The B

PUBLI

(NO.PATNA 768) PAT

BIHAR ELEC

Ground Floor, V

No. BERC-SMP 47

section 181(1)(za) read wit

of 2003) and Regulatio

(Standards of Performanc

powers enabling it in that

hereby amends the Pri

Commission

(Standard

Regulations, 2006”, wh

18.01.2007 published i

Commission notified 1^st Am

No. 1226 dated 12.12.20

12.12.2012.

1. Short title, exte

(i)

These Regu

Commissio

(2^nd Amend

(ii)

These Regu

(iii)

These Reg

Licensees i

(iv)

These Regu

publication

REGISTERED

Bihar Gazett

XTRA ORDINARY

SHED BY AUTHORITY

30 BHADRA 1939 (S)

TNA, WEDNESDAY, 30TH AUGUST

CTRICITY REGULATORY COMMISSION

Vidyut Bhawan-II, J.L. Nehru Marg, Patn

__________

NOTIFICATION

The 23^rd August, 2017

7/2016-04—In exercise of powers confe

th sections 57, 58 & 59 of the Electricity A

n 34 of Bihar Electricity Regulatory C

ce of Distribution Licensee) Regulations, 2

t behalf, the Bihar Electricity Regulatory C

incipal Regulation “Bihar Electricity

Performance

Distribution

hich was issued vide notification No.-1/

n the Bihar Gazette No. 83 dated

mendment to the Principal Regulation vide

012 and published in Bihar Gazette No.

ent and commencement:

ulations may be called the Bihar Electricity

on (Standards of Performance of Distributio

dment) Regulations, 2017.

ulations extend to the whole of the State of

gulations shall be applicable to all

in their respective licensed areas in the Sta

ulations shall come into force on the d

n in the official Gazette.

NO. PT.-40

tetetete

2017

erred under

Act 2003 (36

Commission

006 and all

Commission

Regulatory

Licensee)

2007 dated

22.01.2007.

notification

666 dated

y Regulatory

on Licensee)

Bihar.

distribution

ate of Bihar.

ate of their

BIHAR GAZETTE (EXTRA) 30th AUGUST 2017

2. Amendment in Regulation 12(c) :

The existing regulation 12(c) shall be substituted by following:

"12(c) Harmonics:

(i)

Harmonics generated by one consumer may affect the normal

operation of another consumer. Therefore on receipt of a

complaint from a consumer who cannot carry out normal

operations due to large harmonics, the licensee shall investigate

the cause and eliminate or reduce the harmonics. This may

involve identification of harmonic generating consumers and

serving notices on them to instal filters. Harmonics may cause

temporary over voltages and ferro-resonance. These harmonics

may cause large neutral current.

(ii)

The Licensee shall monitor the voltage harmonics and current

harmonics in terms of "Total Harmonic Distortion" (THD), a

measure of distortion of the voltage or current wave form (which

shall ideally be sinusoidal) and is the square root of the sum of

squares of all voltage or current harmonics expressed as a

percentage of the magnitude of the fundamental.

(iii)

In any installations the voltage and current Harmonic Distortion

(THD) shall not exceed the limit as specified in the Central

Electricity Authority (Technical Standards for connectivity to the

Grid) Regulations, 2007, as amended from time to time,

applicable to the Distribution Systems. The Consumer will take

appropriate measures to restrict the THD to the stipulated limit.

(iv)

The total harmonic distortion for voltage at the connection point

shall not exceed 5% with no individual harmonic higher than 3%

and the total harmonic distortion for current drawn from the

transmission/sub-transmission system at the connection point

shall not exceed 8%.

(v)

The Licensee shall submit a quarterly report on THD of voltage

and current harmonic to the Commission of following type of

loads:

(a) Salient Pole synchronous generators

(b) Power Transformers of more than 15 years old

(d) Induction Furnaces

(e) Welding Equipment

(f) Static Power Loads

(g) Inverters / power rectifiers

(h) Railway Traction Load

(vi)

All the users operating the power generating plant in parallel

with the grid shall comply with the terms and conditions of the

agreement for such connectivity laid down by the Distribution

Licensee.

Such units shall also promptly comply with any direction that

may be issued by the SLDC or the Distribution Licensee in the

interest of orderly operation of the grid.

(vii)

The Consumer shall not keep connected to the Distribution

Licensee’s supply system any apparatus including phase

splitters which in the Distribution Licensee’s opinion may

interfere with or effect injuriously the Distribution Licensee’s

BIHAR GAZETTE (EXTRA), 30th AUGUST 2017

supply to other Consumers and may disturb the supply system

in short or long term."

3. Amendment in Regulation 13(3) :

The existing regulation 13(3) shall be substituted by following:

"13(3) Adequate data shall be recorded to calculate the following reliability

indices. The licensee shall calculate the values of these indices as per the formula

and methodology specified below:

(a)

System Average Interruption Frequency Index (SAIFI) : It is

the average number of interruptions (longer than 5 minutes) that

a customer would experience and is calculated as:

SAIFI = Σ (Ai *Ni) / Nt

i=1

(b)

System Average Interruption Duration Index (SAIDI) : It is the

average outage duration for each customer served and is

calculated as:

SAIDI = Σ (Bi *Ni) / Nt

i=1

(c)

Momentary Average Interruption Frequency Index (MAIFI) :

It is the average number of interruptions (less than 5 minutes)

that a customer would experience and is calculated as:

MAIFI = Σ (Ci *Ni) / Nt

i=1

Where;

Ai = total number of sustained interruptions (each longer than 5

minutes) on ith feeder for the month.

Bi = total duration of all sustained interruptions on ith feeder for the

month.

Ci = total number of momentary interruptions (each less than or

equal to 5 minutes) on ith feeder for the month.

Ni = Number of Consumer connected to ith feeder affected due to

each interruption.

Nt = total number of Consumers in the distribution licensee’s supply

areas.

n =

number of 11 kV feeders in the licensed area of supply

(excluding those serving predominantly agricultural loads)."

By order of the Commission,

Parmanand Singh,

Secretary, BERC.

————

PUBLISHED AND PRINTED BY THE SUPERINTENDENT,

BIHAR SECRETARIAT PRESS, PATNA.

Bihar Gazette (Extra) 768—571+400—Egazette

Website: http://egazette.bih.nic.in