Observation for continual improvement as per IMS- Proactive and Generative Approach EHSQ MONITORING AD

 Observation for continual improvement as per IMS- Proactive and Generative Approach EHSQ MONITORING

AD

Amarnath Giri Dr

To:

Vali SKB; Simhachalam Sidda

+ 1

Thu 9/11/2025 7:55 PM

Dear Sir, 

Very good evening, 

 Plot 10 -Movable office dated on 11.09.2025

Initiated & innovated by SGM Sir for best team building to excel work in world class IMS ADVANCED SYSTEM, It is today Welcomed by SGM Sir- in the presence of GM Sir -DGM- EHSQ-Technical , O& M , HR , TRAINING and all plots InCharge & Supportive staff, security associates.

Goal :  Safety first ,Production enhancement, Excel in Operation & Maintenance, EHSQ Improvements.

SGM Sir, welcomed all & asked to all plot InCharge to work with dedication , devotion and determination as a leader .

It is today's Reviewed by SGM Sir- DAILY ACTIVITIES , String monitoring , Vehicle MAINTTENANCE,CIVIL WORK , MCR ALL ROOM ,  INVERTER INSTALLATION - COMMISSIONING AND OPERATION AND MAINTENANCE monitoring and daily updating 

As per observation issue and solution.

It has been found that since 1 September to 11 September Operation & Maintenance, EHSQ Improvements are continually increasing -visual observation , data interpretation Weather forecasting , Internal and external monitoring of equipment are going on .

A gas cylinder audit in canteens is

a crucial safety and compliance inspection, typically performed by a qualified authority or a trained individual to verify that cylinders are stored, used, and handled according to PESO (Petroleum and Explosives Safety Organization) rules, Indian Standards, and canteen-specific safety protocols to prevent accidents

. The audit checks for proper cylinder placement, adequate ventilation, connection integrity, valve conditions, and the presence of required licenses, ensuring a safe and legally compliant operation. 

Equipment and System Integrity 

• Equipment Maintenance:
  Regularly clean and maintain the gas stoves and associated equipment to prevent blockages and ensure safe operation.
• System Check:

  The entire LPG system, including manifolds, should be properly installed and regularly inspected for any signs of damage or wear.

SGM sir enforced to plot InCharge to educate associates must go through P&ID, Trip system , Significance of Trip system and follow HIRA and mitigation plan .

EHSQ AWARENESS POINTS 

A Hazard and Operability (HAZOP) study for a solar plant's design, focusing on trip systems, examines deviations and their potential consequences at the String Combiner Box (SCB), central inverter, transformer, High Tension (HT) panel, and grid connection points. The process systematically identifies risks by applying guide words (e.g., No, More, Less) to process parameters (e.g., current, voltage) to uncover hazards like electrical faults, overloads, or grid disturbances, thereby ensuring a safe and reliable plant design. 

HAZOP Study Approach for a Solar Plant

1. Define the Scope:

Identify all process units and operating nodes within the plant, including the PV arrays, SCBs, inverters, transformers, HT panels, and grid interconnection points. 

Consider the complete operational cycle from DC generation to AC grid connection. 

2. Form a Multidisciplinary Team:

Assemble a team with diverse expertise, including design engineers, electrical engineers, operations personnel, and safety specialists, to thoroughly analyze the system. 

3. Apply Guide Words and Process Parameters:

For each process unit (SCB, inverter, etc.), use standard HAZOP guide words and the relevant process parameters to brainstorm deviations. 

Example: SCB (String Combiner Box):

Guide Word: "No" + Parameter: "Current":

Deviation: No DC current from a PV string. 

Potential Causes: Broken wire, open circuit breaker in the SCB. 

Consequences: No power output from that string, potential overload on other strings.

Safeguards: Fuse failure alarms, string monitoring. 

Guide Word: "More" + Parameter: "Voltage":

Deviation: More than the specified DC voltage from a string.

Potential Causes: High irradiation, faulty bypass diodes. 

Consequences: Damage to the inverter, fire hazard. 

Safeguards: Overvoltage protection in the SCB. 

Example: Central Inverter:

Guide Word: "No" + Parameter: "AC Output":

Deviation: No AC output from the inverter.

Potential Causes: Inverter fault, loss of grid connection, AC breaker trip. 

Consequences: Loss of power generation, shutdown of the plant.

Safeguards: Grid synchronization monitoring, fault detection systems. 

Example: Grid Connectivity:

Guide Word: "Off" + Parameter: "Grid Voltage":

Deviation: Grid voltage is off.

Potential Causes: Grid outage, protective relay trip. 

Consequences: Plant shutdown, loss of revenue. 

Safeguards: Anti-islanding protection, grid stability monitoring. 

4. Identify and Document Deviations and Consequences:

Record every potential deviation from the intended operation and its associated hazards. 

5. Analyze Safeguards:

Evaluate existing protective devices and safety systems, such as fuses, circuit breakers, surge protectors, and anti-islanding features, designed to prevent or mitigate the identified hazards. 

6. Recommend Actions:

Propose new safeguards, modifications to existing ones, or operational changes to reduce identified risks to an acceptable level. 

7. Review and Follow-up:

Periodically review the HAZOP study results and recommendations to ensure they are implemented and remain effective.