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Mine Flameproof Intrinsic safety High Voltage Vacuum Distribution Device (Vertical Rotation Isolation Series) PJG21-50~630/10DG PJ621-50~630/6DG

Suitable for underground coal mines in explosive hazardous environments, control, protect, and measure power supply lines and equipment in three-phase AC neutral ungrounded or arc suppression coil grounded power supply systems with rated frequency 50Hz, rated voltage 10KV, 6KV, and rated current not exceeding 630A. It can meet the usage needs of different methods such as receiving power, feeding power, contacting, and connecting stations. Connected with KJ series underground power grid monitoring system, it can realize remote automatic control, monitoring and monitoring of power equipment, and realize modern management such as unattended Electrical substation.

Keywords:

Mine Flameproof Intrinsic safety High Voltage Vacuum Distribution Device (Vertical Rotation Isolation Series) PJG21-50~630/10DG PJ621-50~630/6DG


DESCRIPTION

Product Usage

Suitable for underground coal mines in explosive hazardous environments, control, protect, and measure power supply lines and equipment in three-phase AC neutral ungrounded or arc suppression coil grounded power supply systems with rated frequency 50Hz, rated voltage 10KV, 6KV, and rated current not exceeding 630A. It can meet the usage needs of different methods such as receiving power, feeding power, contacting, and connecting stations. Connected with KJ series underground power grid monitoring system, it can realize remote automatic control, monitoring and monitoring of power equipment, and realize modern management such as unattended Electrical substation.

Main Features

Adopting advanced and reliable quick opening structure, drawer type core frame, compact structure, easy to repair and maintain. Set up an independent secondary wiring chamber, which is convenient for wiring and has multiple external terminals to meet the various wiring needs of users;

The high-voltage vacuum circuit breaker adopts the ZNG18 longitudinal rotation isolation vacuum circuit breaker, which is composed of two parts: a three-phase rotatable pole and a fixed and immovable dual function integrated operating mechanism. Its performance is more stable and reliable than the overall mobile handcart circuit breaker. After the vacuum tube of the circuit breaker is opened, the three-phase pole rotates longitudinally, and the incoming and outgoing line contacts are separated from the busbar, achieving physical isolation. The opening and closing of the isolation can be manually operated, or electrically operated or remotely operated;

Adopting the XK-810CP high-performance digital comprehensive protection device, with a full Chinese large screen LCD display and menu style operation, the display information is rich and the interface is friendly. Combined with the human-machine interface keyboard, it can achieve protection setting modification and various operations without power outage;

It can measure and display three-phase voltage, current, zero sequence voltage, zero sequence current, active power, reactive power, power factor and other parameters of the power grid in real time, as well as display equipment fault type, fault parameter, fault time, and has fault memory and query functions;

Equipped with quick break protection, overcurrent, overload, selective leakage, overvoltage and undervoltage protection functions, the device is equipped with fiber optic interface and fiber optic differential protection function, effectively solving the problem of underground short circuit skip tripping and avoiding large-scale power outage accidents;

Equipped with fault recording function, recording voltage and current waveforms before and after faults for easy analysis of fault causes. In case of faults, enter the protection menu for information query;

Equipped with fifth harmonic leakage protection, wind and gas blocking, and electricity metering functions;

Adopting dual circuit outgoing lines for dual circuit leakage and insulation monitoring protection to meet multi load requirements;

Equipped with reliable mechanical locking, electrical locking, emergency opening and other devices to ensure reliability;

It is equipped with standard RS485 communication interface, which is configured in the mine monitoring system to realize the five shake functions of remote measurement, remote control, remote signaling, remote adjustment, and remote viewing. It can perform remote opening, closing, remote meter reading, and other functions to achieve unattended Electrical substation.

 

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Special signs: handcart and shell composite design, circuit breaker and isolation switch composite design, and intelligent integration design.

The multifunctional circuit breaker is both a movable handcart circuit breaker and an isolation switch. The isolation switch has electric function, which meets the requirements of smart grid for remote control of equipment and electric operation isolation. In the propulsion switch of the isolation circuit breaker handcart, there is no need to move the isolation circuit breaker handcart again. The isolation function can be achieved by operating the pole rotation of the isolation circuit breaker body. The structure is lightweight, the operating driving force is small, and the reliability is high.

The traditional electric chassis type entry and exit method requires the isolated opening and closing to pull the entire circuit breaker to move, with a heavy load, which can easily cause various faults such as jamming and deviation.

The inlet and outlet contacts of this vertical rotating high-voltage vacuum distribution device adopt an upper and lower layout, and the airflow channel is easy to pass up and down, with a large heat dissipation space. The effect is significantly higher than that of ordinary plug-in contacts, providing effective protection for heavy load work.

The isolation contact adopts a duck billed self-healing structure, and the contact automatically increases contact pressure as the temperature rises, reducing the adverse effect of temperature rise on the contact. The heating of the contact finger causes the spring plate to heat up and expand. Due to the limiting effect of the contact frame, the deformation force of the spring pushes the contact finger inward to increase the contact pressure, thereby reducing the temperature rise. The contact adopts an independent finger structure, and the fingers of the contact are independently applied pressure by their respective springs. The pressure of each finger is not affected by the pressure changes of other fingers. If a certain contact finger fails due to poor contact and heating, it will not cause a decrease in the pressure of other contact fingers.

Main technical parameters

 

Product Model PJG21- □/10Y PJG21- □/6Y
Rated voltage(KV) 10 6
Rated current(A) 50、100、150、200、300、400、500、630
Rated short circuit breaking current(KA) 25
Rated short-circuit making current(KA) 63
Mechanical life(次) 20000
Handcart operation mode Electric/manual
Contact temperature measurement 6-point wireless temperature measurement
Air distance between upper and lower isolation fractures(mm) >230
Asynchronous opening and closing of three-phase rotating circuit breaker
(ms)
≤3
Rotation angle of rotation isolation(°) 90±0.5
Manpower operation distance for rotating isolation(N ·M) ≤10
Opening and closing time of rotary isolation electric operation(S) ≤15
Overall dimensions(mm) 1470×1330×1580(wide×high×deep)
Weight(kg) 1200

Related products


Longyuan Xinke Electric Co., Ltd


+86-391-6836868

+86-391-2193665

Add:Zone B, Tiantan Venture Park, High tech Zone, Jiyuan City, Henan Province

Tel:+86-391-6835588

Email:lyxkdq@163.com

 

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Who are we?

The company is committed to providing advanced technology, stable quality, safe and reliable mining explosion-proof electrical equipment and automation systems for the mining industry. The company's products cover nearly 100 specifications and models of various high and low voltage switches in coal mines, and are suitable for various application scenarios in Electrical substation, roadways, and mining faces.

Longyuan Xinke Electric Co., Ltd

+86-391-6836868

+86-391-2193665

Add:Zone B, Tiantan Venture Park, High tech Zone, Jiyuan City, Henan Province

Tel:+86-391-6835588

Email:lyxkdq@163.com

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