standards and product documents.

Applicable references: GB/T 3906 and IEC 62271-200. Ask for the edition and reports covering the model offered; a standard number alone does not confirm product compliance.

PRODUCT DOCUMENTSProduct documents available

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APPLICATIONS

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Utility and industrial distribution

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Renewable-energy collection networks

Will the device switch cables, transformers or other plant loads? State the switching duty and required control signals.

TECHNICAL LIBRARY

Product documents

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All documents

Test report2023

HJ-Eco — Test report

Reported model HJHB-12PT/630-20

12 kV / PT unit / 20 kA

Report no.: 23Q0868-S
Test basis: GB/T 3906-2020 · GB/T 1985-2014 · GB/T 11022-2020 · DL/T 404-2018

Tests on the dry-air voltage-transformer cabinet. Not a report for every RMU functional unit.

48 pages·3.4 MB·English guide + Chinese original

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Test report2023

HJ-Eco — Test report

Reported model HJHB-12V/630-20

12 kV / 630 A / 20 kA

Report no.: 23Q2489-S
Test basis: GB/T 3906-2020 · DL/T 404-2018

Dry-air, top-extension arrangement. This report does not establish an internal-arc classification.

55 pages·4.1 MB·English guide + Chinese original

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The English guide is prepared by HJATIS; it is not a laboratory translation or an IEC certificate. Results apply to the tested sample and configuration. The original report and its stated standard editions govern.