Factory Knex-1 Explosion Proof Waterproof Industrial Coal Mine Telephone

FACTORY Knex-1 Explosion Proof Waterproof Industrial Coal Mine Telephone

Features:
Analogue telephone matching with most PABX, PBX and PAX system
Robust SMC 2600 glassfibre reinforced polyester die-cast body, Vandal resistant and tamper-resistant hardware, simple installation.
Busy tone detection for auto release the line if line busy
Dry contact for external control automation 
Auto answer
Full Soft lock: only dial out from phone book 50 memory address number
Half soft lock: limit to dial out starting number, e.g. "00852" area code
High temperature approval 
Ring sound 95 dB dfd in 1 m and 10 ringing tone melodies selectable
Listening by loudspeaker: 70dB in 1m
Phone book memory: 50 address ( name & number) programmable
Stainless steel keypad for dial and manuel
Magnetic reed hook-switch
Telephone line powered. No external power or battery required
 
 
 
LCD display include 
Manu setting
Welcome text programmable e.g: welcome to koontech telephone
Full soft lock or half soft lock 
Phone book up to 50 address number selectable
Ring speaker up to 4 level selectable
Hands free talking sound up to 4 level selectable
Handset receiver sound up to 4 level selectable
Up to 9 Ring tone melodies selectable 
Back light up to 4 level selectable 
The dialing number 
Calling time counting






 
 

Pole Mounted Transformers

Product Overview

As a distribution transformer, single-phase transformer has great advantages. It can reduce the length of low-voltage distribution lines, reduce line losses, and improve the quality of power supply. The transformer is designed with high efficiency and energy saving coiled iron core structure, and is mounted on the column. It is small in size, small in infrastructure investment, and can reduce the low-voltage power supply radius by more than 60%. It is suitable for rural power grids, remote mountain areas, scattered villages, agricultural production, lighting and power consumption, and also for the energy-saving transformation of railway and urban power grids.
Structural characteristics
1. High voltage coil is wound with high-quality polyurethane enamelled round copper wire, and low-voltage coil is wound with cable paper wrapped wire. The interlayer insulation uses adhesive tape. During the coil drying process, it begins to melt at a certain temperature, producing adhesion. With the increase of temperature, it starts to solidify, so that adjacent layers of the winding can be reliably bonded into a fixed unit to prevent coil winding displacement, thus ensuring the safety and reliability of the insulation structure.
2. The iron core is made of silicon steel sheet or amorphous alloy silicon steel sheet rolled with grain orientation, which can ensure that the flow direction of magnetic flux is consistent with the grain orientation of silicon steel sheet, giving full play to the excellent performance of the material, and the no-load loss is far lower than the standard requirements, further effectively reducing the noise level of the transformer.

3. The oil tank adopts a fully sealed structure to enhance the reliability of operation, and normal operation is maintenance free.

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Henan New Electric Power Co.,Ltd. , https://www.newelectricpower.com