联系人：陈经理
电话/Phone：+86 13338369201
邮箱/Email：描述
产品描述 产品功能 技术资料
Product Overview
The Bender AGH520S (Article Number: B913033) is an external coupling device designed to extend the nominal voltage monitoring range of Bender ISOMETER® insulation monitoring devices (such as the iso685 series, IRDH275, and IRDH375) up to 7.2 kV AC.
It serves as a high-voltage interface module between medium-voltage ungrounded (IT) systems and low-voltage insulation monitoring electronics, enabling continuous insulation tracking, early fault detection, and system maintenance without direct high-voltage exposure to the measuring instrument.
The Bender AGH520S is essential for expanding low-voltage ISOMETER® monitoring into medium-voltage IT systems up to 7.2 kV.
Technical Specifications
| Parameter | Specification Details |
| Product Model | AGH520S |
| Part / Article Number | B913033 |
| Product Type | High-Voltage Coupling Device for ISOMETER® |
| Nominal System Voltage ($U_n$) | 3(N)AC 0…7.2 kV (UL applications: 0…6.0 kV) |
| Nominal System Frequency ($f_n$) | 50…400 Hz |
| Internal DC Resistance ($R_i$) | $\ge 80\text{ k}\Omega$ |
| System Impedance ($Z_i$) | $\ge 6\text{ M}\Omega$ @ 7.2 kV, 50 Hz |
| Rated Insulation Voltage | AC 6.3 kV |
| Impulse Test Voltage | AC 35 kV (basic insulation) |
| Compatible Devices | ISOMETER® iso685 series, IRDH275, IRDH375, IR470LY-40 |
| IP Degree of Protection | IP64 (internal resin-encapsulated block) / IP20 (terminals) |
| Operating Temperature | -10 °C to +55 °C |
| Mounting & Weight | Screw mounting ($4\times \text{M5}$); approx. 220 × 200 × 178 mm |
Key Advantages
-
Medium-Voltage Extension: Enables standard low-voltage insulation monitoring devices to operate safely in 3-phase systems up to 7.2 kV.
-
Resin-Encapsulated High Insulation: Fully potted internal construction ensures high dielectric withstand strength (35 kV impulse test rating) and reliable operation in demanding environments.
-
Wide Frequency Capability: Operates across standard grid frequencies as well as variable frequency drives from 50 Hz up to 400 Hz.
-
Seamless Controller Integration: Connects directly via standard terminal wiring to Bender ISOMETER® units without requiring specialized software re-configuration.
Important Usage & Installation Precautions
-
High Voltage Risk: The AGH520S operates connected directly to medium voltages up to 7.2 kV. Installation, wiring, and maintenance must strictly be performed by qualified electrical personnel.
-
Terminal Disconnection Warning: Never disconnect terminal AK or AK160 while the coupling device is connected to an active high-voltage line.
-
Protective Earth (PE) Connection: Safe operation depends entirely on a solid ground connection. Ensure all PE terminals on both the AGH520S and the connected ISOMETER® are properly grounded before energizing.
-
Upstream Short-Circuit Protection: Verify system layout and wiring routes to prevent phase-to-phase or phase-to-earth short-circuit hazards on the high-voltage connections.
Applications
-
Medium-Voltage Ungrounded (IT) Networks: Insulation monitoring in 3 kV to 6.6 kV AC distribution systems.
-
Marine & Offshore Power Systems: Medium-voltage generation and drive networks on ships, vessels, and offshore platforms.
-
Mining & Heavy Industry: Transformer secondary feeds, underground mining distribution, and large motor drives.
-
Railway & Substation Facilities: Continuous ground fault and insulation tracking in railway traction power supply systems.
更过产品库存细节：
BENDER 同系列更多型号欢迎咨询：
| RCMS490-D-2 | Bender |
| ISOPV-335+AGH-PV-3 | Bender |
| IRDH375-435 | Bender |
| IRDH275-425 | Bender |
| IRDH575B2-435B91065503 | Bender |
| IRDH275BM-727 | Bender |
| RCMA470LY-21 | Bender |
| IRDH375-UFDK | Bender |
| IRDH375B-435 | Bender |
| IRDH575B1-435 | Bender |
| ISOPV-335+AGH-PV-3 | Bender |
| ISO685SFP200 | Bender |
| isoPV-335+AGH-PV-3 | Bender |
| IRDH375-435 | Bender |
| IRDH575B2-435 | Bender |
| BENDERISO685-D | Bender |
| IRDH275-435 | Bender |
| IRDH275-427 | Bender |
| AGH204S-4 | Bender |
| ISO685-D-CN | Bender |
| ISO685-D-B-CN | Bender |
| IRDH575B1-435 | Bender |
| RCMS460-D-2 | Bender |
| RCM420-D-2 | Bender |
| IR420-D4-2 | Bender |
| IR420-D6 | Bender |
| IR125Y-4 | Bender |
| IRDH575B1-435 | Bender |
| MK2430-12 | Bender |
| RCMA472LY-12 | Bender |
| MK2430-12 | Bender |
| IRDH275-427 | Bender |
| MK2430-12 | Bender |
| RCMS460-D-2 | Bender |
| EDS440-L-4-CN | Bender |
| MK2430-12RS | Bender |
| IR125Y-4 | Bender |
| IR425-D4-1 | Bender |
| isoLR275-327 | Bender |
| IR425-D4-1 | Bender |
厦门戎丰电气设备有限公司主营DCS控制系统备件，PLC系统备件及机器人系统备件，优势品牌：Allen Bradley、BentlyNevada、ABB、HIMA、Reliance 、Bender、National Instruments、Emerson Ovation、Honeywell 、Siemens、Allen-Bradley、 ICS Triplex、FOXBORO、Schneider 、GE Fanuc、Motorola、HIMA、Prosoft等各种进口工业零部件，主营产品广泛服务于电子、冶金、化工、电厂、钢厂、橡胶、水泥、机械设备、筑建等行业。
本篇文章出自厦门戎丰电气设备有限公司官网,转载请附上此链接: https://www.rongfengplc.com
