Chongqing Blue Jay Technology Co. Ltd

Chongqing, China

The DCEM series DC Energy Meter is designed for power measurement and fiscal billing at an EV Charging station. This DCEM-4MS EV charger meter can measure DC currents (with direction), power, total electricity, voltage, forward and reverse electric energy, and each single-circuit electricity, etc.

The Modbus RTU communication protocol can integrate measurement data with the EV charger's management system. 0-75mV DC shunt, or 5A20A50A100A200A300A400A500A DC Hall effect sensor can be selected to adapt to different application environments of customers.

The BIM series insulation monitoring device monitors the insulation resistance of DC systems (IT systems) devices up to DC 0- 1000V. BIM-CH1 has insulation monitoring start and stop functions. After insulation monitoring is turned on, it can real-time monitor the insulation resistance of the positive and negative poles to the ground. The monitoring results are not affected by DC voltage fluctuations and the symmetry of the insulation resistance of the positive and negative poles.

BIM series are equipped with RS485 /Modbus communication, which can remotely monitor the system status. BIM-CH1 uses two working principles for monitoring: the unbalanced bridge method to monitor the insulation resistance value to the ground, and the balanced bridge method to monitor the voltage value to the ground. Optional temperature sensors can be used for system temperature measurement.

The ELR series digital Earth Leakage Relay is an advanced protection device designed to enhance the safety and reliability of electrical systems. With a hall effect current sensor (HCT), it continuously monitors the residual current in the busbars or branches of the DC system. When the residual current exceeds the preset threshold, the relay promptly outputs an alarm signal, ensuring early detection of potential faults.

Equipped with an alarm function, the digital earth leakage relay ensures that alarm signals remain clearly indicated until the reset signal is received, facilitating easy fault diagnosis and troubleshooting. The earth leakage protection relay is critical for preventing equipment damage, minimizing downtime, and safeguarding personnel against electrical hazards.

An arc protection relay from Blue Jay is an ideal arc flash solution for LV and MV

SCM series Partial Discharge Monitor is an advanced solution for various and continuous partial discharge monitoring in medium-voltage and high-voltage electrical assets such as transformers, power cables (AC& DC cables, MV cables, EHV cables, isolated phase bus), rotating machines (generators, electrical motors), switchgear, etc.

No matter whether

The DH series Peltier condenser adopts semiconductor refrigeration

and the dehumidification method sucks humid air through the fan,

condenses into water through the semiconductor refrigeration

mechanism, and then discharges it from the cabinet through the

conduit to achieve a good dehumidification effect. This reduces

relative and absolute humidity with little increase in temperature,

radically preventing accidents and device aging.

Ultra-small installation size, high efficiency and energy saving, no

need for heater and fan wiring. Equipped with a data acquisition

module for remote monitoring, a reliable replacement for

thermostats and heater/fan combinations.

ALM fault Alarm annunciator is installed on the electrical cabinet panel. It is simple, compact, and enhances wiring efficiency. These universal alarms are suitable for power control and monitoring systems. The alarm utilizes a highly reliable MCU to monitor external status in real time. When an abnormality occurs, the corresponding indicator light on the panel illuminates, the buzzer sounds an alarm, and the alarm relay responds promptly.

The alarm annunciator can be muted, reset, tested, etc., by pressing buttons. The product supports RS-485 digital interface communication (utilizing the MODBUS-RTU communication protocol).

The HVD Series capacitive Voltage Indicator is designed for application in 7.2- 40.53 kV medium-voltage systems with rated frequencies of 50/60 Hz. It is suitable for installation in switchgear incoming busbars, circuit breakers, main transformers, and other critical points where reliable voltage presence detection is required. The device provides three-phase voltage indication and supports multiple LED display modes to suit various operational and safety needs. When high voltage is present, the LED indicators will flash according to preset conditions, offering clear and intuitive visual alerts to maintenance personnel and operators.

In addition to on-site indication, the HVD Series integrates configurable relay output for remote voltage presence alarm, control signaling, or fault protection linkage, enhancing both the safety and flexibility of the entire system. Its compact design, high reliability, and easy panel mounting make it an ideal solution for high-voltage distribution systems. Furthermore, the device incorporates a self-test function, allowing users to verify the indicators operational status at any time, thus improving system reliability and reducing the risk of operational errors.

Blue Jay APM series Multifunction energy meter is a premium panel mounting power analyzer with advanced features and precise measurement accuracy. With a user-friendly interface and four direct access keys, it is easy to use for 3P3W or 3P4W low voltage (LV) installations. APM-96Q multi-function power meter also has a digital RS485 communication port that uses the Modbus Protocol to transmit monitoring data.

APM-96Q multi-function power meter gathers data for intelligent power distribution or plant automation. It measures harmonics and records multi-tariff data for accounting purposes. It monitors up to the 127th harmonic for a clear understanding of electrical grid quality.

Feature

• Class 0.1 for basic power parameter (current, voltage)
• Class 0.2 for active energy (kWh), Class 0.5 for reactive energy (kVarh),
• Panel mounting size: 96*96mm
• With up to 12, 800/s high-speed sampling chip
• ITF technology: galvanic insulation protection for inputs and outputs
• 320X240 Colorful LCD screen display with English characters
• Provides THD and 2-127th individual harmonic monitoring with bar graph display
• Records last 3 month multi-tariff energy data
• Displays three-phase current and voltage waveforms
• Monitoring of Max demand, Grid unbalance, Voltage, and Current deviation.
• Voltage drop and flicker monitoring and recording
• 5 virtual alarms for event tracing
• Max 50 lists SOE records and waveform capture for fault tracing
• Optional 128MB memory for logging basic electrical parameters
• Optional 3 AO ports for electricity transmitter
• Optional 4 DO ports for remote control
• Optional 6 DI ports for data collection