Diya series of medium voltage metal clad switchgear panels are designed from 3.3kV to 36kV. their robust construction enables them to function well even in harsh environment conditions. the design is made compact without compromising on the safety features, yet offering a wide flexibility in metering and protection schemes to suit customer’s needs.
Embedded Current and Voltage Sensors
Accurate
Embedded current and voltage sensors
Failure free
Current sensors and voltage sensors are a direct replacement to current and potential transformers. When incorporated into Metal clad switchgear it makes your switchgear failure free.
Embedded Current and Voltage Sensors
Metering
Protection
Safe
Current and voltage sensors are designed for both metering and protection, covering all your specification in one design with added benefits.
Protection Class: 5P40
Metering: 0.2s
Feeder Manager (MF790c)
Metering
Protection
Communication
Annunciation
MF790c is a comprehensive numerical relay with in built metering, protection, control, communication and annunciation, covering all your metering and protection schemes.
- 64 energy parameters
- Maximum demand controller
- Cold load pick up
- Trip circuit supervision healthy
Application
- Capacitor bank switching
- Transformer switching
- Motor switching
- Feeder switching
- Furnace switching
Market Segments
- Utilities (primary and secondary)
- Generation
- Industries
- Large Buildings
- Oil & Gas
- Infrastructure
| Parameters | 12kV | 24kV | 36kV | ||||
|---|---|---|---|---|---|---|---|
| Rated Voltage | 12kV | 24kV | 36kV | ||||
| Rated Current | 1250A,1600A,2000A | 1250A | 1250A,1600A,2000A,2500A | ||||
| Short time current withstand capacity | 25kA | 25kA | 25kA/31.5kA | ||||
| Rated Frequency | 50Hz. | ||||||
| Power frequency withstand voltage | 28kV(rms) for_min | 50kV(rms) for_min | 70kV(rms) for_min | ||||
| Lightning impulse withstand voltage | 75kV peak | 125kV peak | 170kV peak | ||||
| Rated short circuit breaking current | 25kA | ||||||
| Rated short circuit making current | 62.5kA | ||||||
| Internal arc withstand capacity | 25kA/1sec | ||||||
| Degree of protection for overall enclosure (outdoor) | IP 55 | ||||||
| Degree of protection for overall enclosure (indoor) | IP 4X | ||||||
| Design ambient temperature | 50̊C | ||||||
| Rated insulation level | 12/28/75 | 24/50/125 | 33/70/170 | ||||
| Type of access | Bottom / Top / Side | ||||||
| Site extensibility | Future Extensible Available | ||||||
| Loss of service continuity | LSC-2B | LSC-2B | LSC-2B | ||||
| Operating Sequence | O-0.3sec.-CO-3min-CO | ||||||
| Circuit breaker type | Roll on floor/Mid mount cassette type | Roll on floor | |||||
| Breaking medium | Vacuum | ||||||
| Operating Mechanism | Spring | ||||||
| Mechanical life | 10,000 Operations | ||||||
| Electrical life at rated current | E2 Operations | ||||||
| Auxiliary voltage | 24V DC,230V DC,110V DC,220V DC | ||||||
| Relevant standards | IS/IEC 62271-1, 100, 200, IEC 60529, IEC 61869-2 | ||||||
Applicable Standards
- IEC 62271-1: High-voltage switchgear and controlgear: common specifications
- IEC 62271-200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and
up to and including 52 kA - IEC 62271-100: High-voltage switchgear and controlgear – Alternating current circuit-breakers
- IEC 62271-106: High-voltage switchgear and controlgear – Alternating current contactors,contactor-based controllers and motor-starters
- IEC 62271-103: High-voltage switchgear and controlgear – Switches for rated voltages above 1 kV up to and including 52 kv
- IEC 62271-102: High-voltage switchgear and controlgear – Alternating current disconnectors and earthing switches
- IEC 61869-2: Instrument transformers – Current transformers
- IEC 61869-3: Instrument transformers – Inductive voltage transformers
- IEC 60044-8: Instrument transformers – Electronic current transformers
- IEC 62271-105: High-voltage switchgear and control gear – Alternating current switch-fuse combinations
- Description
12kV - Nominal System Voltage
11kV - Highest System Voltage
12kV - Rated One Minute Power Frequency Withstand Voltage
28kV - Rated Lightning Impulse Withstand Voltage
75 kVp - Rated Continuous Current
up-to 1250A - Rated Short Circuit Breaking Current
25kA - Rated Short Circuit Making Current
62.5kAp - Rated Short Time Withstand Current
25kA/3sec. - Rated Peak Withstand Current
62.5kAp - Rated Operating sequence
0-0.3sec.-CO-3min-CO - Degree of Protection (Indoor)
IP4x - Degree of Protection (Outdoor)
IP55 - Standards
IS/IEC 62271-1, 100, 200, IEC 60529 - Current Sensing Rating Available
60A, 250A & 750A - Voltage Sensing Rating
11kV/√3 / 2V/√3 - Accuracy of Multifunction Meter in the Feeder Manager
class 0.2S - Auxiliary Voltage Range for the Feeder Manager
18V to 75V DC or 80V to 280VDC
