ALIND AN + Series User manual

NUMERICAL PANTO FLASHOVER PROTECTION
RELAY AR10 [AN+ SERIES]
USER MANUAL
ALUMINIUM INDUSTRIES LIMITED
RELAYS DIVISION, THIRUVANANTHAPURAM

RELAYS DIVISION
AR10
Numerical Panto Flashover Protection Relay
CONTENTS
SAFETY REQUIREMENTS AR10-I
INTRODUCTION AR10-II
HANDLING INSTALLATIONS & CASE DIMENSIONS AR10-III
USER GUIDE AR10-IV
TECHNICAL DATA & CHARACTERISTIC CURVES AR10-V
TROUBLE SHOOTING AR10-VI
COMMUNICATION AR10-VII

Page 1of 7 AR10-I
RELAYS DIVISION
SAFETY
REQUIREMENTS

SAFETY REQUIREMENTS Page 2of 7 AR10-I
RELAYS DIVISION
CONTENTS
INTRODUCTION
HEALTH AND SAFETY
SYMBOLS AND EXTERNAL LABELS ON THE RELAY
INSTALLING, COMMISSIONING AND SERVICING
_______
DECOMMISSIONING AND DISPOSAL
TECHNICAL SPECIFICATION FOR SAFETY

SAFETY REQUIREMENTS Page 3of 7 AR10-I
RELAYS DIVISION
INTRODUCTION
Before using this product, be sure to read this chapter carefully.
This chapter describes safety precautions when using the relay. Before installing and using the equipment,
read and understand this chapter thoroughly.
It’s not a secret – electricity can be dangerous and when things go wrong lives can be at stake!
Electrical engineers are Industrial safety doctors, so it’s our duty to keep employees health and maintain a
quality of life that we all deserve by providing safe work practices to avoid electrical accidents.
How much electricity is dangerous?????
CURRENT
EFFECT
0.5 –3mA
Tingling sensations
3 –10mA
Muscle contractions (painful)
10 –40mA
“can’t let go” phenomena
40 –75mA
Respiratory paralysis (possibly fatal)
75 –200mA
Ventricular fibrillation (likely fatal)
200 –500mA
Heart clamps tight
>1.5A
Tissue and organs began to burn
Fact: A 15 amp circuit breaker was designed to protect equipment –not people!
The relay is developed with zero percentage of risk factor by its own design. The current carrying paths and
circuits are isolated from the metal case and structure. Suitable clearance depending on the type of insulation
required for different classes are provided.
The relay confirms to Product safety requirement standard IEC 60255-27.

SAFETY REQUIREMENTS Page 4of 7 AR10-I
RELAYS DIVISION
HEALTH AND SAFETY
It deals with the handling of relay in proper way. An individual to be considered as ‘qualified’ with regard to
certain equipment in the workplace, but ‘unqualified’ as to other equipment. “An employee, who is
undergoing on the job training and who, in the course of such training, has demonstrated the ability to
perform duties safely at his or her level of training and who is under the direct supervision of a qualified
person also considered to be a qualified person for the performance of those duties.”
The following requirements must be met, in the order given, before circuits or equipments are re-energized,
even temporarily.
People handling the equipment should be aware about the relay safety handlet.
Ensure that the product is in the off condition before working on the conducting or terminal side.
A qualified person must conduct tests and visual inspections, as necessary, to verify that tools electrical
jumpers, shorts, grounds and other such devices have been removed, so that the circuits and
equipments can be safely re-energized.
Employees exposed to the hazards associated with re-energizing the circuit or equipment must be
warned to stay clear of the circuits and equipment.
Each lock and tag must be removed by the employee who applied it or someone else under that
employee’s direct supervision.
A visual determination that all employees are clear of the circuits and equipments must be made.
For any queries related to relays, feel free to contact ALIND.
Warning: Before working at the rear of unit, isolate all voltage and current supplies.
Caution: Before carrying out any work on equipment you should be familiar with the
contents of the Safety Section or the Safety Guide AR** relays and the ratings on
the equipment’s rating label.

SAFETY REQUIREMENTS Page 5of 7 AR10-I
RELAYS DIVISION
SYMBOLS AND LABELS USED IN THE RELAY
1. FRONT SIDE
Caution: refer to equipment
documentation
Caution: risk of electric shock
Caution: Over voltage
Cat.III
2. REAR SIDE
Protective Conductor (*Earth) terminal
Functional/Protective Conductor (*Earth) terminal.
CMOS Battery provided for the RTC (Real Time Clock) purpose.
Confirm polarity of the battery while replacing.
IEC 61850 sticker
Battery Socket
Battery Lock
CMOS Battery

SAFETY REQUIREMENTS Page 6of 7 AR10-I
RELAYS DIVISION
WARNING
Current transformer circuit
Never allow the current transformer (CT) secondary circuit connected to this equipment
to be opened while the primary system is live. Opening the CT circuit will produce a
dangerous high voltage.
Exposed terminals
Do not touch the terminals of this equipment while the power is on, as the high voltage
generated is dangerous.
Residual voltage
Hazardous voltage can be present in the DC circuit just after switching off the DC power
supply. It takes about 30 seconds for the voltage to discharge.
CAUTION
Earth
Earth the earthing terminal of the equipment securely.
Operation conditions
Use the equipment within the range of ambient temperature, humidity and dust as
detailed in the specification and in an environment free of abnormal vibration.
Ratings
Before applying AC voltage and current or DC power supply to the equipment, check
that they conform to the equipment ratings.
Printed circuit board
Do not attach and remove the printed circuit board while the DC power to the equipment
is on, as this may cause the equipment to malfunction.
External circuit
When connecting the output contacts of the equipment to an external circuit, carefully
check the supply voltage used and prevent the connected circuit from overheating.
Connection cable
Carefully handle the connection cable without applying excessive force.

SAFETY REQUIREMENTS Page 7of 7 AR10-I
RELAYS DIVISION
Modification
Do not modify this equipment, as this may cause the equipment to malfunction, and
any such cases, warranty may be affected.
DECOMMISIONING AND DISPOSAL
De-commissioning
The supply input (auxiliary) for the equipment may include capacitors across the supply
or to earth. To avoid electric shock or energy hazards, after completely isolating the
supplies to the equipment, the capacitors should be safely discharged via the external
terminals prior to de-commissioning.
Disposal
When disposing of this equipment, do so in a safe manner according to local regulations.
It is recommended that incineration and disposal to water courses is avoided. Ensure the
relay is in de energized condition and take precautions to avoid short circuits.
TECHNICAL SPECIFICATIONS FOR SAFETY
1. Protective class
IEC 60255-27:2005 Class I (This equipment requires a protective
conductor (earth) connection to ensure
user safety.
2. Environment
IEC 60255-27:2005 Pollution degree 2 (Normally only non-conductive pollution
occurs except occasionally a temporary
conductivity caused by condensation is to
be expected.)
3. Overvoltage Category
IEC 60255-27:2005 Category III (The auxiliary energizing circuits of the
equipment are connected to a common
battery, common mode transient voltages
of a relatively high value may appear on
the supply leads, and differential mode
voltages may arise from switching in other
circuits connected to the same battery
4. Contact data Test voltage across open contact: 1 kV DC for
1 min source.

Page 1of 5 AR10-II
Relays Division
INTRODUCTION