Zelio Smart Relay

Zelio is a smart relay.

The purpose of creation of the Smart Relay :

1. To replace the logic and relay control circuit construction which is a direct installation.

2. With smart relay control circuit is built in software.

3. Smart Relay is designed for installation and maintenance of industrial electrical technicians who do not have to have a high electronics skills.

Advantage Smart Relay:

1. Very easy to implement and faster project implementation time.

2. Is flexible and very reliable.

3.Easy to modify (with software).

4. More economical than PLC for simple applications.

5. Require a shorter training time.

General Rules Grounding System

General Rules Grounding System

> All open conductive parts must be connected to earth via the protective conductor (PE)

> Section that can be touched by the open conductive simultaneously grounded conductor shall be connected with the same (equipotential bonding)

> Switching devices (switching device) should be automatic release of all the installations are troubled by the touch of dangerous disturbance.

> The maximum tripping time rather than switching device must be lower than the time specified on the map "effect of current - the duration of current flow in the human body."

Basic Principles of Protection of Human Life

BASIC PRINCIPLES OF PROTECTION OF HUMAN LIFE

1 Tap Jump (Direct Contact)
2 Tap Indirect (Indirect Contact) PUIL 2000

> Protection of humans from direct touch
Definition is "the contiguity of human or livestock with live parts" (PUIL 2000), such contacts occurred between members of the human body directly or livestock with live parts that will cause electric shock. "

Human protection in accordance with PUIL 2000

> Impedance of the human body

UC = ZT ID

> ZT depends on :
* Frequency
* Voltage touch
* Track the flow of electricity in the human body

> The hazard depends on :
* Strong noise current ID
* The length of time the flow of electricity through the human body
* At 50 Hz, sensitivity at the maximum rate.

Tracking Phenomenon

Tracking Phenomenon (Solution! Eliminate any harmful leakage current protective devices residual current with 300 mA)
1. There are pollutants and sticking on the surface of insulation
Leakage currents (residual) flow through the small part that pollute and / or with high humidity
2. Small sparks arise during the drying stage

The dry part can no longer withstand voltage, nascent small electric sparks on the surface. Sparks Centre has a very high temperature > 10 000 C
3. Certain places there pengkarbonan
These places occur after periods of warming pengkarbonan ; started slightly damaged insulation material
4. Leakage current to flow again during the next sticking
During the period of the next sticking, flow gradually enlarged to flow through the damaged surface
5. During the subsequent drying stage, resulting spark new. The number of electric sparks increased, pengkarbonan surface and causing widespread damage to an increasingly severe
6. Damaged surface increases the longer the.  

The bits of insulation resistance decreases, the flow grows in each cycle.
7. After a certain time to burn insulation materials
When the leakage current becomes large enough, electrical sparks that occur are strong enough to burn the insulation material

Transformer Definition

● The transformer is an electrical device that can connect the electricity networks that have a wide range of voltages so that power can be distributed widely.

● With a transformer, generator (380 volt) transmission line (150 kV) and load electrical load (220/230 Volt) can work simultaneously on different voltages.