Chola Protection Systems (Sample)

Chola · CHO-203 series

Channels

16 analog to 96 analog (see variants)

Sampling rate

10 kHz

Time sync

IRIG-B

Accuracy

0.1% FS

Reporting rate

25 fps

Lead time 6-8 weeks · Warranty 24 months · MOQ 10 nos

Chola · CHO-C86 series

Channels

8 analog to 96 analog (see variants)

Sampling rate

10 kHz

Time sync

IRIG-B

Accuracy

0.1% FS

Reporting rate

50 fps

Lead time 10-14 weeks · Warranty 36 months · MOQ 1 nos

Chola · CHO-351 series

Bays

Up to 16 bays to Up to 128 bays (see variants)

Architecture

Station + process bus

Protocol

IEC 61850 Ed 2

Network topology

HSR ring

HMI

Single HMI

Lead time 16-24 weeks · Warranty 24 months · MOQ 2 lot

Chola · CHO-9A4 series

Function

Transformer differential to Busbar differential (see variants)

Aux supply

220 V DC

CT input

1/5 A selectable

VT input

63.5 V

Binary inputs

16

Lead time 3-6 weeks · Warranty 24 months · MOQ 1 nos

Chola · CHO-C43 series

Function

Overcurrent / earth fault to Line distance (see variants)

Aux supply

24-250 V DC

CT input

1 A

VT input

110 V

Binary inputs

32

Lead time 3-6 weeks · Warranty 36 months · MOQ 1 nos

Chola · CHO-A07 series

Capacity

100 Ah to 800 Ah (see variants)

Chemistry

Flooded lead-acid

Nominal cell voltage

1.2 V

Number of cells

86

Bank voltage

220 V

Lead time 3-4 weeks · Warranty 24 months · MOQ 1 nos

Chola · CHO-096 series

Capacity

40 Ah to 800 Ah (see variants)

Chemistry

Flooded lead-acid

Nominal cell voltage

1.2 V

Number of cells

86

Bank voltage

110 V

Lead time 3-4 weeks · Warranty 60 months pro-rata · MOQ 2 nos

Chola · CHO-EB2 series

I/O capacity

32 DI / 16 DO to 128 DI / 64 DO (see variants)

Analog inputs

16

Protocols south

IEC 60870-5-103

Protocols north

IEC 61850

Interlocking

Bay and station level

Lead time 8-10 weeks · Warranty 24 months · MOQ 1 nos

Chola · CHO-CA6 series

I/O capacity

16 DI / 8 DO to 128 DI / 64 DO (see variants)

Analog inputs

16

Protocols south

IEC 61850

Protocols north

IEC 61850

Interlocking

Bay and station level

Lead time 8-10 weeks · Warranty 36 months · MOQ 1 nos

Chola · CHO-F32 series

Rating

25 A to 400 A (see variants)

Output voltage

24 V

Input

230 V 1-ph

Topology

Thyristor

Voltage regulation

+/- 1%

Lead time 3-5 weeks · Warranty 24 months · MOQ 5 nos

Chola · CHO-707 series

Rating

50 A to 400 A (see variants)

Output voltage

110 V

Input

230 V 1-ph

Topology

SMPS

Voltage regulation

+/- 1%

Lead time 6-8 weeks · Warranty 24 months · MOQ 10 nos

Chola · CHO-A17 series

Coil voltage

24 V DC to 230 V AC (see variants)

Relay type

Trip circuit 74

Contacts

4NO + 4NC

Contact rating

10 A

Operate time

< 30 ms

Lead time 3-4 weeks · Warranty 12 months · MOQ 1 nos

Chola · CHO-E44 series

System voltage

33 kV to 220 kV (see variants)

Panel type

Free-standing

Bay type

Line

Protection

O/C + E/F

Panel size

800 x 800 x 2200 mm

Lead time 10-14 weeks · Warranty 24 months · MOQ 1 nos

Chola · CHO-714 series

System voltage

11 kV to 220 kV (see variants)

Panel type

Duplex

Bay type

Bus coupler

Protection

Differential + REF

Panel size

1000 x 800 x 2200 mm

Lead time 10-14 weeks · Warranty 24 months · MOQ 2 nos