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BIM-M1000 Insulation Monitoring Device for AC/DC system

BIM-M1000
BIM-M1000
BIM-M1000 Insulation Monitoring Device
BIM-M1000 Insulation Monitoring Device

BIM-M1000 Insulation Monitoring Device for AC/DC system

The BIM-M1000 adopts signal-injection measurement technology for continuous insulation resistance monitoring in unearthed AC/DC IT systems up to 1000Vac/dc. It supports multi-level insulation alarms, flexible threshold configuration, and DO outputs for insulation fault alarm and coordinated protection, enhancing system safety and reliability.

The BIM-M1000 complies with IEC 61557-1:2018 and IEC 61557-8:2018 standards and is application for AC/DC IT systems, battery energy storage systems, electric vehicles, and DC charging facilities. Support RS485/ Modbus RTU communication and optional CANbus interfaces, the device can be easily integrated into host computers or remote monitoring systems.

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BIM-M1000
BIM-M1000
BIM-M1000 Insulation Monitoring Device
BIM-M1000 Insulation Monitoring Device

The BIM-M1000 adopts signal-injection measurement technology for continuous insulation resistance monitoring in unearthed AC/DC IT systems up to 1000Vac/dc. It supports multi-level insulation alarms, flexible threshold configuration, and DO outputs for insulation fault alarm and coordinated protection, enhancing system safety and reliability.

The BIM-M1000 complies with IEC 61557-1:2018 and IEC 61557-8:2018 standards and is application for AC/DC IT systems, battery energy storage systems, electric vehicles, and DC charging facilities. Support RS485/ Modbus RTU communication and optional CANbus interfaces, the device can be easily integrated into host computers or remote monitoring systems.

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Feature

  • Insulation monitoring of unearthed AC/DC system;
  • Measure single-pole insulation faultin DC system (DC+ to earth and DC- to earth);
  • Measurement system-to-ground insulation faultin AC system (L1 and L2 to earth);
  • 8 Virtual Alarms with Flexible 2 DO Assignment;
  • Alarm signaling via LEDs and alarm relays;
  • Complies with IEC 61557-1 and IEC 61557-8;
  • Automatically adapt to system Y capacitance <20μF;
  • Programmable 2DI/ 2DO;
  • Voltage over-limit alarm function;
  • Up to 8 configurable alarm functions;
  • DC offset monitoring function;
  • Supports manual/automatic reset of fault and alarm information;
  • Supports RS485/ Modbus RTU communication;
  • Optional CANbus communication interfaces;

Application

  • AC and DC IT power distribution systems;
  • Industrial power and automation;
  • Battery packs and energy storage systems;
  • Electric vehicles and transportation;
  • Renewable energy generation systems;
  • DC charging stations for electric vehicles;

Specification

Supply voltage
Power supply 20-60Vdc, power consumption ≤ 5W
Frequency range 40~65Hz
Monitored IT system
Nominal system voltage 0…1000 Vac/dc
Frequency range 40~65Hz
Insulation resistance
Insulation resistance

measurement range

 0~30MΩ
Insulation resistance

measurement accuracy

 0~100 KΩ, CY≤ 2μF, Bus voltage stability: ±12 KΩ

100 kΩ~1 MΩ, CY≤ 2μF, Bus voltage stability: ±10 %

1 MΩ~30 MΩ, CY =0μF, Bus voltage stability: ±10 %
High voltage input internal resistance
When powered on

(internal high-voltage relay closed)

 Positive and negative poles to earth: 5.1 MΩ respectively
When powered off or not operating (internal high-voltage relay opened) Positive and negative poles to earth: > 500 MΩ
Measuring circuit
Injection measuring voltage ±15V
Injection measuring current <100µA
Injection pulse signal frequency Self-adaptive, depending on the Y-capacitance (CY) value and insulation resistance value.
Permissible system

leakage capacitance

 ≤20μF
Alarm relay output
Quantity 2* SPDT relay
Max. switching current >100mA
Max. withstand voltage 12Vdc
Load capacity 5A@250VAC
Alarm-1 (IR pre-alarm) Default 500KΩ
Alarm-2 (IR alarm) Default 250KΩ
Relay input
Quantity 2*DI for reset/ test, NO, active dry contact, with internal 15Vdc pull-up voltage
Load capacity Ri<500Ω turn on, Ri> 100KΩ turn off
Withstanding voltage
Standard version

High voltage to low voltage: 3500Vdc; 2500Vac (rms)

CAN to high voltage: 3500Vdc; 2500Vac (rms)
High voltage version

High voltage to low voltage: 7000Vdc; 5000Vac (rms)

CAN to high voltage: 7000Vdc; 5000Vac (rms)
Communication
RS485 interface Modbus RTU protocol
Canbus interface (optional) Custom protocol
Environment
Working temperature – 40°C ~85°C
Storage temperature – 40°C ~85°C, humidity: 5~95%RH
Others
Standards IEC 61557-1:2018 and IEC 61557-8:2018
Installation method Standard 35mm Din-rail mounting
Dimension W*H*D: 108*110*66mm

Dimension

Dimension of BIM-M1000

Wiring Diagram

Wiring method in DC system: Connect terminal +, – to positive (+) and negative (-) terminals of DC busbar.
Wiring method in AC system (Support single and three phase)

  • Single-phase: connect terminals L1 and L2 to the system L and N respectively.
  • Three-phase (3P3W): connect terminals L1 and L2 to any two phases of L1, L2, L3.
  • Three-phase (3P4W): connect terminals L1 and L2 to any two phases of L1, L2, L3, N.

 

BIM- M1000 Wiring

Download

Catalog of BIM SERIES DC INSULATION MONITOR

BIM-M1000-User manual-V1.13

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Chongqing Blue Jay Technology Co., Ltd. was founded by engineers with 10+ years of experience. Focuses on the development, production and sales of power automation monitoring products and energy metering instruments.

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Jiangyin High-tech Zone, Jiangyin City, China