Overvoltage Protection Device Rv2

Electricity System SPD, M-GDT, MOV,
Signal System SPD
Feeder System SPD

Class B / Type I
Class C / Type II
Class D / Type III
Data Surge Protection
PoE Surge Protection
Signal Surge Protection

Mining belt conveyor integrated protection device
Our Mining Integrated Protection Device is applicable to hazardous place with gas and dust explosion, power supply system of 50Hz voltage AC 1140/660v, to achieve drive and protection to the belt conveyor. and our Mining Intrinsically Safe PA Phone, Frequency Converter For Coal Mines is also hot selling now.
The device adopts single-chip as the control core, 4.3-inch color LCD module as a human-computer interaction interface, it is specially designed for tape conveyor, with functions of the main drive, deviation, emergency stop, vertical tear and other protections as a whole, it also has functions of start warning, malfunction alarm. The device adopts high-performance microcomputer as the control core, to control and protect the motor through the acquisition, analysis, and calculation of the operation state signal. It has functions of overload, phase loss, leakage lock, short circuit and other protections, at the same time with the functions of control the start and stop of the motor and alignment display of the deviation and emergency stop malfunction. It can real-time display the belt running speed, tape tension, drum temperature, motor voltage, current and other parameters when normal operation.
Technical characteristics
Sets the main drive and protection of the belt conveyor to realize one device to control a belt conveyor
Two 120A (80A) drive units with complete and reliable motor protection
Matching eight kinds of protection sensors can realize the eight protections of the transport aircraft, with deviation, emergency stop, vertical tear intelligent alignment and other functions
Color display real-time display equipment operating conditions, motor voltage, current, temperature, belt speed, etc., with fault status display and fault record query function
With early warning, fault alarm function
8-channel PT100 temperature acquisition and infrared temperature acquisition
Small size, cost-effective

Mining explosion-proof lighting integrated protection device
The device is applicable to coal mines containing explosive gas, supplying the control and protection of power for the 127V explosion-proof electric devices.
 With fast-open door structure
The voltage can be converted, there is no need to pull out dry type transformer to change
It has protection functions of short circuit, leakage, leakage lockout and and insulation monitoring function
Rated capacity4.0KVA
Rated voltage1140, 660/127VNo-load 133V
Rated current2.02, 3.49/17.36
Allowable temperature rise75

Our featured products automatic transfer switch, circuit breaker, contactor, pilot light,relay, SPD, etc. with solid quality and considerable price and could equip them with enclosure.

Surge Protection Device (SPD)
It is a device used to limiting instant surge voltage and discharge surge current, it at least including a non-linear component.
SPD for Power Supply System Series Selection Guide
The installation of SPD at each lightning protection zone, according to the standard of low voltage electrical appearance, make classification of electrical equipment in accordance with the over voltage category, its insulation withstand impulse voltage level can determine the selection of SPD. According to the standard of low voltage electrical appearance, make classification of electrical equipment in accordance with the over voltage category as signal level, loading level, distribution and control level, power supply level. Its insulation withstand impulse voltage level are:1500V,2500V,4000V,6000V. As per to the protected equipment installation position different and the different lightning current of different lightning protection zone, to determine the installation position of SPD for power supply and the break-over capacity.
The installation distance between each level SPD should not more than 10m, the distance between SPD and protected equipment should as short as possible, not more than 10m. If due to limitation of installation position, can't guarantee the installation distance, then need to install decoupling component between each level SPD, make the after class SPD can be protected by the prior class SPD. In the low voltage power supply system, connecting an inductor can achieve the decoupling purpose.
SPD for power supply system specification selection principle
Max. continuous operating voltage: bigger than protected equipment, the system's max. continuous operating voltage.
TT System: Uc 1.55Uo (Uo is low voltage system to null line voltage)
TN System: Uc 1.15Uo
IT System: Uc 1.15Uo(Uo is low voltage system to line voltage)
Voltage Protection Level: less than the insulation withstand impulse voltage of protected equipment
Rated discharge current: determined as per to the lightning situation of the position installed and lightning protection zone.

SP1 Series
Normal Working Conditions
-Altitude not exceed 2000m
-Ambient air temperature:
Normal range: -5 ºC~+40 ºC
Extend range: -40 ºC~+80 ºC
-Relative Humidity: 30% - 90% under indoor temperature condition
- At the place without obviously shaking and shock vibration
- Non-explosion danger medium, non-corrosion gas and dust ( including conductive dust)
Classification
-As per Nominal Discharge Current:
5,10,20,30,40,60KA(8/20 µs)
- As per Maximu

Structure Size : 225 - 355
Rated Power : 45 - 315 kW
Pole Number : 2 - 4
Protection Class : IP23
Voltage : 380 V (Contact us for different voltages.)
Frequency : 50 Hz (Contact us for different frequencies and speed control devices.)
Build Type : B3 (Contact us for different structure types.)
Mechanical Structure : Body and covers are cast iron, legs are ductile iron
Cooling Type : It is supplied by the air that the propeller at the back of the engine circulates inside the body. (Internal Cooling)
Insulation Class : F / H
Working Regime : S1
Ambient temperature : 40 C
Motor Protection : Thermistor and Motor Protection Relay

Structure Size : 160
Rated Power : 1.25 - 6 kW
Pole Number : 16 - 4
Protection Class : IP23
Voltage : 380 V (Contact us for different voltages.)
Frequency : 50 Hz (Contact us for different frequencies and speed control devices.)
Build Type : A4 - B3 - B9
Mechanical Structure : Body cast iron
Cooling Type : IC 410 (Cooling by forced cooling fan)
Insulation Class : F (Contact us for different insulation classes.)
Working Regime : S3 - S5
Ambient temperature : 40 C (Contact us for higher ambient temperatures.)
Motor Protection : On request, a thermistor can be installed and a motor protection relay can be provided.

Structure Size : 90 - 200 (Contact us for different types of needs.)
Rated Power : 0.55 - 30 kW
Pole Number : 2 - 4 - 6 - 8 -10 - 12 - 16
Protection Class : IP55 (Contact us for higher protection classes.)
Voltage : 380 V (Contact us for different voltages.)
Frequency : 50 Hz (Contact us for different frequencies and speed control devices.)
Build Type : B3 (Contact us for different structure types.)
Mechanical Structure : Body and covers are cast iron, Legs are ductile iron.
Cooling Type : IC 411 (Contact us for different cooling types and for forced cooling.)
Insulation Class : F (Contact us for different insulation classes.)
Working Regime : S1 (Contact us for S2..S10 operating regimes.)
Ambient temperature : 40 C (Contact us for higher ambient temperatures.)
Motor Protection : Thermistor and motor protection relay for over 250 types (Applicable to smaller types.)

Structure Size : 90 - 355
Rated Power : 0.55 - 400 kW
Pole Number : 2 - 4 - 6 - 8 -10 - 12 - 16
Protection Class : IP55 (up to 280 types), IP65 (315 types and above) (Contact us for higher protection classes.)
Voltage : 380 V (Contact us for different voltages.)
Frequency : 50 Hz (Contact us for different frequencies and speed control devices.)
Build Type : B3 (Contact us for different structure types.)
Mechanical Structure : Body and covers are cast iron, legs are ductile iron
Cooling Type : IC 411 (Contact us for different cooling types and for forced cooling.)
Insulation Class : F / H (Contact us for different insulation classes.)
Working Regime : S1 (Contact us for S2..S10 operating regimes.)
Ambient temperature : 40 C (Contact us for higher ambient temperatures.)
Motor Protection : Thermistor and motor protection relay for over 250 types (Applicable to smaller types.)